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linux下批量并行telnet对端端口的实现方法

作者:佚名 来源:网络整理 2015-8-14

   以下是以telnet对端22端口为例

  station91:~/shell/telnet_port # pwd

  /root/shell/telnet_port

  station91:~/shell/telnet_port # cat telnet_port.sh

  #!/bin/bash

  rm telnet_result.txt >/dev/null 2>&1

  PORT_22=22

  for i in $(cat ip.list)

  do (telnet $i $PORT_22<>telnet_result.txt &) >/dev/null 2>&1

  #加&让其并行执行,>>telnet_result.txt记录telnet过程中的日志

  quit

  EOF

  done

  cat telnet_result.txt | grep -B 1 \] | grep [1-9] | awk '{print $3}' | cut -d '.' -f 1,2,3,4 > telnet_alive.txt

  cat ip.list telnet_alive.txt | sort | uniq -u > telnet_die.txt

  station91:~/shell/telnet_port # for i in {88..93};do echo "192.168.14.$i">>ip.list;done #使用for循环得到需要telnet主机的ip

  station91:~/shell/telnet_port # cat ip.list

  192.168.14.88

  192.168.14.89

  192.168.14.90

  192.168.14.91

  192.168.14.92

  192.168.14.93

  station91:~/shell/telnet_port # ls

  ip.list telnet_port.sh

  station91:~/shell/telnet_port # ./telnet_port.sh &

  [1] 16848

  station91:~/shell/telnet_port # ls

  ip.list telnet_alive.txt telnet_die.txt telnet_port.sh telnet_result.txt

  [1]+ Done ./telnet_port.sh

  station91:~/shell/telnet_port # cat telnet_alive.txt //从本机telnet对端22端口能telnet通的只有192.168.14.91

  192.168.14.91

  station91:~/shell/telnet_port # cat telnet_die.txt

  192.168.14.88

  192.168.14.89

  192.168.14.90

  192.168.14.92

  192.168.14.93

  station91:~/shell/telnet_port # cat telnet_result.txt //记录的日志格式

  Trying 192.168.14.91...

  Connected to 192.168.14.91.

  Escape character is '^]'.

  Trying 192.168.14.88...

  Trying 192.168.14.89...

  Trying 192.168.14.90...

  Trying 192.168.14.92...

  Trying 192.168.14.93...

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