postfix-nochroot(8)

💅 postfix-nochroot — the manual, bestie edition

okay so real quick, the manual name is postfix-nochroot and it lives in section 8, which is giving "System Manager's Manual" energy. here's the whole thing, no skips, no cap. 🫶

✨ NAME ✨

postfix-nochroot — changes /etc/postfix/master.cf so it does not use chroot. that's the whole job. iconic. 💖

🌸 SYNOPSIS 🌸

postfix-nochroot

that's it. no flags. no arguments. she takes no notes. 👑

🦋 DESCRIPTION 🦋

so here's the vibe. this script:

• renames /etc/postfix/master.cf to /etc/postfix/master.cf.bak (yes, bestie, a backup, we love to see it 💖)
• creates a brand-new /etc/postfix/master.cf where every single service is configured to not use chroot
• comments out every line it modified, so you can literally see what it did 👀
• restarts Postfix so the change actually applies
• removes the now-unused chroot directories /var/spool/postfix/{etc,lib,usr}

and why are we doing all this, you ask? because using a chroot environment makes upgrades more difficult, and it gets in the way when you're running SE Linux — without actually providing any security benefit in a SE Linux system. so like… it's giving extra work for zero reward. 🙈

💜 SEE ALSO 💜

• selinux(8)
• sestatus(8)
• selinuxenabled(1)
• check-selinux-installation(8)
• selinux-config-enforcing(8)
• selinux-policy-upgrade(8)
• http://wiki.debian.org/SELinux — more about SELinux Debian install 🌈
• http://etbe.coker.com.au/tag/selinux/ — Russell's SE Linux blog posts ✨
• http://etbe.coker.com.au/2008/08/02/postfix-and-chroot/ — post about this script 🔥

🎀 AUTHOR 🎀

this program and its man page was written by Russell Coker <russell@coker.com.au> for the Debian system (but it may be used by others, she's generous like that 🫶).

permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3.

on Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-3. go read it bestie, it's right there 💅

aaaand that's the whole page!! thanks for coming to my ted talk, this was postfix-nochroot(8) from the System Manager's Manual, section 8, and the source line at the bottom is literally the same as the top because this page is that consistent. slay. 💖✨🎀🦋🌸