postfix chroot and updated shared libraries

[keeka]

I notice postfix check complains about differences between system files and their counterparts in postfix chroot:

warning: /var/spool/postfix/etc/localtime and /etc/localtime differ
warning: /var/spool/postfix/lib/x86_64-linux-gnu/libnss_systemd.so.2 and /lib/x86_64-linux-gnu/libnss_systemd.so.2 differ

The first warning seems to be because my system TZ was changed post-install and the postfix one is a copy of UTC.

With the second warning, presumably because a system shared library has been updated, should we copy the new lib to the postfix chroot?

 

[Stoiko Ivanov]

see: https://bugzilla.proxmox.com/show_bug.cgi?id=5323#c1

this explains the situation quite well I hope.

 

[keeka]

Many thanks for the clarification. I'd assumed postfix ran chroot.
The comment in master.cf is misleading as it implies the postfix default is to run chrooted.

# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (100)
# ==========================================================================

 

[Stoiko Ivanov]

Many thanks for the clarification. I'd assumed postfix ran chroot.
The comment in master.cf is misleading as it implies the default is to still to run chrooted.

Yes - this is something we'll change soon (which is the reason why the bugzilla entry is still not resolved