This is by design, see /usr/share/doc/iptables/NEWS.Debian.gz :
iptables (1.8.4-1) unstable; urgency=medium
All the iptables binaries have been moved away from /sbin to /usr/sbin.
Compatibility symlinks were provided during the Buster release, but they
have been dropped now.
Please make sure your scripts aren't using hardcoded binary paths.
.
Also, please note that iptables is no longer Priority: important. This
means it is not installed by default in every system. It has been replaced
by nftables.
-- Arturo Borrero Gonzalez <art...@debian.org> Wed, 04 Dec 2019
11:49:00 +0200
** Changed in: iptables (Ubuntu)
Status: New => Incomplete
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Touch seeded packages, which is subscribed to iptables in Ubuntu.
https://bugs.launchpad.net/bugs/1966133
Title:
/sbin/ip*tables* symbolic links removed when upgrading from 18.04 to
20.04
Status in iptables package in Ubuntu:
Incomplete
Bug description:
When upgraded from Ubuntu 18.04 to Ubuntu 20.04 the symbolic links in
/sbin are removed.
Before upgrade
# ls -al /sbin/ip*tables*
lrwxrwxrwx 1 root root 13 Nov 12 2017 /sbin/ip6tables -> xtables-multi
lrwxrwxrwx 1 root root 13 Nov 12 2017 /sbin/ip6tables-restore ->
xtables-multi
lrwxrwxrwx 1 root root 13 Nov 12 2017 /sbin/ip6tables-save -> xtables-multi
lrwxrwxrwx 1 root root 13 Nov 12 2017 /sbin/iptables -> xtables-multi
lrwxrwxrwx 1 root root 13 Nov 12 2017 /sbin/iptables-restore -> xtables-multi
lrwxrwxrwx 1 root root 13 Nov 12 2017 /sbin/iptables-save -> xtables-multi
# dpkg -S /sbin/ip*tables*
iptables: /sbin/ip6tables
iptables: /sbin/ip6tables-restore
iptables: /sbin/ip6tables-save
iptables: /sbin/iptables
iptables: /sbin/iptables-restore
iptables: /sbin/iptables-save
After upgrade
# ls -al /sbin/ip*tables*
ls: cannot access '/sbin/ip*tables*': No such file or directory
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