judge service

本地服务及端口监控

netstat -lntup | grep nginx | wc -l

ss -lntup | grep nginx | wc -l

lsof -i :80 | wc -l

远程端口监控

nmap -p 80 127.0.0.1 | grep open | wc -l

echo -e "\n" | telnet 127.0.0.1 80 2> /dev/null | grep Connected | wc -l

nc -z 127.0.0.1 80

echo $?

客户端模拟监控

wget -q 127.0.0.1 &> /dev/null

echo $?

curl 127.0.0.1 &> /dev/null

echo $?