LVS 另类用法

 

iptables -t mangle -A PREROUTING -p tcp -d 192.168.4.183/32 --dport 27000 -j MARK --set-mark 27000
iptables -t mangle -A PREROUTING -p tcp -d 192.168.4.183/32 --dport 1027 -j MARK --set-mark 27000

 

ipvsadm -A -f 27000 -s wlc -p 30
ipvsadm -a -f 27000 -r 192.168.4.187:0 -g -w 1000
ipvsadm -a -f 27000 -r 192.168.4.186:0 -g -w 1000
ipvsadm -a -f 27000 -r 192.168.4.185:0 -g -w 1000

 

 

#!/bin/bash

   REAL_SERVER1=192.168.4.185
   REAL_SERVER2=192.168.4.186
   REAL_SERVER3=192.168.4.187

#   CONN_SERVER1=`ipvsadm -lcn | grep $REAL_SERVER1:1027 |wc -l`
#   echo $CONN_SERVER1

#   WEIGHT_SERVER1=`ipvsadm |grep 192.168.4.185 | awk '{print $4}' `
#   echo WEIGHT_SERVER1 IS $WEIGHT_SERVER1

   REAL_SERVER=("192.168.4.185" "192.168.4.186" "192.168.4.187")
   echo "now it has ${#REAL_SERVER[*]} real servers such as:" ${REAL_SERVER[*]}

   j=0
   for i in ${REAL_SERVER[*]}

    do

      CONN_SERVER[$j]=`/sbin/ipvsadm -lcn | grep $i:1027 |wc -l`
      WEIGHT_SERVER[$j]=`/sbin/ipvsadm |grep $i | awk '{print $4}' `


      echo "i am" $i
      echo "CONN_SERVER[$j]" ${CONN_SERVER[$j]}
      echo "WEIGHT_SERVER[$j]" ${WEIGHT_SERVER[$j]}

       if (( ${CONN_SERVER[$j]} ==0 )); then

              if !(( ${WEIGHT_SERVER[$j]}  == 1000 )); then
                     #echo aa ${WEIGHT_SERVER[$j]}
                     /sbin/ipvsadm -e -f 27000 -r $i -w 1000 -g
                     echo the weight of $i has been changed to 1000
              fi

       else

              if !(( ${WEIGHT_SERVER[$j]} == 1)); then
                    # echo bb ${WEIGHT_SERVER[$j]}
                     /sbin/ipvsadm -e -f 27000 -r $i -w 1 -g
                     echo the weight of $i has been changed to 1
              fi
       fi
      let j++
    done

 

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