Re: [CentOS] [Slightly OT] Data Preservation
>-Original Message- >From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf >Of ML >Sent: Friday, October 02, 2009 9:46 PM >To: CentOS mailing list >Subject: [CentOS] [Slightly OT] Data Preservation > >HI All, > >So I have 5 1U servers (running Windows) that have Ultra 320 SCSI >Drives in them. > >The owner of these boxes wants the drives captured in their current >states to .iso or .cdr or something where if the need arises the data >can be viewed, used again, etc. > >So what is the best approach? Boot from a Live CD, hook up a USB >external HD and do what? Can I create a .iso or .cdr (or some other >portable format) and have it created on the external USB? > >Thoughts on this process would be appreciated. Others have already suggested Clonezilla och g4u. In either case, it might be a good idea to run the perl-applet "win-preclone" (requires ActivePerl) on the servers. This applet will fill all empty hd-space on the servers with zeroes, significantly decreasing the resulting gz-file you'll get from either Clonezilla or g4u. Neither of the clone tools mentioned will keep the servers online and available for external use while the cloning is in progress. You might want to check up on this with the owner, if the servers are mission-critical, or something to that effect. Over here, a clone from a WinXP-box (with Office and bunch of other standard apps we deploy) residing on a 40GB hd will result in a 8GB-file. After running the win-preclone perl script on it, it will be about 2GB. Just to give you an idea. Make sure you have space enough on the ftp-server, you're cloning to. HTH. -- /Sorin smime.p7s Description: S/MIME cryptographic signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Slightly OT: Vim command (or macro) to replace space under cursor by " " (without deleting the following word)
Hi, I'm using Vim to edit some static XHTML pages. I have to (manually) check for non-breakable spaces in my text, and eventually replace simple spaces by the following character sequence: Usually, when I perform the same operation over and over in a text, I do it once, and then repeat it in command mode using [.]. But I can't figure out how to do this here. Here's what the according macro would look like. Pressing F2 would replace the space under the cursor by " " : :map cw ... except this also deletes the word after the cursor, which is annoying. Any suggestions ? Cheers, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] test
testing mail delivery ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Slightly OT: Vim command (or macro) to replace space under cursor by " " (without deleting the following word)
On Oct 5, 2009, at 5:34, Niki Kovacs wrote: > Here's what the according macro would look like. Pressing F2 would > replace the space under the cursor by " " : > > :map cw > > ... except this also deletes the word after the cursor, which is > annoying. > > Any suggestions ? Have you tried the "s" command (substitute) instead of "cw"? Alfred ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] test
Janez Kosmrlj wrote: > testing mail delivery > > deliver failure: 550 Administrative Prohibition ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] GnuPG for CentOS 5.3?
On Sun, Oct 4, 2009 at 9:36 PM, Johnny Hughes wrote: > It seems that dns-sd is part of gnome-vfs2. I do not have that error. > Do you have gnome-vfs2 installed. Yes. After reading your post I tried to install it and got this: Package gnome-vfs2-2.16.2-4.el5.i386 already installed and latest version Nothing to do [r...@dell2400 ~]# When I launch seahorse, I get the following message in the shell, but seahorse also launches. Not sure if I need that service running to run seahorse. I will see if I can get it to work. Thank you and have a great week! [la...@dell2400 ~]$ seahorse can't lock memory: Cannot allocate memoryWARNING: not using secure memory for passwords ** Message: init gpgme version 1.1.8 ** (seahorse:3907): WARNING **: DNS-SD initialization failed: Daemon not running ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] problem installing centos 5.3 on IBM x3200 m2
Hi, I am trying to install centos 5.3 on ibm x3200 m2 server. The problem appears when the installer is about to finish the installation. It detects the RAID correctly, but it doesn't finish formatting the root partition. I tried the default partition layout and also a custom one, but it always ends with the same message: An error occurred trying to format /. this problem is serious and the install cannot continue. I also checked the error console (ctrl+alt+F4) and it writes: <3> sd 0:1:10:0: rejecting I/O to offline device lspci says that the machin has an: LSI Logic SAS1064ET PCI-Express SCSI controller Broadcom NetXtreme BCM5722 Ethernet Has anybody an idea, how to fix this? BR ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Slightly OT: Vim command (or macro) to replace space under cursor by " " (without deleting the following word)
Alfred von Campe a écrit : > > Have you tried the "s" command (substitute) instead of "cw"? > > Alfred > Alfred, you're a star ! Thanks very much ! Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Slightly OT: Vim command (or macro) to replace space under cursor by " " (without deleting the following word)
Niki Kovacs wrote: > :map cw > > ... except this also deletes the word after the cursor, which is annoying. > c1l thats digit 1, lower case letter L, lower L being the move left command. the 1 is uneeded, but c3l would change 3 characters, etc. btw, my favorite way of doing what you said would be... / c1l then n to find the next space, and . to execute the change op. you sure don't want to change spaces that are inside < > commands, so a global change and replace is not suitable. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] DNS Serving - Why my own?
HI All, Can anyone explain why I might want to run my own DNS Server in-house? I have a comcast business circuit and use their DNS servers and when I need entries, I use GoDaddy where I buy my domains. Best, -ML ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
On Mon, Oct 5, 2009 at 12:17 PM, ML wrote: > HI All, > > Can anyone explain why I might want to run my own DNS Server in-house? > I have a comcast business circuit and use their DNS servers and when I > need entries, I use GoDaddy where I buy my domains. > > Best, > -ML If you want to do more complex things, like subdomain delegation, split views, etc... Most ISP providers do not allow that sort of functionality, and the ones that do usually require that you submit requests through them (no web control panel) and it gets updated on their timeline. If you just need basic stuff with A, MX, CNAME, and other basic records, ISP DNS is just fine. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
ML wrote: HI All, Can anyone explain why I might want to run my own DNS Server in-house? I have a comcast business circuit and use their DNS servers and when I need entries, I use GoDaddy where I buy my domains. Best, -ML ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos It depends upon how many PCs / servers you have and what functions these perform. If you only have one or two computers, do not run your own servers then you have no need for your own DNS. If on the other hand you have multiple servers and computer workstations and want to be able to connect to these by name then running DNS makes lots of sense. If you host your own web site and email etc then having your own DNS (or masquerade) saves bandwidth and more particularly time in DNS lookups. HTH <>___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
ML wrote: > HI All, > > Can anyone explain why I might want to run my own DNS Server in-house? > I have a comcast business circuit and use their DNS servers and when I > need entries, I use GoDaddy where I buy my domains. > A) run a caching server to speed up lookups B) you want to have DNS for your private network behind a firewall. C) run your own authoritative DNS because you don't want to deal with funky outfits like godaddy. I belong to all three of these sets. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Build a Firewall (Can I learn to do this...)
Go with a dedicated firewall distro like pfSense CentOS can certainly do it, but why bother? -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
ML wrote: > HI All, > > Can anyone explain why I might want to run my own DNS Server in-house? > I have a comcast business circuit and use their DNS servers and when I > need entries, I use GoDaddy where I buy my domains. It's generally a good idea to have a caching server locally for speed and if you use NAT and private addresses, the same server(s) can be primary for the internal view of your domain. If you aren't a large enterprise with multiple server sites, you might be better off letting a service provider handle the public view. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 LDAP problem.
Problem solved... This time I didn't use the CentOS Extras repo. However, still some problems with v5.3 until I just upgraded kernel, smb and nscd and now working and rebooting perfectly! :) Ben ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
All great responses. Why would a small business want to run their own DNS? Independence and control. If you want or require the ability to route people to internal (on your LAN/WAN) web-based applications to URL's like http://intranet or https://yourcompanyquickenbooks this is one way rather than having your employees try and remember things like https://10.1.1.1 or maintaining a bunch of lmosts (Win) and /etc/hosts (*nix) files on workstations and laptops. Or if you have trouble frequently with your ISP's DNS servers (Comcast or whoever) this is a simple way to go (caching). Make sure you secure it and have it nicely hidden in a DMZ or on your internal net through. One snag to keep in mind is that if you have your internal server acting authoritatively for yourcompany.com and externally it is a different SOA you could run into overlap issues. But in general the reason is that most companies have stuff in their internal DNS they certainly do not want known in the public and want to manipulate resolution internally for some things. But if your business can live without the be nefits or protection that running your DNS server internally brings, then really no need to add another server to your admin duties unless you are really excited to manage a DNS server or tackle some complex and uber-secure Master/Slave architecture as a project. Hopes this helps. Larry Kemp Network Engineer U.S. Metropolitan Telecom, LLC Bonita Springs, FL USA -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Les Mikesell Sent: Monday, October 05, 2009 12:31 PM To: CentOS mailing list Subject: Re: [CentOS] DNS Serving - Why my own? ML wrote: > HI All, > > Can anyone explain why I might want to run my own DNS Server in-house? > I have a comcast business circuit and use their DNS servers and when I > need entries, I use GoDaddy where I buy my domains. It's generally a good idea to have a caching server locally for speed and if you use NAT and private addresses, the same server(s) can be primary for the internal view of your domain. If you aren't a large enterprise with multiple server sites, you might be better off letting a service provider handle the public view. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
Kemp, Larry wrote: > All great responses. > > Why would a small business want to run their own DNS? Independence and > control. > > If you want or require the ability to route people to internal (on your > LAN/WAN) web-based applications to URL's like http://intranet or > https://yourcompanyquickenbooks this is one way rather than having your > employees try and remember things like https://10.1.1.1 or maintaining a > bunch of lmosts (Win) and /etc/hosts (*nix) files on workstations and > laptops. Or if you have trouble frequently with your ISP's DNS servers > (Comcast or whoever) this is a simple way to go (caching). Make sure you > secure it and have it nicely hidden in a DMZ or on your internal net through. > One snag to keep in mind is that if you have your internal server acting > authoritatively for yourcompany.com and externally it is a different SOA you > could run into overlap issues. But in general the reason is that most > companies have stuff in their internal DNS they certainly do not want known > in the public and want to manipulate resolution internally for some things. > But if your business can live without the be > nefits or protection that running your DNS server internally brings, then > really no need to add another server to your admin duties unless you are > really excited to manage a DNS server or tackle some complex and uber-secure > Master/Slave architecture as a project. Hopes this helps. > Another reason would be to avoid your ISP's redirection when a host doesn't resolve. Comcast, for example, will send your request to their search page. This can confuse some people, or can potentially end up leading you to a malicious page (I don't trust their search results). It's also annoying because pretty much everything will resolve whether it is valid or not. Ryan Pugatch Systems Administrator, TripAdvisor ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] bsd mkfile command in centos - a wish
I enjoy the convenience of mkfile command found in Irix and BSD based distros. This command allows me to make files of any size; usage: mkfile [-nv] size[b|k|m|g] filename ... I've looked here and there and can't seem to find it for Centos. Any one have ideas on were I can get at least the source for it? I got something off a BSD ports page but its for BSD type systems. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
"Another reason would be to avoid your ISP's redirection when a host doesn't resolve. Comcast, for example, will send your request to their search page. This can confuse some people, or can potentially end up leading you to a malicious page (I don't trust their search results). It's also annoying because pretty much everything will resolve whether it is valid or not." Huge point Ryan. Just this weekend something happened yet again to Comcast's DNS or address mail.comcast.net. Their DNS was routing me to a server in Germany. I suspected an attack like the one they suffered in May of 2008 when Comcast's registrar info was accessed at ARIN and then the entire Internet was routing people to an HTML page when they entered http://www.comcast.net. Users might not think twice about entering their account info on a page that looks legitimate (but in reality is some site snagging logins of users). A non-caching DNS server internal on your LAN means that unless ARIN itself is hacked all your users go where they are supposed to (where "you" want them too, not where your ISP wants to send them). Way less chance of any kind of man in the middle attack or biased routing to the ISP's search like Ryan said. Larry Kemp Network Engineer U.S. Metropolitan Telecom, LLC Bonita Springs, FL USA -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Ryan Pugatch Sent: Monday, October 05, 2009 1:21 PM To: CentOS mailing list Subject: Re: [CentOS] DNS Serving - Why my own? Kemp, Larry wrote: > All great responses. > > Why would a small business want to run their own DNS? Independence and > control. > > If you want or require the ability to route people to internal (on your > LAN/WAN) web-based applications to URL's like http://intranet or > https://yourcompanyquickenbooks this is one way rather than having your > employees try and remember things like https://10.1.1.1 or maintaining a > bunch of lmosts (Win) and /etc/hosts (*nix) files on workstations and > laptops. Or if you have trouble frequently with your ISP's DNS servers > (Comcast or whoever) this is a simple way to go (caching). Make sure you > secure it and have it nicely hidden in a DMZ or on your internal net through. > One snag to keep in mind is that if you have your internal server acting > authoritatively for yourcompany.com and externally it is a different SOA you > could run into overlap issues. But in general the reason is that most > companies have stuff in their internal DNS they certainly do not want known > in the public and want to manipulate resolution internally for some things. > But if your business can live without the be > nefits or protection that running your DNS server internally brings, then > really no need to add another server to your admin duties unless you are > really excited to manage a DNS server or tackle some complex and uber-secure > Master/Slave architecture as a project. Hopes this helps. > Another reason would be to avoid your ISP's redirection when a host doesn't resolve. Comcast, for example, will send your request to their search page. This can confuse some people, or can potentially end up leading you to a malicious page (I don't trust their search results). It's also annoying because pretty much everything will resolve whether it is valid or not. Ryan Pugatch Systems Administrator, TripAdvisor ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
aurfal...@gmail.com wrote: > I enjoy the convenience of mkfile command found in Irix and BSD based > distros. > > This command allows me to make files of any size; > > usage: mkfile [-nv] size[b|k|m|g] filename ... > > I've looked here and there and can't seem to find it for Centos. > > Any one have ideas on were I can get at least the source for it? > > I got something off a BSD ports page but its for BSD type systems. dd's syntax is a little weird but it should do the job: dd if=/dev/zero of=your_filename bs=1K count=size_in_KB == Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
Hi Les, Yes, I do run dd to create Xen image files but was hoping to use a more elegant solution. Looks like I'll continue with dd but if any one else has some secrets, please share. On Oct 5, 2009, at 11:10 AM, Les Mikesell wrote: > aurfal...@gmail.com wrote: >> I enjoy the convenience of mkfile command found in Irix and BSD based >> distros. >> >> This command allows me to make files of any size; >> >> usage: mkfile [-nv] size[b|k|m|g] filename ... >> >> I've looked here and there and can't seem to find it for Centos. >> >> Any one have ideas on were I can get at least the source for it? >> >> I got something off a BSD ports page but its for BSD type systems. > > dd's syntax is a little weird but it should do the job: > > dd if=/dev/zero of=your_filename bs=1K count=size_in_KB > > == > Les Mikesell >lesmikes...@gmail.com > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
- aurfal...@gmail.com wrote: > Hi Les, > > Yes, I do run dd to create Xen image files but was hoping to use a > more elegant solution. > > Looks like I'll continue with dd but if any one else has some secrets, > > please share. > > Why not write a shell script called 'mkfile' that handles the CLI syntax like the real mkfile but simply uses dd under the hood? :-) --Tim ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
Hi, On Mon, 2009-10-05 at 11:14 -0700, aurfal...@gmail.com wrote: > Hi Les, > > Yes, I do run dd to create Xen image files but was hoping to use a > more elegant solution. > > Looks like I'll continue with dd but if any one else has some secrets, > please share. qemu-img create -f [size] is more elegant :) Kind Regards, Michel van Deventer ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
Hi Tim, You know, I didn't even think of that one. Thanks for the idea. On Oct 5, 2009, at 11:18 AM, Tim Nelson wrote: > - aurfal...@gmail.com wrote: >> Hi Les, >> >> Yes, I do run dd to create Xen image files but was hoping to use a >> more elegant solution. >> >> Looks like I'll continue with dd but if any one else has some >> secrets, >> >> please share. >> >> > > Why not write a shell script called 'mkfile' that handles the CLI > syntax like the real mkfile but simply uses dd under the hood? :-) > > --Tim > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] DNS Serving - Why my own?
> Can anyone explain why I might want to run my own DNS Server in-house? > I have a comcast business circuit and use their DNS servers and when I > need entries, I use GoDaddy where I buy my domains. Depends on the size of your organization. My at home setup has a few PCs & CentOS boxes so it's easy enough to manage host entries through the little gateway/router that I tweaked. The company I manage IT for OTOH, has close to 50 PCs & 6-7 servers (mixed Windows & CentOS) spread across three subnets and four offices. We use Active Directory so DNS resolution of our internal hosts is important. Two of the servers are also public facing (behind firewalls) so we have DNS setup to direct internal clients to the internal IP of the server & external clients access the public IP of the server. The internal DNS saves me and the staff from having to remember the mail server's IP and can just access it via the same name as the rest of the public. -- Drew "Nothing in life is to be feared. It is only to be understood." --Marie Curie ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Quick question regarding qoutas
If I export a mount with a quota via Samba, do the downstream win clients realize the drive size equal to the quota, or actual mount size? Working remotely while installing, I could test but it would save me time to know beforehand:) Thanks guys! jlc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
Hi Michel, Indeed, excellent idea! Thanks! On Oct 5, 2009, at 11:22 AM, Michel van Deventer wrote: > Hi, > > On Mon, 2009-10-05 at 11:14 -0700, aurfal...@gmail.com wrote: >> Hi Les, >> >> Yes, I do run dd to create Xen image files but was hoping to use a >> more elegant solution. >> >> Looks like I'll continue with dd but if any one else has some >> secrets, >> please share. > qemu-img create -f [size] is more elegant :) > > Kind Regards, > > Michel van Deventer > > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] How fast?
HI All, How fast does a a small DNS Server need to be? I will have about 10 servers and a few workstations. I have a few older Compaq PIII boxes with 1gb RAM each or I have faster P4 boxes. Same question as above, just a Vyatta type device, Firewalling? -ML ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] More about firewalling
Hi All, So before when I used PIX's for my employer, our traffic was statically routed to one IP and then the firewall decided if allowed/ denied and passed it on or dropped it. I have a Comcast business circuit with 13 IP's. The gateway device they provide is a 'pass through' device. They sent traffic for all 13 IP's my way. It just allows traffic through. So if I put in a device to firewall (like Ipcop or Vyatta or something) in front, say it has 3 NICS, how do I do that? If the Firewall has IP A and Traffic for IP B comes in how would IP A answer and decide if the traffic to IP B belonged? Without statically routing I am confused on how to accomplish this? How fast does this device need to be? Best, -Jason ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
On Mon, Oct 05, 2009, ML wrote: >HI All, > >How fast does a a small DNS Server need to be? I will have about 10 >servers and a few workstations. I have a few older Compaq PIII boxes >with 1gb RAM each or I have faster P4 boxes. Not fast at all. We have run them on Pentium 75s and 486 boxes without much RAM since the early 1990s. Bill -- INTERNET: b...@celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way Voice: (206) 236-1676 Mercer Island, WA 98040-0820 Fax:(206) 232-9186 Skype: jwccsllc (206) 855-5792 Never chastise a Windows user...just smile at them kindly as you would a disadvantaged child. WBM ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
At Mon, 5 Oct 2009 14:42:17 -0700 CentOS mailing list wrote: > > HI All, > > How fast does a a small DNS Server need to be? I will have about 10 > servers and a few workstations. I have a few older Compaq PIII boxes > with 1gb RAM each or I have faster P4 boxes. The PIII's should be more than fast enough, esp. if they are not doing anything else. > > Same question as above, just a Vyatta type device, Firewalling? Ditto. > > -ML > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
ML wrote: > HI All, > > How fast does a a small DNS Server need to be? I will have about 10 > servers and a few workstations. I have a few older Compaq PIII boxes > with 1gb RAM each or I have faster P4 boxes. Your watch is probably sufficient. nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] More about firewalling
ML wrote: > I have a Comcast business circuit with 13 IP's. The gateway device > they provide is a 'pass through' device. They sent traffic for all 13 > IP's my way. It just allows traffic through. So if I put in a device > to firewall (like Ipcop or Vyatta or something) in front, say it has 3 > NICS, how do I do that? If your just interested in firewalling (i.e. not NAT or something) then you can put the firewall in transparent bridging mode. > How fast does this device need to be? Depends on your throughput, and conns/sec. I use a Soekris at home for my ~10-30Mbps comcast line, that has a 500Mhz AMD Geode, and usually sits at less than 1% cpu (though I don't use it too often). I have OpenBSD running on it in routed mode for firewall+NAT. I would wager anything in the last 5-6 years would be more than enough. A good NIC is important too. Does linux's firewall support even have stuff like stateful failover these days? I've been using OpenBSD(vs linux at least) since 2004 for any firewalls that I deemed "serious", FreeBSD before that. I hate *BSD user land stuff, but I do like pf. nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
On Mon, 5 Oct 2009, nate wrote: > ML wrote: >> HI All, >> >> How fast does a a small DNS Server need to be? I will have about 10 >> servers and a few workstations. I have a few older Compaq PIII >> boxes with 1gb RAM each or I have faster P4 boxes. > > Your watch is probably sufficient. Or your phone... It wasn't THAT long ago that "monster" servers ran 85MHz SPARC 4d's. (We had a cool 12-proc unit that auto-failed one cpu so I could say with a straight face that I administered the only 11-processor web server I knew...) Seriously, you'd have to look long and hard to find a computer that didn't have the horsepower to host DNS, DHCP, NTP and static HTTP services. The bigger issue is ensuring that an older computer has enough disk space to house a modern distro and enough RAM to run modern kernels -- and even then you can tighten things up if you're willing to work with a speciality distro. -- Paul Heinlein <> heinl...@madboa.com <> http://www.madboa.com/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish - SOLVED
Hi all, As I sat down to write it and started to struggle a bit (of course), I found this, tested and it works. http://ca-linux.org/?p=58 Its a bash script for mkfile. I'm always testing fs/net perf and like the flex of having a simple command like mkfile. On Oct 5, 2009, at 11:22 AM, Michel van Deventer wrote: > Hi, > > On Mon, 2009-10-05 at 11:14 -0700, aurfal...@gmail.com wrote: >> Hi Les, >> >> Yes, I do run dd to create Xen image files but was hoping to use a >> more elegant solution. >> >> Looks like I'll continue with dd but if any one else has some >> secrets, >> please share. > qemu-img create -f [size] is more elegant :) > > Kind Regards, > > Michel van Deventer > > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
At Mon, 5 Oct 2009 15:34:38 -0700 (PDT) CentOS mailing list wrote: > > On Mon, 5 Oct 2009, nate wrote: > > > ML wrote: > >> HI All, > >> > >> How fast does a a small DNS Server need to be? I will have about 10 > >> servers and a few workstations. I have a few older Compaq PIII > >> boxes with 1gb RAM each or I have faster P4 boxes. > > > > Your watch is probably sufficient. > > Or your phone... > > It wasn't THAT long ago that "monster" servers ran 85MHz SPARC 4d's. > (We had a cool 12-proc unit that auto-failed one cpu so I could say > with a straight face that I administered the only 11-processor web > server I knew...) > > Seriously, you'd have to look long and hard to find a computer that > didn't have the horsepower to host DNS, DHCP, NTP and static HTTP > services. > > The bigger issue is ensuring that an older computer has enough disk > space to house a modern distro and enough RAM to run modern kernels -- > and even then you can tighten things up if you're willing to work with > a speciality distro. Right. You'll *have* to get at least a socket-7 motherboard with a K6 processor and DIMM RAM sockets and PCI bus, if only because getting old-school SIMMs is hard these days. And getting a distro with install kernels (much less stock kernels) for less than a 586 is getting hard, unless you opt for something like Slackware or Linux From Scratch. In practice any still working minimually i686 system with a reasonable amount of RAM (for just a DNS server, 256meg RAM and a 20-40 GIG IDE disk, would probably even be enough to install, say, CentOS). I recently installed CentOS 5.2 on a old Dell box (PII or PIII vintage) with an 18gig disk. No X11. Just DNS, DHCPD, PPPD, Samba, CUPS, and little else. This little box is just being used as a dialup 'router'. It is jacked into a wireless 'router', but the wireless router is just being used as an accesspoint and Ethernet switch (this is a home setup -- broadband is not presently available, only dialup internet). > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
Am Montag, den 05.10.2009, 20:22 +0200 schrieb Michel van Deventer: > Hi, > > On Mon, 2009-10-05 at 11:14 -0700, aurfal...@gmail.com wrote: > > Hi Les, > > > > Yes, I do run dd to create Xen image files but was hoping to use a > > more elegant solution. > > > > Looks like I'll continue with dd but if any one else has some secrets, > > please share. > qemu-img create -f [size] is more elegant :) > Or even more fancy use virt-install to do everything in one command line to set up virtual machines. Chris financial.com AG Munich head office/Hauptsitz München: Maria-Probst-Str. 19 | 80939 München | Germany Frankfurt branch office/Niederlassung Frankfurt: Messeturm | Friedrich-Ebert-Anlage 49 | 60327 Frankfurt | Germany Management board/Vorstand: Dr. Steffen Boehnert | Dr. Alexis Eisenhofer | Dr. Yann Samson | Matthias Wiederwach Supervisory board/Aufsichtsrat: Dr. Dr. Ernst zur Linden (chairman/Vorsitzender) Register court/Handelsregister: Munich – HRB 128 972 | Sales tax ID number/St.Nr.: DE205 370 553 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] how can i configure linux as ppp
Hi My DSL modem has problem. I would like to use linux as ppp. How can I configure it? Thank you __ Ask a question on any topic and get answers from real people. Go to Yahoo! Answers and share what you know at http://ca.answers.yahoo.com___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
Hi Chris, I'm actually just needing to create files of various sizes, not to be used in Xen tho. More for testing I/O chars of various thing. On Oct 5, 2009, at 4:11 PM, Christoph Maser wrote: > Am Montag, den 05.10.2009, 20:22 +0200 schrieb Michel van Deventer: >> Hi, >> >> On Mon, 2009-10-05 at 11:14 -0700, aurfal...@gmail.com wrote: >>> Hi Les, >>> >>> Yes, I do run dd to create Xen image files but was hoping to use a >>> more elegant solution. >>> >>> Looks like I'll continue with dd but if any one else has some >>> secrets, >>> please share. >> qemu-img create -f [size] is more elegant :) >> > > Or even more fancy use virt-install to do everything in one command > line > to set up virtual machines. > > Chris > > > financial.com AG > > Munich head office/Hauptsitz München: Maria-Probst-Str. 19 | 80939 > München | Germany > Frankfurt branch office/Niederlassung Frankfurt: Messeturm | > Friedrich-Ebert-Anlage 49 | 60327 Frankfurt | Germany > Management board/Vorstand: Dr. Steffen Boehnert | Dr. Alexis > Eisenhofer | Dr. Yann Samson | Matthias Wiederwach > Supervisory board/Aufsichtsrat: Dr. Dr. Ernst zur Linden (chairman/ > Vorsitzender) > Register court/Handelsregister: Munich – HRB 128 972 | Sales tax ID > number/St.Nr.: DE205 370 553 > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] how can i configure linux as ppp
At Mon, 5 Oct 2009 16:21:59 -0700 (PDT) CentOS mailing list wrote: > > > > Hi > > My DSL modem has problem. I would like to use linux as ppp. > How can I configure it? Well, you need ppp and wvdial installed (should be on your install disk(s)). With these installed, you can configure it with system-config-network -- select "New", then "Modem connection" and follow the steps. > > Thank you > > > > __ > Ask a question on any topic and get answers from real people. Go to Yahoo! > Answers and share what you know at http://ca.answers.yahoo.com > MIME-Version: 1.0 > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
Robert Heller wrote: > > Right. You'll *have* to get at least a socket-7 motherboard with a K6 > processor and DIMM RAM sockets and PCI bus, if only because getting > old-school SIMMs is hard these days. And getting a distro with install > kernels (much less stock kernels) for less than a 586 is getting hard, > unless you opt for something like Slackware or Linux From Scratch. In > practice any still working minimually i686 system with a reasonable > amount of RAM (for just a DNS server, 256meg RAM and a 20-40 GIG IDE > disk, would probably even be enough to install, say, CentOS). I > recently installed CentOS 5.2 on a old Dell box (PII or PIII vintage) > with an 18gig disk. No X11. Just DNS, DHCPD, PPPD, Samba, CUPS, and > little else. This little box is just being used as a dialup 'router'. > It is jacked into a wireless 'router', but the wireless router is just > being used as an accesspoint and Ethernet switch (this is a home setup > -- broadband is not presently available, only dialup internet). > > > > I replaced a modern retail firewall/router with a 500 Mhz Celeron with 512K RAM (Intel 810e motherboard) and a PCI dual port ethernet card of because the 'modern' POS turnkey couldn't handle 100 mbits/second through the WAN interface. The 500Mhz celeron with CentOS5 handled that plus DNS and DHCP without ever cracking 1% CPU usage. -- Benjamin Franz ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
aurfal...@gmail.com wrote: > Hi Chris, > > I'm actually just needing to create files of various sizes, not to be > used in Xen tho. > > More for testing I/O chars of various thing. Just recall your last dd command back to the command line (ctl-r dd) and edit the number you put at the end for the 'count' argument. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bsd mkfile command in centos - a wish
well, i actually found this; http://ca-linux.org/?p=58 hope its helpful to others. its a bash script doing dd, but in a more friendly way. On Oct 5, 2009, at 4:35 PM, Les Mikesell wrote: > aurfal...@gmail.com wrote: >> Hi Chris, >> >> I'm actually just needing to create files of various sizes, not to be >> used in Xen tho. >> >> More for testing I/O chars of various thing. > > Just recall your last dd command back to the command line (ctl-r dd) > and > edit the number you put at the end for the 'count' argument. > > -- > Les Mikesell >lesmikes...@gmail.com > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
On Oct 5, 2009, at 8:34 PM, Benjamin Franz wrote: > Robert Heller wrote: >> >> Right. You'll *have* to get at least a socket-7 motherboard with a >> K6 >> processor and DIMM RAM sockets and PCI bus, if only because getting >> old-school SIMMs is hard these days. And getting a distro with >> install >> kernels (much less stock kernels) for less than a 586 is getting >> hard, >> unless you opt for something like Slackware or Linux From Scratch. >> In >> practice any still working minimually i686 system with a reasonable >> amount of RAM (for just a DNS server, 256meg RAM and a 20-40 GIG IDE >> disk, would probably even be enough to install, say, CentOS). I >> recently installed CentOS 5.2 on a old Dell box (PII or PIII vintage) >> with an 18gig disk. No X11. Just DNS, DHCPD, PPPD, Samba, CUPS, and >> little else. This little box is just being used as a dialup >> 'router'. >> It is jacked into a wireless 'router', but the wireless router is >> just >> being used as an accesspoint and Ethernet switch (this is a home >> setup >> -- broadband is not presently available, only dialup internet). >> >> >> >> > > I replaced a modern retail firewall/router with a 500 Mhz Celeron with > 512K RAM (Intel 810e motherboard) and a PCI dual port ethernet card > of > because the 'modern' POS turnkey couldn't handle 100 mbits/second > through the WAN interface. The 500Mhz celeron with CentOS5 handled > that > plus DNS and DHCP without ever cracking 1% CPU usage. That proves 614K should be enough for anybody. Giovanni P. Tirloni tirl...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
>> I replaced a modern retail firewall/router with a 500 Mhz Celeron >> with >> 512K RAM (Intel 810e motherboard) and a PCI dual port ethernet card >> of >> because the 'modern' POS turnkey couldn't handle 100 mbits/second >> through the WAN interface. The 500Mhz celeron with CentOS5 handled >> that >> plus DNS and DHCP without ever cracking 1% CPU usage. > > That proves 614K should be enough for anybody. ah *snap*! -ML ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
ML wrote: > HI All, > > How fast does a a small DNS Server need to be? I will have about 10 > servers and a few workstations. I have a few older Compaq PIII boxes > with 1gb RAM each or I have faster P4 boxes. > > Same question as above, just a Vyatta type device, Firewalling? > I ran authoritative DNS for about 50 domains off a p1 100mhz 512MB box for years, but it was running a much older kernel. I'd consider RELIABILITY far more important than speed.key to DNS reliablity is to have an offsite backup for any authoritative DNS.my homebrew DNS network involves my home box on my DSL, my friend's home box who is in a different LATA and on a different ISP, and a proper server colocated in a data center, in yet a different city on a different backbone. between these three systems, we're pretty damn robust for something completely free. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
On 10/5/09, Robert Heller wrote: > At Mon, 5 Oct 2009 15:34:38 -0700 (PDT) CentOS mailing list > wrote: >> >> How fast does a a small DNS Server need to be? I will have about 10 >> >> servers and a few workstations. I have a few older Compaq PIII >> >> boxes with 1gb RAM each or I have faster P4 boxes. > little else. This little box is just being used as a dialup 'router'. > It is jacked into a wireless 'router', but the wireless router is just > being used as an accesspoint and Ethernet switch (this is a home setup > -- broadband is not presently available, only dialup internet). Do any of the cell phone operators in your area use the GSM technology? If so, they may offer HSDPA Internet service too. I would like to ditch our ADSL (the only wired broadband available in our rural subdivision at this time), to get rid of the infrastructure problems and prefer WiMAX, which isn't available where we live (Cali was one of the first cities to have WiMAX). Netgear makes an HSDPA to Ethernet modem, but I don't think they sell them in the USA or down here. If you can get HSDPA, that would probably be a huge speed increase for your home network. The HSDPA speed at our house, at this time, is slower than our ADSL, but if I had one of those Netgear modems, we'd make the switch. The 3 cell phone operators in Colombia are all using GSM now and all 3 offer HSDPA Internet access, but their normal method is a USB device that only runs on Windows or a Mac, which is only good for one box and not for a Linux box. The Netgear HSDPA to Ethernet modem would eliminate that problem. Possibly the CDMA cell phone operators in your area also offer Internet access? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How fast?
On Mon, Oct 05, 2009 at 05:19:17PM -0700, John R Pierce wrote: > > I'd consider RELIABILITY far more important than speed.key to DNS > reliablity is to have an offsite backup for any authoritative DNS.my > homebrew DNS network involves my home box on my DSL, my friend's home > box who is in a different LATA and on a different ISP, and a proper > server colocated in a data center, in yet a different city on a > different backbone. between these three systems, we're pretty damn > robust for something completely free. This is obviously offtopic, but I use zoneedit.com for secondary DNS, hosting the primary for my domain at my home (behind a DSL connection). I have fairly low bandwidth requirements for DNS lookups, so my domain has always been free of charge. I've never had any problems with their service. If you use them as slaves, you can have pretty much any configuration (and complete control) you want for your zone. --keith -- kkel...@speakeasy.net pgpTzQD47kERF.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
