How to Install APF
[1] Download and Install APF <syntaxhighlight lang="bash"> cd /usr/src wget http://www.rfxnetworks.com/downloads/apf-current.tar.gz tar -xzf apf-current.tar.gz rm -f apf-current.tar.gz cd apf-* sh ./install.sh</syntaxhighlight>
[2] Update the APF config file <syntaxhighlight lang="bash"> pico /etc/apf/conf.apf</syntaxhighlight>
A few lines need to be edited: <syntaxhighlight lang="bash"> DEVEL_MODE="0"
IG_TCP_CPORTS="20,21,22,25,53,80,110,143,443,465,587,993,995,1167,2082,2083,2086,2087,2095,2096,2719,3306,35000_36000,49152_49161" IG_UDP_CPORTS="21,53,465"
EGF="1" EG_TCP_CPORTS="20,21,22,25,37,43,53,80,113,443,465,873,2087,2089,2719,3306,20001" EG_UDP_CPORTS="21,53,465,873"
DLIST_PHP="1"
DLIST_DSHIELD="1"
DLIST_RESERVED="0"</syntaxhighlight>
[3] Make sure that passive ports are open and that the FTP server is configured to use passive ports: <syntaxhighlight lang="bash"> pico /etc/pure-ftpd.conf</syntaxhighlight>
Change the following line:
<syntaxhighlight lang="bash">
- PassivePortRange 30000 50000</syntaxhighlight>
to:
<syntaxhighlight lang="bash"> PassivePortRange 35000 36000</syntaxhighlight>
[4] Restart FTP <syntaxhighlight lang="bash"> service pure-ftpd restart</syntaxhighlight>
[5] Restart APF <syntaxhighlight lang="bash"> service apf restart</syntaxhighlight>