RAC两台服务器的/etc/hosts都是如下 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.130.200 hdba hdba 192.168.130.201 hdbb hdbb hdbb 192.168.130.135 hdb-cluster hdb-cluster 192.168.130.136 hdb-cluster-scan hdb-cluster-scan 192.168.130.137 hdba-vip hdba-vip 192.168.130.138 hdbb-vip hdbb-vip 192.168.148.200 hdba-priv hdba-priv 192.168.148.201 hdbb-priv hdbb-priv 192.168.130.208 hdg hdg A实例服务器的ip信息 [root@hdba ~]# ifconfig eth0 Link encap:Ethernet HWaddr 5C:B9:01:99:3A:84 inet addr:192.168.148.200 Bcast:192.168.148.255 Mask:255.255.255.0 inet6 addr: fe80::5eb9:1ff:fe99:3a84/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2783160300 errors:0 dropped:0 overruns:0 frame:0 TX packets:2925124606 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2205601483366 (2.0 TiB) TX bytes:2420649621403 (2.2 TiB) eth0:1 Link encap:Ethernet HWaddr 5C:B9:01:99:3A:84 inet addr:169.254.221.245 Bcast:169.254.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth1 Link encap:Ethernet HWaddr 5C:B9:01:99:3A:85 inet addr:192.168.130.200 Bcast:192.168.130.255 Mask:255.255.255.0 inet6 addr: fe80::5eb9:1ff:fe99:3a85/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:7365390091 errors:0 dropped:0 overruns:0 frame:0 TX packets:8297092138 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2046603688342 (1.8 TiB) TX bytes:6835745161060 (6.2 TiB) eth1:2 Link encap:Ethernet HWaddr 5C:B9:01:99:3A:85 inet addr:192.168.130.137 Bcast:192.168.130.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 B实例服务器的ip信息 [root@hdbb ~]# ifconfig eth0 Link encap:Ethernet HWaddr 5C:B9:01:99:38:24 inet addr:192.168.148.201 Bcast:192.168.148.255 Mask:255.255.255.0 inet6 addr: fe80::5eb9:1ff:fe99:3824/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2925138277 errors:0 dropped:0 overruns:0 frame:0 TX packets:2783173132 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2420675528287 (2.2 TiB) TX bytes:2205594234468 (2.0 TiB) eth0:1 Link encap:Ethernet HWaddr 5C:B9:01:99:38:24 inet addr:169.254.205.69 Bcast:169.254.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth1 Link encap:Ethernet HWaddr 5C:B9:01:99:38:25 inet addr:192.168.130.201 Bcast:192.168.130.255 Mask:255.255.255.0 inet6 addr: fe80::5eb9:1ff:fe99:3825/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:6957519128 errors:0 dropped:0 overruns:0 frame:0 TX packets:8365702494 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2024616025362 (1.8 TiB) TX bytes:7204587376017 (6.5 TiB) eth1:1 Link encap:Ethernet HWaddr 5C:B9:01:99:38:25 inet addr:192.168.130.138 Bcast:192.168.130.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 两台服务器的防火墙配置都一样,配置文件/etc/sysconfig/iptables内容如下 -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT #来自心跳网卡的数据都放行 -A INPUT -i eth0 -j ACCEPT -A INPUT -i eth0:1 -j ACCEPT #vip和scan ip放行 #本来A实例的vip去访问B实例,在B实例防火墙添加A实例的vip,为了使两台服务器的防火墙配置一样,就把A实例和B实例的vip都放行 -A INPUT -s 192.168.130.200/32 -j ACCEPT -A INPUT -s 192.168.130.201/32 -j ACCEPT -A INPUT -s 192.168.130.137/32 -j ACCEPT -A INPUT -s 192.168.130.138/32 -j ACCEPT -A INPUT -s 192.168.130.135/32 -j ACCEPT -A INPUT -s 192.168.130.136/32 -j ACCEPT #信任IP列表,/24表示整个网段都开放,/32表示只开放这个IP -A INPUT -s 10.10.23.0/24 -p tcp -m state --state NEW -m tcp --dport 1521 -j ACCEPT -A INPUT -s 172.31.210.0/24 -p tcp -m state --state NEW -m tcp --dport 1521 -j ACCEPT -A INPUT -s 192.168.74.0/24 -p tcp -m state --state NEW -m tcp --dport 1521 -j ACCEPT -A INPUT -s 192.168.128.137/32 -p tcp -m state --state NEW -m tcp --dport 1521 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT
防火墙在RAC上的配置
来源:这里教程网
时间:2026-03-03 11:58:26
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