背景：那个房间没有能正常上广域网的网口，就用了个无线中继
适用情况：上级路由ssh or teamviewer访问下级路由的机器，但下级路由不支持查看IP
自行完成下级路由（此处指无线中继）的端口映射or DMZ整机映射
apt-get install sshpass
#!/bin/bash
mkdir log
for i in $(seq 2 255)
do
sshpass -p tmp ssh -E err.log -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null tmp@10.10.20.$i cat /etc/os-release > log/10.10.20.$i.log &
done
admin@sr:/data/test/ssh$ grep -nr debian
log/10.10.20.124.log:6:ID=debian
log/10.10.20.124.log:7:HOME_URL="https://www.debian.org/"
log/10.10.20.124.log:8:SUPPORT_URL="https://www.debian.org/support"
log/10.10.20.124.log:9:BUG_REPORT_URL="https://bugs.debian.org/"
