Linuxiptables backing up and recovering instances from different machines

Linuxiptables: backs up and recovers instances from different machines. 1. the configuration file location of iptables is:/etc/sysconfig/iptables master control machine: a sub-machine in service running. backup machine: when the master machine fails, switch to the backup machine-operations on the master machine ----------------- 2. create...
Linux iptables: backs up and recovers instances from different machines. 1. iptables configuration file location:/etc/sysconfig/iptables master machine: machines in service running; backup machine: when the master machine fails, switch to the backup host-operations on the master machine ----------------- 2. create a directory: mkdir-p/bak/iptables/mkdir/root/script/3. create a script in the/root/script/directory: vi backup. sh www.2cto.com \ cp/etc/sysconfig/iptables/bak/iptables _ $ (date + % Y % m % d % H) 4. Custom automatic tasks: crontab-e */10 *****/usr/sbin/ntpdate 210.72.145.4410 ***** sh/root/script/backup. sh- -On the backup machine, perform operations ----------------- 5. create a directory: mkdir-p/bak/iptables/{lt, yd} # lt directory to store the backups that are redirected to China Unicom, copy the mkdir/root/script/6 file in the yd directory and create a script in the/root/script/directory: vi scp_lt.sh #! /Usr/bin/empty CT-fset password maid scp-P 22 root@202.105.135.52:/etc/sysconfig/iptables/bak/iptables/lt/iptablesset timeout 300 empty CT "root@202.105.135.52's password: "set timeout 300 send" $ password \ r "set timeout 300 send" exit \ r "keep Ct eof 7. create a script in the/root/script/directory: vi scp_yd.sh www.2cto.com #! /Usr/bin/login CT-fset password maid scp-P 22 root@183.62.178.91:/etc/sysconfig/iptables/bak/iptables/yd/iptablesset timeout 300 login CT "root@183.62.178.91's password: "set timeout 300 send" $ password \ r "set timeout 300 send" exit \ r "keep Ct eof 8. create a script in the/root/script/directory: vi backup. sh www.2cto.com login CT/root/script/scp_lt.shexpect/root/script/scp_yd.shsed-I's/202.105.135.52/logs/g'/bak/iptables/lt/iptablessed-I's/logs /58.250.56.154/g'/bak/iptables/lt/iptables \ cp/bak/iptables/lt/iptables/etc/sysconfig/iptables/etc/init. d/iptables restart/etc/init. d/iptables savemv/bak/iptables/lt/iptables _ $ (date + % Y % m % d % H) mv/bak/iptables/yd/iptables _ $ (date + % Y % m % d % H) 9. note, you need to manually log on to the backup machine once to obtain the RSA public key, and then do not need to log on like this, otherwise the script will execute error 10, custom automatic task: crontab-e */10 *****/usr/sbin/ntpdate 210.72.145.4420 ***** sh/root/script/backup. sh author wang7dao