/etc/ircd/ircd.motd is in ircd-ircu 2.10.12.10.dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | [ Debian GNU/Linux ]
|------------------------------------------------------------------------|
| This is Debians default IRCd server config. If you see this and you're |
| the server administrator, edit files ircd.conf and ircd.motd in |
| /etc/ircd please. |
| Martin Loschwitz, April 10th |
|------------------------------------------------------------------------|
|