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Posted to users@spamassassin.apache.org by Helmut Schneider <ju...@gmx.de> on 2007/07/10 10:57:53 UTC
AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Hi,
I tried to set up SA with AMaViS in a chrooted environment
($daemon_chroot_dir = $MYHOME). I (thought I) copied all necessary files to
the jail but when SA is starting I get an error:
Jul 10 10:44:02 TEG /usr/local/sbin/amavisd[6817]: SpamControl: initializing
Mail::SpamAssassin
Error creating a DNS resolver socket: No such file or directory at
/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm line
227.
Jul 10 10:44:05 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
init_pre_fork done
Any idea what is missing?
Thanks, Helmut
Re: AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Posted by Helmut Schneider <ju...@gmx.de>.
From: "Leon Kolchinsky" <lk...@univ.haifa.ac.il>
> I've never run amavisd-new in chroot, but may be you'll find some tips
> here - http://www.ijs.si/software/amavisd/README.chroot Seems to me
> like a resolver issue (probably need to configure FreeBSD a little
> different than OpenBSD). Best Regards,
Well, you should. Everyone should run amavis and the virus engine
chroot'ed... :)
BTW, I know this document very well, see notes at bottom and:
http://flakshack.com/anti-spam/wiki/index.php?page=Introduction
;))
RE: AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Posted by Leon Kolchinsky <lk...@univ.haifa.ac.il>.
>
> What would a perl command look like to resolve a host? Because I think it
> is
> a perl issue.
>
> Helmut
I've never run amavisd-new in chroot, but may be you'll find some tips here - http://www.ijs.si/software/amavisd/README.chroot
Seems to me like a resolver issue (probably need to configure FreeBSD a little different than OpenBSD).
Best Regards,
Leon Kolchinsky
Re: AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Posted by Helmut Schneider <ju...@gmx.de>.
From: "Leon Kolchinsky" <lk...@univ.haifa.ac.il>
> Stupid question, but $MYHOME = /var/amavis ?
Yes
> Also you can try to debug it with strace.
> Look for all the files you're missing in the jail and copy them into it.
> (here is a little example on how to use strace to find requirements
> outside the jail -
> http://olivier.sessink.nl/jailkit/howtos_debug_jails.html ) Best Regards,
> Leon Kolchinsky
I run amavisd/SA/clamav successfully on OpenBSD for years now but the same
config does not work with FreeBSD.
I put 'host' and 'nslookup' into the jail:
[root@BSDHelmut ~]# chroot -u vscan -g vscan /var/amavis/ /usr/bin/host
www.google.de
www.google.de is an alias for www.google.com.
www.google.com is an alias for www.l.google.com.
www.l.google.com has address 209.85.135.104
www.l.google.com has address 209.85.135.147
www.l.google.com has address 209.85.135.99
www.l.google.com has address 209.85.135.103
[root@BSDHelmut ~]# chroot -u vscan -g vscan /var/amavis/ /usr/bin/nslookup
www.google.de
Server: 192.168.0.90
Address: 192.168.0.90#53
Non-authoritative answer:
www.google.de canonical name = www.google.com.
www.google.com canonical name = www.l.google.com.
Name: www.l.google.com
Address: 209.85.135.104
Name: www.l.google.com
Address: 209.85.135.147
Name: www.l.google.com
Address: 209.85.135.99
Name: www.l.google.com
Address: 209.85.135.103
[root@BSDHelmut ~]#
But amavisd debug-sa says:
[...]
[7930] dbg: util: final PATH set to: /usr/local/sbin:/usr/local/bin:/usr/bin
[7930] dbg: dns: no ipv6
[7930] dbg: dns: is Net::DNS::Resolver available? yes
[7930] dbg: dns: Net::DNS version: 0.60
[...]
[7930] dbg: dns: is_dns_available() last checked 1184065522 seconds ago;
re-checking
[7930] dbg: dns: name server: 192.168.0.90, LocalAddr: 0.0.0.0
Error creating a DNS resolver socket: No such file or directory at
/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm line
227.
[7930] dbg: dns: testing resolver nameservers: 192.168.0.90, 192.168.0.80
[7930] dbg: dns: trying (3) ebay.com...
[7930] dbg: dns: looking up NS for 'ebay.com'
[7930] dbg: dns: NS lookup of ebay.com using 192.168.0.90 failed, no results
found
[7930] dbg: dns: trying (2) motorola.com...
[7930] dbg: dns: looking up NS for 'motorola.com'
[7930] dbg: dns: NS lookup of motorola.com using 192.168.0.90 failed, no
results found
[7930] dbg: dns: trying (1) yahoo.com...
[7930] dbg: dns: looking up NS for 'yahoo.com'
[7930] dbg: dns: NS lookup of yahoo.com using 192.168.0.90 failed, no
results found
[7930] dbg: dns: NS lookups failed, removing nameserver 192.168.0.90 from
list
[7930] dbg: dns: trying (3) google.com...
[7930] dbg: dns: looking up NS for 'google.com'
[7930] dbg: dns: NS lookup of google.com using 192.168.0.80 failed, no
results found
[7930] dbg: dns: trying (2) kernel.org...
[7930] dbg: dns: looking up NS for 'kernel.org'
[7930] dbg: dns: NS lookup of kernel.org using 192.168.0.80 failed, no
results found
[7930] dbg: dns: trying (1) linux.org...
[7930] dbg: dns: looking up NS for 'linux.org'
[7930] dbg: dns: NS lookup of linux.org using 192.168.0.80 failed, no
results found
[7930] dbg: dns: NS lookups failed, removing nameserver 192.168.0.80 from
list
[7930] dbg: dns: all NS queries failed => DNS unavailable (set dns_available
to override)
[7930] dbg: dns: is DNS available? 0
What would a perl command look like to resolve a host? Because I think it is
a perl issue.
Helmut
RE: AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Posted by Leon Kolchinsky <lk...@univ.haifa.ac.il>.
> >> I tried to set up SA with AMaViS in a chrooted environment
> >> ($daemon_chroot_dir = $MYHOME). I (thought I) copied all necessary
> files
> >> to
> >> the jail but when SA is starting I get an error:
> >> Jul 10 10:44:02 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
> >> initializing
> >> Mail::SpamAssassin
> >> Error creating a DNS resolver socket: No such file or directory at
> >> /usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
> >> line 227.
> >> Jul 10 10:44:05 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
> >> init_pre_fork done
> >> Any idea what is missing?
> > Do you have this
> > /usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
> > File in your chrooted environment?
>
> Yes:
>
> [root@TEG ~]# ls -la
> /var/amavis/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResol
> ver.pm
> -rwxr-x--- 1 root vscan 14970 Jun 8 14:55
> /var/amavis/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResol
> ver.pm
> [root@TEG ~]#
>
> Can I run a perl script using DNSResolver to test things? BTW,
> $CHROOT/etc/resolv.conf is of course present, too.
Stupid question, but $MYHOME = /var/amavis ?
Also you can try to debug it with strace.
Look for all the files you're missing in the jail and copy them into it.
(here is a little example on how to use strace to find requirements outside the jail - http://olivier.sessink.nl/jailkit/howtos_debug_jails.html )
Best Regards,
Leon Kolchinsky
Re: AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Posted by Helmut Schneider <ju...@gmx.de>.
From: "Leon Kolchinsky" <lk...@univ.haifa.ac.il>
>> I tried to set up SA with AMaViS in a chrooted environment
>> ($daemon_chroot_dir = $MYHOME). I (thought I) copied all necessary files
>> to
>> the jail but when SA is starting I get an error:
>> Jul 10 10:44:02 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
>> initializing
>> Mail::SpamAssassin
>> Error creating a DNS resolver socket: No such file or directory at
>> /usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
>> line 227.
>> Jul 10 10:44:05 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
>> init_pre_fork done
>> Any idea what is missing?
> Do you have this
> /usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
> File in your chrooted environment?
Yes:
[root@TEG ~]# ls -la
/var/amavis/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
-rwxr-x--- 1 root vscan 14970 Jun 8 14:55
/var/amavis/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
[root@TEG ~]#
Can I run a perl script using DNSResolver to test things? BTW,
$CHROOT/etc/resolv.conf is of course present, too.
RE: AMaViS/SA chrroted: Error creating a DNS resolver socket: No such file or directory
Posted by Leon Kolchinsky <lk...@univ.haifa.ac.il>.
> Hi,
>
> I tried to set up SA with AMaViS in a chrooted environment
> ($daemon_chroot_dir = $MYHOME). I (thought I) copied all necessary files
> to
> the jail but when SA is starting I get an error:
>
> Jul 10 10:44:02 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
> initializing
> Mail::SpamAssassin
> Error creating a DNS resolver socket: No such file or directory at
> /usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm line
> 227.
> Jul 10 10:44:05 TEG /usr/local/sbin/amavisd[6817]: SpamControl:
> init_pre_fork done
>
> Any idea what is missing?
>
Do you have this
/usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
File in your chrooted environment?
If not, copy it to $daemon_chroot_dir//usr/local/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/DnsResolver.pm
Regards,
Leon Kolchinsky