SUSE linux10sp2 关闭IPV6及防火墙 |
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部分一:关闭ipv6 # ip add sh 1: lo: mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth1: mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0c:29:7b:80:9b brd ff:ff:ff:ff:ff:ff inet 172.24.0.20/24 brd 172.24.0.255 scope global eth1 inet6 fe80::20c:29ff:fe7b:809b/64 scope link valid_lft forever preferred_lft forever 由上面红色的标识可知,当前系统的ipv6已经启用了,那么现在要将ipv6关闭: # vi /etc/modprobe.conf 将“alias net-pf-10 ipv6”修改为如下: alias net-pf-10 off alias ipv6 off 然后重启系统,一定要重启系统才能看到效果。 # ip add sh 1: lo: mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope host lo 2: eth1: mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0c:29:7b:80:9b brd ff:ff:ff:ff:ff:ff inet 172.24.0.20/24 brd 172.24.0.255 scope global eth1 部分二:使用命令永久关闭防火墙 (1)首先查看当前防火墙的状态 linux:~ # SuSEfirewall2 status SuSE系统会默认启用防火墙的,而且防火墙中默认存在很多规则。此时可以用下面命令立即关闭防火墙: linux:~ # SuSEfirewall2 stop SuSEfirewall2: Warning: ip6tables does not support state matching. Extended IPv6 support disabled. SuSEfirewall2: batch committing... SuSEfirewall2: Firewall rules unloaded. (2)上面的操作只是确定当前系统已经关闭了防火墙,但不确保系统重启后仍然是关闭防火墙的,所以还要进行下面的操作: linux:~ # chkconfig --list | grep -i fire SuSEfirewall2_init 0:off 1:off 2:off 3:off 4:off 5:off 6:off B:on SuSEfirewall2_setup 0:off 1:off 2:off 3:on 4:on 5:on 6:off 于是: linux:~ # chkconfig SuSEfirewall2_setup off linux:~ # chkconfig --list | grep -i fire SuSEfirewall2_init 0:off 1:off 2:off 3:off 4:off 5:off 6:off B:on SuSEfirewall2_setup 0:off 1:off 2:off 3:off 4:off 5:off 6:off linux:~ # chkconfig --level B SuSEfirewall2_init off linux:~ # chkconfig --list | grep -i fire SuSEfirewall2_init 0:off 1:off 2:off 3:off 4:off 5:off 6:off SuSEfirewall2_setup 0:off 1:off 2:off 3:off 4:off 5:off 6:off 至此,系统的防火墙完成关闭了。
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