Public bug reported:
Today unattended upgrade of ISC DHCPD overwrite config file /etc/default
/isc-dhcp-server and set wrong interface where daemon have to listen
(eno2 instead of br0 as was set before update).
I see no backup file of original config file so I had to investigate
where the problem was.
Update have to never overwrite config file and throw away previous
version.
/var/log/apt/history.log:
Start-Date: 2021-05-28 06:17:41
Commandline: /usr/bin/unattended-upgrade
Upgrade: isc-dhcp-server:amd64 (4.4.1-2.1ubuntu5, 4.4.1-2.1ubuntu5.20.04.2)
End-Date: 2021-05-28 06:17:47
root@linux:~# ls -l /etc/default/isc-dhcp-server
-rw-r--r-- 1 root root 629 May 28 06:17 /etc/default/isc-dhcp-server
** Affects: isc-dhcp (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
Today unattended upgrade of ISC DHCPD overwrite config file /etc/default
/isc-dhcp-server and set wrong interface where daemon have to listen
(eno2 instead of br0 as was set before update).
I see no backup file of original config file so I had to investigate
where the problem was.
Update have to never overwrite config file and throw away previous
version.
/var/log/apt/history.log:
Start-Date: 2021-05-28 06:17:41
Commandline: /usr/bin/unattended-upgrade
Upgrade: isc-dhcp-server:amd64 (4.4.1-2.1ubuntu5, 4.4.1-2.1ubuntu5.20.04.2)
End-Date: 2021-05-28 06:17:47
+
+ root@linux:~# ls -l /etc/default/isc-dhcp-server
+ -rw-r--r-- 1 root root 629 May 28 06:17 /etc/default/isc-dhcp-server
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https://bugs.launchpad.net/bugs/1930103
Title:
isc-dhcp-server overwrites /etc/default/isc-dhcp-server during update
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