mirror of
https://github.com/Ponce/slackbuilds
synced 2024-11-26 22:06:35 +01:00
49 lines
1.5 KiB
Text
49 lines
1.5 KiB
Text
psad (Intrusion Detection and Log Analysis with iptables)
|
|
|
|
psad is a collection of three lightweight system daemons (two main
|
|
daemons and one helper daemon) that run on Linux machines and analyze
|
|
iptables log messages to detect port scans and other suspicious
|
|
traffic. A typical deployment is to run psad on the iptables firewall
|
|
where it has the fastest access to log data.
|
|
|
|
You can set email for alerts by setting ALERTSEMAIL:
|
|
|
|
ALERTSEMAIL=alerts@example.com ./psad.SlackBuild
|
|
|
|
You need at least these rules:
|
|
|
|
iptables -A INPUT -j LOG
|
|
iptables -A FORWARD -j LOG
|
|
|
|
but more usefull will be something like this:
|
|
|
|
iptables -A INPUT -i lo -j ACCEPT
|
|
iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
|
|
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
|
|
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
|
|
iptables -A INPUT -j LOG
|
|
iptables -A INPUT -j DROP
|
|
|
|
please see documentation for more information.
|
|
|
|
NOTE:
|
|
psad requires several perl modules:
|
|
perl-Bit-Vector
|
|
perl-Date-Calc
|
|
perl-IPTables-Parse
|
|
perl-IPTables-ChainMgr
|
|
perl-NetAddr-IP
|
|
perl-Unix-Syslog
|
|
|
|
these are included in sources, so you don't need to install them.
|
|
But if you get some weird perl modules errors, you must uninstall
|
|
previous psad version before bulding new one.
|
|
Alternatively you can manually install this modules, all are available
|
|
on SlackBuilds.
|
|
|
|
NOTE:
|
|
The default option is NOT to download signatures.
|
|
We provide a signature file, but may be outdated as time goes by.
|
|
You can download them manually from:
|
|
http://www.cipherdyne.org/psad/signatures
|
|
...and place them in /etc/psad
|