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Name	Size	Permission	Date
.placeholder	102 B	-rw-r--r--	2015-05-03 15:25
00logwatch	268 B	-rwxr-xr-x	2017-01-21 17:29
0anacron	311 B	-rwxr-xr-x	2017-05-29 18:36
apache2	539 B	-rwxr-xr-x	2019-06-16 11:49
apt-compat	1.44 KB	-rwxr-xr-x	2017-06-01 10:50
backup-manager	111 B	-rwxr-x--x	2020-11-17 09:19
bsdmainutils	355 B	-rwxr-xr-x	2016-10-25 10:42
crowdsec	270 B	-rwxr-xr-x	2024-05-31 11:12
dpkg	1.56 KB	-rwxr-xr-x	2017-02-22 22:50
exim4-base	4.03 KB	-rwxr-xr-x	2018-02-10 09:26
locate	2.16 KB	-rwxr-xr-x	2014-04-13 16:12
logrotate	89 B	-rwxr-xr-x	2015-05-06 00:18
man-db	1.04 KB	-rwxr-xr-x	2016-12-13 14:09
mdadm	539 B	-rwxr-xr-x	2016-07-26 17:41
ntp	1.35 KB	-rwxr-xr-x	2018-02-15 12:45
passwd	249 B	-rwxr-xr-x	2017-05-17 13:59
quota	349 B	-rwxr-xr-x	2018-02-01 12:55
rkhunter	979 B	-rwxr-xr-x	2017-07-12 05:07

Rename

#!/bin/sh

if [ -n "$EX4DEBUG" ]; then
  echo "now debugging $0 $@"
  set -x
fi

# set this to some other value if you don't want the panic log to be
# watched by this script, for example when you're using your own log
# checking mechanisms or don't care.

E4BCD_DAILY_REPORT_TO=""
E4BCD_DAILY_REPORT_OPTIONS=""
E4BCD_WATCH_PANICLOG="yes"
# Number of lines of paniclog quoted in warning email.
E4BCD_PANICLOG_LINES="10"
E4BCD_PANICLOG_NOISE=""

# Only do anything if exim4 is actually installed
if [ ! -x /usr/lib/exim4/exim4 ]; then
  exit 0
fi

[ -f /etc/default/exim4 ] && . /etc/default/exim4

SPOOLDIR="$(exim4 -bP spool_directory | sed 's/.*=[[:space:]]$.*$/\1/')"

# The log processing code used in this cron script is not very
# sophisticated. It relies on this cron job being executed earlier than
# the log rotation job, and will have false results if the log is not
# rotated exactly once daily in the daily cron processing. Even in the
# default configuration, it will ignore log entries made between this
# cron job and the log rotation job.

# Patches for more sophisticated processing are appreciated via the
# Debian BTS.

E4BCD_MAINLOG_NOISE="^[[:digit:][:space:]:-]\{20\}$\(Start\|End$ queue run: pid=[[:digit:]]\+\|exim [[:digit:]\.]\+ daemon started: pid=[[:digit:]]\+, .*\)$"

if [ -n "$E4BCD_DAILY_REPORT_TO" ]; then
  if [ -x "$(command -v eximstats)" ] && [ -x "$(command -v mail)" ]; then
    if [ "$(< /var/log/exim4/mainlog grep -v "$E4BCD_MAINLOG_NOISE" | wc -l)" -gt "0" ]; then
      < /var/log/exim4/mainlog grep -v "$E4BCD_MAINLOG_NOISE" \
                | eximstats $E4BCD_DAILY_REPORT_OPTIONS \
                | mail -s"$(hostname --fqdn) Daily e-mail activity report" \
		    $E4BCD_DAILY_REPORT_TO
    else
      echo "no mail activity in this interval" \
                | mail -s"$(hostname --fqdn) Daily e-mail activity report" \
		    $E4BCD_DAILY_REPORT_TO
    fi
  else
    echo "The exim4 cron job is configured to send a daily report, but eximstats"
    echo "and/or mail cannot be found. Please check and make sure that these two"
    echo "binaries are available"
  fi
fi

log_this() {
  TEXT="$@"
  if ! logger -t exim4 -p mail.alert $TEXT; then
    RET="$?"
    echo >&2 "ALERT: could not syslog $TEXT, logger return value $RET"
  fi
}

if [ "$E4BCD_WATCH_PANICLOG" != "no" ]; then
  if [ -s "/var/log/exim4/paniclog" ]; then
    if [ -x "/usr/local/lib/exim4/nonzero_paniclog_hook" ]; then
      /usr/local/lib/exim4/nonzero_paniclog_hook
    fi
    if [ -z "$E4BCD_PANICLOG_NOISE" ] || grep -vq "$E4BCD_PANICLOG_NOISE" /var/log/exim4/paniclog; then
      log_this "ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken"
      if ! printf "Subject: exim paniclog on %s has non-zero size\nTo: root\n\nexim paniclog /var/log/exim4/paniclog on %s has non-zero size, mail system might be broken. The last ${E4BCD_PANICLOG_LINES} lines are quoted below.\n\n%s\n" \
      "$(hostname --fqdn)" "$(hostname --fqdn)" \
      "$(tail -n "${E4BCD_PANICLOG_LINES}" /var/log/exim4/paniclog)" \
      | exim4 root; then
        log_this "PANIC: sending out e-mail warning has failed, exim has non-zero return code"
      fi
      if [ "$E4BCD_WATCH_PANICLOG" = "once" ]; then
        logrotate -f /etc/logrotate.d/exim4-paniclog
      fi
    fi
  fi
fi

# run tidydb as Debian-exim:Debian-exim.
if [ -x /usr/sbin/exim_tidydb ]; then
  cd $SPOOLDIR/db || exit 1
  if ! find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -name 'log.*' \
    -or -type f -printf '%f\0' | \
      xargs -0r -n 1 \
      start-stop-daemon --start --exec /usr/sbin/exim_tidydb \
      --chuid Debian-exim:Debian-exim -- $SPOOLDIR > /dev/null; then
    # if we reach this, invoking exim_tidydb from start-stop-daemon has
    # failed, most probably because of libpam-tmpdir being in use
    # (see #373786 and #376165)
    find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -name 'log.*' \
    -or -type f -printf '%f\0' | \
    su - --shell /bin/bash \
         --command "xargs -0r -n 1 /usr/sbin/exim_tidydb $SPOOLDIR > /dev/null" \
         Debian-exim
  fi
fi