Package: ifupdown
Version: 0.8.44
Severity: important

After upgrading my Amazon lightsail vps to Trixie, it kept having the
network just go dead and would need rebooted.  After some digging, I
realized that dhclient was not running.  I don't know how ifup got the
initial DHCP lease, but syslog shows dhclient was never run, and there
appeared to be no daemon running to renenew the lease.  Without
renewals, the network stopped working after a while.  After I manually
run dhclient, it keeps renewing the lease and things stay working.


-- Package-specific info: - /etc/network/interfaces: # This file
--describes the network interfaces available on your system # and how
--to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug ens5
iface ens5 inet dhcp
iface ens5 inet6 dhcp


--- /etc/network/interfaces.d/*:
cat: '/etc/network/interfaces.d/*': No such file or directory

--- up and down scripts installed:
/etc/network/if-down.d:
total 12
-rwxr-xr-x 1 root root 289 Jan 25  2025 bind9
-rwxr-xr-x 1 root root 207 Aug 22 02:51 postfix
-rwxr-xr-x 1 root root 759 Dec  9  2022 resolved

/etc/network/if-post-down.d:
total 0

/etc/network/if-pre-up.d:
total 0

/etc/network/if-up.d:
total 16
-rwxr-xr-x 1 root root  289 Jan 25  2025 bind9
-rwxr-xr-x 1 root root  207 Aug 22 02:51 postfix
-rwxr-xr-x 1 root root 4665 Aug 19  2024 resolved


-- System Information:
Debian Release: 13.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-39-cloud-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages ifupdown depends on:
ii  adduser   3.152
ii  iproute2  6.15.0-1
ii  libc6     2.41-12

Versions of packages ifupdown recommends:
ii  isc-dhcp-client [dhcp-client]  4.4.3-P1-8

Versions of packages ifupdown suggests:
pn  ppp     <none>
pn  rdnssd  <none>

-- no debconf information

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