this patch against a vanilla qmail-1.03 adds logging capabilities to the qmail POP3 daemon.
note: Mattias Pålsson has a solution to log user logins without patching qmail-pop3d.
Take a look at simple logging wrapper for qmail-pop3d.This page is no longer available.
If you only need user logging and want to keep your sources clean you may try the following:
Create a shell script /var/qmail/bin/qmail-pop3d-wrapper.sh:#!/bin/sh echo "qmail-pop3d: user $USER logged in from $TCPREMOTEIP:$TCPREMOTEPORT" >&5 $@and then modify the startup script (probably /service/qmail-pop3d/run) like that:exec /usr/bin/softlimit -m 3000000 \ /usr/bin/tcpserver -v -R -H -l FQDN 0 110 \ /var/qmail/bin/qmail-popup FQDN /bin/checkpassword \ /var/qmail/bin/qmail-pop3d-wrapper.sh /var/qmail/bin/qmail-pop3d Maildir 2>&1 5>&1
acct: pid pid: remote_host:remote_ip:remote_info:remote_port user login
acct: pid pid: remote_host:remote_ip:remote_info:remote_port user logout bytes bytes transferred
acct: pid 91398: desktop.example.com:10.0.0.1::12345 firstname.lastname@example.org login
acct: pid 91398: desktop.example.com:10.0.0.1::12345 email@example.com logout 535502 bytes transferred
If remote_host cannot be determined from the TCPREMOTEHOST environment
variable it is set to unknown.
If remote_info cannot be determined from the TCPREMOTEINFO environment variable it is set to to an empty string (see example above).
The user info is taken from the USER environment variable (which should be properly set by the checkpassword program.
The accounting information is output on filedescriptor 5, so you have to add a 5>&1 (probably in addition to the 2>&1 already there) to the end of the qmail-pop3d command to get the data into a logfile (FD 2 is used in communication between qmail-popup and checkpassword and is not available for logging in qmail-pop3d).
Bytes are summarized in the blast() function, so no command transfers are accounted but only data retrieved via the RETR or TOP commands.
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