◆系统加固及安全 1、内核优化：用脚本实现 [root@mailserv2 ~]# more /usr/local/bin/kernel_optimize #!/bin/bash #kernel optimize optimize ,create by 2007-7-29 #enable broadcast echo protection echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts #disble source routed packets #for f in /proc/sys/net/ipv4/conf/*/accept_source_rout; do # echo 0 > $f #done #enable tcp syn cookie protection echo 1 >...
Postfix 电子邮件系统精要(二)
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