編輯“APF”（章節(jié)）

== APF配置 ==
===修改配置文件===
 # vi /etc/apf/conf.apf
===端口設置 (INGRES)===

* [[cPanel]]的設置
      # Common ingress (inbound) TCP ports
      IG_TCP_CPORTS=" 20,21,22,25,26,53,80,110,143,443,465,993,995,2082,
      2083,2086,2087,2095,2096,3306,6666"\
      # Common ingress (inbound) UDP ports
      IG_UDP_CPORTS="21,53,465,873"
* [[DirectAdmin]] 面板的設置
      # Common ingress (inbound) TCP ports
      IG_TCP_CPORTS=" 21,22,25,53,80,110,111,143,443,587953,2222,3306,32769"
      # Common ingress (inbound) UDP ports
      IG_UDP_CPORTS="53,111,631,724,5353,32768,32809"

===讓APF監(jiān)控外出流量===
修改:
EGF="0"
為
EGF="1"
# Tell APF what ports to monitor
# Common egress (outbound) TCP ports (for Cpanel servers)
EG_TCP_CPORTS="21,22,25,26,37,43,53,80,110,113,443,465,873,2089,3306"
# Common egress (outbound) UDP ports
EG_UDP_CPORTS="20,21,53,465,873"
# Common ICMP (outbound) types
# 'internals/icmp.types' for type definition; 'all' is wildcard for any
EG_ICMP_TYPES="all"
# Save your changes! Ctrl+X then press Y
# Start APF
# /usr/local/sbin/apf -s
# If all works edit the config file and change the developer mode to 0
# pico /etc/apf/conf.apf
修改
DEVM="1"
為
DEVM="0"

===重啟 APF===
 # /usr/local/sbin/apf -r

===查看APF日志===

查看日志
tail -f /var/log/apf_log

輸出類似下面的內容:

    Aug 23 01:25:55 ocean apf(31448): (insert) deny all to/from 185.14.157.123
    Aug 23 01:39:43 ocean apf(32172): (insert) allow all to/from 185.14.157.123

===讓APF隨服務器自動啟動===

讓APF隨服務器自動啟動，運行下面的命令:

chkconfig --level 2345 apf on

禁止APF自動啟動，運行下面的命令:

chkconfig --del apf

===通過APF禁止IP===

可通過下面兩種方法禁止IP

* 通過命令：

/etc/apf/apf -d IPHERE COMMENTHERENOSPACES

>-d 表示禁止IP

> IPHERE 要禁止的IP地址

> COMMENTSHERENOSPACES 注釋該IP被封的原因

該命令是立即生效的

例子:

./apf -d 185.14.157.123 TESTING

vi /etc/apf/deny_hosts.rules

文件中多出來:

    # added 185.14.157.123 on 08/23/05 01:25:55
    # TESTING
    185.14.157.123

*通過編輯文件 deny_hosts.rules
vi /etc/apf/deny_hosts.rules

然后在該文件中添加要過濾的IP. 需要重新APF設置才會生效：

/etc/apf/apf -r

===解禁IP===

從deny_hosts.rules文件中移除IP就可以解禁該IP.

* 直接編輯文件

vi /etc/apf/deny_hosts.rules

找到IP并刪除掉，然后重啟APF：

/etc/apf/apf -r

*使用命令
如果IP不在deny_hosts.rules, 使用該命令可以將IP添加到APF的白名單中allow_hosts.rules

/etc/apf/apf -a IPHERE COMMENTHERENOSPACES

>  -a 表示允許IP

> IPHERE 要允許的IP地址

>COMMENTHERENOSPACES 注釋

例子:

./apf -a 185.14.157.123 UNBLOCKING

vi /etc/apf/allow_hosts.rules

    # added 185.14.157.123 on 08/23/05 01:39:43
    # UNBLOCKING
    185.14.157.123

===APF自定義Iptables命令===

/etc/apf下有2個配置文件postroute.rules和preroute.rules。把Iptables的POSTROUTE和 PREROUTE命令放入對應的配置文件，APF在啟動時就會自動調用實現(xiàn)NAT轉發(fā)。
其他Iptables自定義命令可以直接寫入/etc/apf/firewall里面。