Re: [WISH] Linux kernel as drop-in replacement in FreeBSD?

[Gustavo De Nardin]

Hello.

On 07/02/06, Kris Kennaway <[EMAIL PROTECTED]> wrote:
> On Tue, Feb 07, 2006 at 10:48:05PM +0100, cpghost wrote:
> > since Linux' support for some hardware is better than FreeBSD's,
> > it would be nice to have an *optional* way of running a FreeBSD
> > system (userland, including all third party programs) on top
> > of the Linux kernel.
> >
> There's a debian project to do this, but it's not likely anything that
> will be merged into FreeBSD (let alone available as a port).

It is my understanding that the Debian project is the opposite
(running GNU/Linux userland on top of a FreeBSD kernel) of what he
asked: .

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Re: boot up notification

[Gustavo De Nardin]

Jim Pazarena wrote:
> I would like one of my servers to send me an email when
> it boots. I envision a script in rc.conf to do this.
> 
> Is there an easier way, or an automatic system which can do this?

  You could set up a cronjob to run at '@reboot':
$ crontab -l
@reboot echo | mail -s "The eagle has landed" root

  See crontab(5).
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Re: Booting FreeBSD-5.3 from NTLDR

[Gustavo De Nardin]

On Sun, 30 Jan 2005 10:47:41 +0400, Rakhesh Sasidharan
<[EMAIL PROTECTED]> wrote:
> Are there any issues in booting FreeBSD using NTLDR? My machine has
> Windows XP, Fedora Core 3, and FreeBSD-5.3, and while I know I can use
> GRUB to boot FreeBSD, I want to try booting it using NTLDR. Just for
> kicks -- its something I haven't tried so far. :))

  I recommend using BootPart: .

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Re: Using unix mail with maildir format

[Gustavo De Nardin]

On 04/07/05, Vince <[EMAIL PROTECTED]> wrote:
> Mave a look at the nail port "mail/nail"
> It can/does have a mail type interface and reads maildir.

Thanks, that's the MUA I was looking for for a long while. :]

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Re: SSH and gigabit NICs

[Gustavo De Nardin]

On 08/07/05, Alex Zbyslaw <[EMAIL PROTECTED]> wrote:
> Unfortunately there seems to be no way to turn off the encryption for
> SSH, which would be the easiest test.

Well, looking at /usr/src/crypto/openssh/cipher.c, there is a "none"
in struct Cipher. But specifying 'none' in Ciphers in sshd_config, I
get "Bad SSH2 cipher spec 'none'." trying to start sshd.

Does anyone know if/how the "none" Cipher is really available? I need
ssh only for authentication when transfering backups, and encryption
makes a difference in transfer speed on slow machines...

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Re: SSH and gigabit NICs

[Gustavo De Nardin]

On 07/07/05, Alex Zbyslaw <[EMAIL PROTECTED]> wrote:
> Does anyone have a clue what might be going on?

Dunno, but you might take a look at /usr/ports/security/hpn-ssh/:

--- pkg-descr ---
High Performance Enabled SSH/SCP
from the Pittsburgh Supercomputing Center

hpn-ssh is a version of OpenSSH modified to support high-performance
bulk transfers (such as with scp or rsync).  These modifications are
required because:

  SCP and the underlying SSH protocol is network performance limited by
  statically defined internal flow control buffers. These buffers often
  end up acting as a brake on the network throughput of SCP especially
  on long and wide paths. Modifying the ssh code to allow the flow
  control buffers to be defined at run time eliminates this bottleneck.

WWW: http://www.psc.edu/networking/projects/hpn-ssh/

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Re: why CDROM operations cause system to be slow and HD operations do not

[Gustavo De Nardin]

On 13/07/05, Yuri <[EMAIL PROTECTED]> wrote:
> When I read something from CDROM my system gets visibly slow and HD
> reads/writes do not have the same effect.

By default:
hw.ata.ata_dma: 1<--- affects HD
hw.ata.atapi_dma: 0  <--- affects CD

So:
# atacontrol mode 0
Master = UDMA100   <--- HD
Slave  = BIOSPIO
# atacontrol mode 1
Master = BIOSPIO   <--- CD
Slave  = PIO4

Put 'hw.ata.atapi_dma=1' in /boot/loader.conf to get the CDROM using
DMA on the next boot; use atacontrol to turn DMA mode at runtime.

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Re: DNS service with a SQL backend

[Gustavo De Nardin]

On 20/07/05, Bruno Gallant <[EMAIL PROTECTED]> wrote:
> I looked around the ports to find powerdns, but I don't know if it's
> good or not.

There is also dns/bind9-dlz ().
Supports many database backends. (I never used it, though.)


> Is there a port or something already available that can convert DNS
> data stored in sql into the proper format for BIND, or another
> software with all included?

Don't you mean the other way (BIND -> SQL)?

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Re: ssh-copy-id

[Gustavo De Nardin]

On 13/07/07, Pollywog <[EMAIL PROTECTED]> wrote:

Since FreeBSD does not have ssh-copy-id as part of the OpenSSH package, what
is the best way to copy a public key to an account on another host?  Some
Linuxes (Debian and Ubuntu) have a ssh-copy-id script for this in their
OpenSSH packages.


Well dunno about "best way", but I used to do something like this..:
ssh $remote 'mkdir -m 600 .ssh && cat - >>.ssh/authorized_keys'
<~/.ssh/id_rsa.pub

But of course ssh-copy-id is much smarter.

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gconcat on existing filesystem

[Gustavo De Nardin]

Hello.

Is it expected that 'gconcat create ...' on an existing device with
populated filesystem keeps all existing data? That is, is it expected
behavior that something like 'umount /dev/ad0s3', 'gconcat create data
/dev/ad0s3', 'mount /dev/concat/data /mnt' works, or is it just luck?

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Re: Which is the best PDF utility ?

[Gustavo De Nardin]

Hi.

2005/4/26, edward <[EMAIL PROTECTED]>:
> Just wanted to know which is, according to you, the best utility to read
> PDF files. I notice the Acrobat7 port is mentioned as "broken" in the
> notes. Which program (not necessarily Adobe) would be the best
> alternative for everyday PDF reading ? Oh, almost forgot, I use KDE.

So, haven't you tried Kpdf from KDE 3.4? It's the best X-windows PDF
reader I've used.
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Re: Pine

[Gustavo De Nardin]

2005/5/19, Charles Lamb <[EMAIL PROTECTED]>:
> 
> What is a good alternative to Pine?  It would seem it is nolonger
> available for freebsd?

There's Cone (/usr/ports/mail/cone/). I found it similar to Pine. Much
easier to use than Mutt.
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Re: Crontab for different ime zones

[Gustavo De Nardin]

2009/5/24 GT :
> Late entry to this thread, but...
>
> I thought I had found an answer to this; at present I think I might have
> been mistaken.
>
> My crontab has about a dozen jobs that need to run in
> TZ=America/New_York, and another dozen that ideally want
> TZ=Australia/Sydney... the server default is America/Chicago.

[snip]

>    TZ=Australia/Sydney
>    * 13 * * * date >> /home/mysite/public_html/tmp/log.txt 2>&1
>
> cron will NOT run the script... I bet it will wait until 13:00 CHICAGO
> time.
>
> I have a feeling that I am missing something relatively simple - at
> which point my dream of a super-cron will be realised and the stupidity
> of DST can be ignored (as it ought to be... ). I also bet that someone
> else has worked this out already, somewhere in the internets tubes...
> but i have been unable to find it.

I don't think the regular cron works like that. Check out
ports/sysutils/fcron (man 5 fcrontab .. OPTIONS .. timezone ..).

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Re: Lingua franca file system Linux-NetBSD-FreeBSD?

[Gustavo De Nardin]

On 24 August 2010 06:53, Thomas Mueller  wrote:
> What is the best choice for a file system that can be read, and safely 
> written to, by Linux, NetBSD and FreeBSD?

I've been trying NTFS(-3g). It's been going well, with even occasional
Windows thrown in the mix. But it is very slow, mostly, I believe, due
to being an userspace implementation. And I do keep backups.


> With NetBSD through 5.1_RC3, I got "unsupported inode size" when trying to 
> mount Linux ext2fs partition from NetBSD.

I've tested ext2/3 in the past, found it very risky to mix OSs (Linux
and FreeBSD only, though). FreeBSD's Ext2 seemed very lacky regarding
new FS features. I wouldn't risk it.


> There is the obvious possibility of using msdos (FAT32); I could run FreeDOS 
> on such a partition as well as using the partition to share data between 
> Linux, NetBSD and FreeBSD, and FreeDOS too.  Drawback is some problems 
> getting long file names straight, and lack of case sensitivity.  But maybe 
> FAT32 is the safest choice?

IMHO NTFS should be better, also, NTFS-3G has an (opensource
friendly?) company behind it:
http://www.tuxera.com/community/ntfs-3g-download/


> Linux, NetBSD and FreeBSD are supposed to be able to read and write NTFS 
> partition, but I see from a very recent thread on this list, subject "Re: 
> External HD", that writing to NTFS partition is very dangerous, and I figure 
> that would be also true for NetBSD and Linux, and any other 
> non-MS-Windows-NT-line OS that might have support for NTFS.

I haven't seen recent horror stories about NTFS use on Linux, since
the userspace/fuse implementations. Haven't had any problemas myself
too. Except for a hiccup: one of the implementations (can't remember
which) would semi-silently ignore files/paths for which it couldn't
parse the charset, that it, it didn't copy the files/dirs, also didn't
error, just spit some mumbling in dmesg (this was on Linux also). So
beware of your FS charset.

As Joshua Isom mentioned, there's also UDF. But IIRC FreeBSD wasn't
able to write on it when I checked. Also slow compared to native FSs
(same league or worse than the userspace NTFSs). I'd love to go with
UDF, if only it had better support/performance.

And don't underestimate your backups.

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Re: Lingua franca file system Linux-NetBSD-FreeBSD?

[Gustavo De Nardin]

On 24 August 2010 20:48, Gustavo De Nardin  wrote:
> On 24 August 2010 06:53, Thomas Mueller  wrote:
>> What is the best choice for a file system that can be read, and safely 
>> written to, by Linux, NetBSD and FreeBSD?
>
> I've been trying NTFS(-3g). It's been going well, with even occasional
> Windows thrown in the mix. But it is very slow, mostly, I believe, due
> to being an userspace implementation. And I do keep backups.

I thought I must correct myself: the problem is not exaclt it being
slow, but rather using a lot of CPU. On non fast machines, you may
easily be bound by the CPU, not I/O.


>> With NetBSD through 5.1_RC3, I got "unsupported inode size" when trying to 
>> mount Linux ext2fs partition from NetBSD.
>
> I've tested ext2/3 in the past, found it very risky to mix OSs (Linux
> and FreeBSD only, though). FreeBSD's Ext2 seemed very lacky regarding
> new FS features. I wouldn't risk it.
>
>
>> There is the obvious possibility of using msdos (FAT32); I could run FreeDOS 
>> on such a partition as well as using the partition to share data between 
>> Linux, NetBSD and FreeBSD, and FreeDOS too.  Drawback is some problems 
>> getting long file names straight, and lack of case sensitivity.  But maybe 
>> FAT32 is the safest choice?
>
> IMHO NTFS should be better, also, NTFS-3G has an (opensource
> friendly?) company behind it:
> http://www.tuxera.com/community/ntfs-3g-download/
>
>
>> Linux, NetBSD and FreeBSD are supposed to be able to read and write NTFS 
>> partition, but I see from a very recent thread on this list, subject "Re: 
>> External HD", that writing to NTFS partition is very dangerous, and I figure 
>> that would be also true for NetBSD and Linux, and any other 
>> non-MS-Windows-NT-line OS that might have support for NTFS.
>
> I haven't seen recent horror stories about NTFS use on Linux, since
> the userspace/fuse implementations. Haven't had any problemas myself
> too. Except for a hiccup: one of the implementations (can't remember
> which) would semi-silently ignore files/paths for which it couldn't
> parse the charset, that it, it didn't copy the files/dirs, also didn't
> error, just spit some mumbling in dmesg (this was on Linux also). So
> beware of your FS charset.
>
> As Joshua Isom mentioned, there's also UDF. But IIRC FreeBSD wasn't
> able to write on it when I checked. Also slow compared to native FSs
> (same league or worse than the userspace NTFSs). I'd love to go with
> UDF, if only it had better support/performance.
>
> And don't underestimate your backups.
>
> --
> (nil)
>



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