要腾服务器，古老的系统要重新部署，在linu上部署服务后，页面无法访问，然后查看服务端口是正常启动的，防火墙是放开的。。。最后发现链接输错了！！！
ps、netstat命令一直用,一直想不起来，今天再整理一下。
[root@zjweb ~]# pm2 list
┌────┬────────────────────┬──────────┬──────┬──────────┬──────────┬──────────┐
│ id │ name │ mode │ ? │ status │ cpu │ memory │
├────┼────────────────────┼──────────┼──────┼──────────┼──────────┼──────────┤
│ 1 │ snmpwalk │ fork │ 0 │ online │ 0.3% │ 44.9mb │
│ 3 │ snmpwalk_60 │ fork │ 0 │ online │ 0.2% │ 34.5mb │
│ 0 │ webserver │ fork │ 0 │ online │ 0.4% │ 83.6mb │
│ 2 │ webserver_60 │ fork │ 1 │ online │ 0.3% │ 85.2mb │
└────┴────────────────────┴──────────┴──────┴──────────┴──────────┴──────────┘
[root@zjweb ~]# [root@zjweb ~]# ps -ef | grep webserver
root 3981 3960 0 17:25 ? 00:00:52 node /home/zjgj/webserver/index.js
root 5966 3960 0 18:40 ? 00:00:36 node /home/zjgj_60_25/webserver/index.js
root 10503 10431 0 21:41 pts/0 00:00:00 grep --color=auto webserver
[root@zjweb ~]# netstat -nap | grep 3981
tcp 0 0 127.0.0.1:35878 127.0.0.1:3306 ESTABLISHED 3981/node /home/zjg
tcp 0 0 127.0.0.1:36468 127.0.0.1:3306 ESTABLISHED 3981/node /home/zjg
tcp6 0 0 :::3001 :::* LISTEN 3981/node /home/zjg
unix 3 [ ] STREAM CONNECTED 39574 3981/node /home/zjg
unix 3 [ ] STREAM CONNECTED 39576 3981/node /home/zjg
unix 3 [ ] STREAM CONNECTED 39578 3981/node /home/zjg
unix 3 [ ] STREAM CONNECTED 39572 3981/node /home/zjg [root@zjweb ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:origo-native
ACCEPT tcp -- anywhere anywhere tcp dpt:hbci
ACCEPT tcp -- anywhere anywhere tcp dpt:webcache
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT icmp -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT tcp -- 10.10.0.0/16 anywhere state NEW tcp dpt:ssh
ACCEPT tcp -- 1.203.174.0/24 anywhere state NEW tcp dpt:ssh
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:56011