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Using Blitzed Open Proxy Monitor (BOPM) with a fairly new version of InspIRCd needed a slightly different configuration than suggested here and there. The following is working for me, using InspIRCd 2.0.9 and the BOPM package provided by Ubuntu (Lucid, but shouldn’t make much of a difference).

First of all, the BOPM service wasn’t granted the proper user mode and consequently never registered the connect notifications. The InspIRCd documentation suggests that the proper modes might be set either in bopm.conf or InspIRCd’s configuration. BOPM’s documentation seems to suggest that the following is the correct config setting:

# bopm.conf
mode = "+c";

However, running BOPM in debug mode, it complained about mode c being unknown:

501 bopm c :is unknown mode char to me

This worked so much better:

# bopm.conf
mode = "+s +cC";

Now, BOPM will be notified upon every client connect, both local and remote. Next task is finding the proper regexp for detecting client connections. This is how a connect notification might look like:

*** CONNECT: Client connecting on port 6667 (class unnamed-26): ircnick!ircnick@server.example.com (192.168.200.103) [ircnick]

To catch the above notification, the following regular expression added to bopm.conf seems to work:

# bopm.conf
connregex = "\\*\\*\\* CONNECT: Client connecting on port [0-9]+.*?: ([^!]+)!([^@]+)@([^ ]+) \\(([0-9\\.]+)\\) \\[.*\\]";

Note: For some previous versions of InspIRCd, it seems the client IP is shown in brackets instead of parentheses. Also, it seems to not show the connection class. Obviously that will require a modified connregex.

For reference, this extract from inspircd.conf shows the necessary configuration on the InspIRCd side:

# inspircd.conf (or opers.conf)
<class name="BanOnly" commands="ZLINE" usermodes="s">
<type name="BOPM" classes="BanOnly" modes="+s +cC">
<oper name="bopm" password="bopmpass" host="*@localhost *@127.0.0.1" type="BOPM">