kk Blog —— 通用基础


date [-d @int|str] [+%s|"+%F %T"]
netstat -ltunp
sar -n DEV 1

lvs fwmark 模式

http://blog.51cto.com/angus717/769577

persistent netfilter marked packet persistence 持久防火墙标记(在pre-routing链上打netfilter marked,而且该标记只在防火墙内部有效通常是0-99)

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[root@slave ~]# ipvsadm -C
[root@slave ~]# iptables -t mangle -A PREROUTING -i eth0 -p tcp -d 172.16.8.120 --dport 80 -j MARK --set-mark 80
[root@slave ~]# iptables -t mangle -A PREROUTING -i eth0 -p tcp -d 172.16.8.120 --dport 443 -j MARK --set-mark 80
[root@slave ~]# ipvsadm -A -f 80 -s rr -p 1000
[root@slave ~]# ipvsadm -a -f 80 -r 172.16.100.7 -g
[root@slave ~]# ipvsadm -a -f 80 -r 172.16.100.6 -g
[root@slave ~]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
FWM  80 rr persistent 1000
  -> 172.16.100.6:0               Route   1      0          0        
  -> 172.16.100.7:0               Route   1      0          0