HI All,
With my new firewall in place, it has opened my eyes to how much
traffic gets blocked in a single day and also what are the most active
rules. I get *a lot* of requests for port 22.
How does one switch ssh ports? What is a good port to use? What
ramifications does it have when I nee
Hi All,
How does one best turn of X-Windows? I dont need it, ssh works just
fine for me.
I seem to recall it was complicated and since I know enough to do my
stuf and not well versed yet in fixing things I break, I dont want to
blow this up.
Best,
-ML
_
On Sat, 2009-10-24 at 05:56 -0700, ML wrote:
> HI All,
>
> With my new firewall in place, it has opened my eyes to how much
> traffic gets blocked in a single day and also what are the most active
> rules. I get *a lot* of requests for port 22.
>
> How does one switch ssh ports? What is a goo
> How does one switch ssh ports? What is a good port to use? What
> ramifications does it have when I need to ssh in? Is it as simple as
> ssh u...@hots:port?
>
In /etc/ssh/sshd_config replace "port 22" with "port 1024) you like>"
Then configure your ssh clients accordingly.
I was havin
David Suhendrik wrote:
> Still waiting for DVD 5.4 64 bit
>
Have you been looking, or just expecting a DVD to show up in your
mailbox?? Go to the CentOS homepage, http://www.centos.org/ .
At the top of the page you'll see CentOS Download Information.
Click on "CentOS-5 ISOs", then on "x86_64".
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
thus ML spake:
> Hi All,
>
> How does one best turn of X-Windows? I dont need it, ssh works just
> fine for me.
>
> I seem to recall it was complicated and since I know enough to do my
> stuf and not well versed yet in fixing things I break, I do
> How does one best turn of X-Windows? I dont need it, ssh works just
> fine for me.
>
Just boot the computer into runlevel 3.
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On 24/10/2009, at 11:26 PM, ML wrote:
> HI All,
>
> With my new firewall in place, it has opened my eyes to how much
> traffic gets blocked in a single day and also what are the most active
> rules. I get *a lot* of requests for port 22.
Look in /etc/ssh/sshd_config
You can specify the port the
On 24/10/2009, at 11:40 PM, Miguel Medalha wrote:
>
>> How does one switch ssh ports? What is a good port to use? What
>> ramifications does it have when I need to ssh in? Is it as simple as
>> ssh u...@hots:port?
>>
>
> In /etc/ssh/sshd_config replace "port 22" with "port port
> (> 1024) you li
There has something useful for you:
The CentOS 5.4 ISO DVD path is:
DVD:
http://mirror.centos.org/centos/5.4/isos/i386/CentOS-5.4-i386-bin-DVD.torrent
http://mirror.centos.org/centos/5.4/isos/x86_64/CentOS-5.4-x86_64-bin-DVD.torrent
Hope it would help you~~~
On Fri, Oct 23, 2009 at 11:07 PM
Change the port statement in /etc/ssh/sshd_config and restart sshd
Alternatively, you can make a port direction on your firewall, say,
from TCP port 1234 to internal IP 22. Then, you don't need to change
the server config.
My 2 cents.
Stephen WONG @ Hong Kong
On Sat, Oct 24, 2009 at 9:23 PM,
David Suhendrik wrote:
> Still waiting for DVD 5.4 64 bit
There's a couple of mirrors that have it. I looked through several .edu site -
I think RIT had one.
mark
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ML wrote:
> HI All,
>
> With my new firewall in place, it has opened my eyes to how much
> traffic gets blocked in a single day and also what are the most active
> rules. I get *a lot* of requests for port 22.
>
> How does one switch ssh ports? What is a good port to use? What
> ramificatio
ML wrote:
> Hi All,
>
> How does one best turn of X-Windows? I dont need it, ssh works just
> fine for me.
Not sure what you mean. You could edit /etc/inittab, and have your system run
at runlevel 3, rather than 5.
Or you could uninstall Xorg.
mark
___
Do you mean upgrade the CentOS from the ISO?
On Fri, Oct 23, 2009 at 5:24 AM, Jonathan Moore wrote:
> Good afternoon folks.
>
> Earlier today, I started upgrading a few of our servers to 5.4 based
> on input from the list. So far, all has gone well. I have about 6
> servers (not very many, bu
>> How does one switch ssh ports? What is a good port to use? What
>> ramifications does it have when I need to ssh in? Is it as simple as
>> ssh u...@hots:port?
>>
>
> In /etc/ssh/sshd_config replace "port 22" with "port port
> (> 1024) you like>"
>
> Then configure your ssh clients accordingly.
> Pretty much everything you need to know about SSH is on the Wiki here:
>
> http://wiki.centos.org/HowTos/Network/SecuringSSH
>
> Why don't people use the Wiki? These same topics come up over and over
> again, and no one ever refers to the resources available on the Wiki?
I dont think it is well
Stephen Wong wrote:
> Change the port statement in /etc/ssh/sshd_config and restart sshd
>
> Alternatively, you can make a port direction on your firewall, say,
> from TCP port 1234 to internal IP 22. Then, you don't need to change
> the server config.
One thing to consider: an attacker with a c
One more thing - you might want to look at authfail. After a number of attempts
to log in, it will add firewall rules to block that IP address.
mark
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Ned,
> Pretty much everything you need to know about SSH is on the Wiki here:
>
> http://wiki.centos.org/HowTos/Network/SecuringSSH
>
> Why don't people use the Wiki? These same topics come up over and over
> again, and no one ever refers to the resources available on the Wiki?
Thanks for the lin
Mark,
> One more thing - you might want to look at authfail. After a number
> of attempts
> to log in, it will add firewall rules to block that IP address.
Thanks for the advice!
I will google it.
-ML
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http:/
ML wrote:
>>> How does one switch ssh ports? What is a good port to use? What
>>> ramifications does it have when I need to ssh in? Is it as simple as
>>> ssh u...@hots:port?
>>>
>> In /etc/ssh/sshd_config replace "port 22" with "port > port
>> (> 1024) you like>"
>>
>> Then configure your ssh clie
On 25/10/2009, at 12:10 AM, ML wrote:
>
>>> How does one switch ssh ports? What is a good port to use? What
>>> ramifications does it have when I need to ssh in? Is it as simple as
>>> ssh u...@hots:port?
>>>
>>
>> In /etc/ssh/sshd_config replace "port 22" with "port > port
>> (> 1024) you like>"
>>> In /etc/ssh/sshd_config replace "port 22" with "port >> port
>>> (> 1024) you like>"
>>>
>>> Then configure your ssh clients accordingly.
>>
>> So I added Port 2977 Under Host *
>>
>> So I have:
>> Host *
>> Port 2977
>>
>> I rebooted and I get a connection refused now when I try to connect.
>
As mentioned previously, requiring certificates, and not allowing
interactive logins, is safest.
But even if you decide to allow interactive logins, there are things
you SHOULD do.
Disable admin/root login.
Update sshd so that only named users can login via SSH, all other
users that might
hi,
i just let you know that xen not working properly in centos 5.4 there
are upstream fix for this, but for those who use xen it's better to wait
until centos release updates for 5.4 otherwise xen's domU won't start.
--
Levente "Si vis pacem para bellum!"
On Sat, 2009-10-24 at 07:17 -0700, ML wrote:
> >>> In /etc/ssh/sshd_config replace "port 22" with "port >>> port
> >>> (> 1024) you like>"
> >>>
> >>> Then configure your ssh clients accordingly.
> >>
> >> So I added Port 2977 Under Host *
> >>
> >> So I have:
> >> Host *
> >> Port 2977
> >>
> >>
> >
> > I then did: service sshd restart
> >
> >
>
> Have you restarted the ssh daemon after changing the config file?
>
Ooops, I really need to not post to the mailing list when I am tired.
My second question still stands, Also, have you run nmap on your host to
verify that the port is
>>> I then did: service sshd restart
>>>
>>>
>>
>
>
>> Have you restarted the ssh daemon after changing the config file?
>>
>
> Ooops, I really need to not post to the mailing list when I am tired.
>
> My second question still stands, Also, have you run nmap on your
> host to
> verify that the
On 10/24/2009 07:43 AM, Farkas Levente wrote:
> i just let you know that xen not working properly in centos 5.4 there
> are upstream fix for this, but for those who use xen it's better to wait
> until centos release updates for 5.4 otherwise xen's domU won't start.
>
I think I saw the issue yo
On 10/24/2009 06:55 PM, Gordon Messmer wrote:
> On 10/24/2009 07:43 AM, Farkas Levente wrote:
>> i just let you know that xen not working properly in centos 5.4 there
>> are upstream fix for this, but for those who use xen it's better to wait
>> until centos release updates for 5.4 otherwise xen's
Gordon Messmer wrote:
> On 10/24/2009 07:43 AM, Farkas Levente wrote:
>
>> i just let you know that xen not working properly in centos 5.4 there
>> are upstream fix for this, but for those who use xen it's better to wait
>> until centos release updates for 5.4 otherwise xen's domU won't start.
>
Hi!
As far as I can see there is no kvm in the base repository but
the older version 36 in CentOS-Extras. Version 83 that belongs
to 5.4 is only found on the install DVD and CD-Set.
So it's different when installing kvm later with yum which results
in kvm-36 than choosing 'Virtualization' on DVD i
On Sat, Oct 24, 2009 at 11:22 AM, Brian Schueler wrote:
> Hi!
>
> As far as I can see there is no kvm in the base repository but
> the older version 36 in CentOS-Extras. Version 83 that belongs
> to 5.4 is only found on the install DVD and CD-Set.
> So it's different when installing kvm later with
On 24-Oct-2009 Oliver Ransom wrote:
> I don't think there are any ramifications/disadvantages of running the
> SSH daemon on a non standard port.
Running sshd on a non-standard port is highly useful ; I always have 2
seperate sshd instances. One on 22 and one on 222. This way, if I muck up a
On Sat, 24 Oct 2009, Philip Gwyn wrote:
> On 24-Oct-2009 Oliver Ransom wrote:
>> I don't think there are any ramifications/disadvantages of running the
>> SSH daemon on a non standard port.
Unless I want to sftp. It always looks for port 22; if I do:
sftp SERVER
It will deny me if SERVER is any
2009/10/24 Gilbert Sebenste :
> It will deny me if SERVER is anything but port 22. Doing a man sftp yields
> no help on how to solve that. Any ideas?
>From memory, try -o Port=222
Ben
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Hello,
I thought I'd wait a little while before upgrading to 5.4, but am
running into the following errors:
-> Finished Dependency Resolution
lvm2-2.02.46-8.el5.i386 from base has depsolving problems
--> Missing Dependency: device-mapper >= 1.02.32-1 is needed by
package lvm2-2.02.46-8.el5.i3
On Sat, 24 Oct 2009, Benjamin Donnachie wrote:
> 2009/10/24 Gilbert Sebenste :
>> It will deny me if SERVER is anything but port 22. Doing a man sftp yields
>> no help on how to solve that. Any ideas?
>
>> From memory, try -o Port=222
>
> Ben
Thanks to all who responded. That's what I was looking
On 10/23/2009 06:10 PM, Jonathan Moore wrote:
>
> What I was really looking for was a little more detail on exactly what
> I *must* have from the mirror to successfully upgrade.
>
If you want to download the minimum number of packages, the easiest
answer is: use a proxy server.
export http_p
Rohan Gilchrist wrote:
> Hello,
>
> I thought I'd wait a little while before upgrading to 5.4, but am
> running into the following errors:
>
> -> Finished Dependency Resolution
> lvm2-2.02.46-8.el5.i386 from base has depsolving problems
> --> Missing Dependency: device-mapper >= 1.02.32-1 is n
Robert wrote:
> 1. Did you follow the procedure in the 5.4 Release Notes (repeated in
> the release announcement)?
See, this is a problem I shouldn't have to know about special
procedures in release notes to be able to do `yum update` at any
arbitrary time
what about users who aren't
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