标签:https enter water col from data time cap 服务
一、简单检查:
1、SMTP检查:
安装postfix   检查SMTP服务。
[root@localhost ~]# vim /etc/postfix/main.cf                //邮件传输代理软件
inet_interfaces = 192.168.1.60
mydestination = $myhostname, localhost.$mydomain, localhost    // localhost开放
[root@localhost ~]# systemctl restart postfix.service 
[root@localhost ~]# ss -tunlp
users:(("sshd",pid=22755,fd=3))
tcp    LISTEN     0      100           192.168.1.60:25      *:*    
[root@localhost ~]# telnet 192.168.1.60 25    //简单检查我们的25端口开启
Trying 192.168.1.60...
Connected to 192.168.1.60.
Escape character is ‘^]‘.
220 localhost.localdomain ESMTP Postfix
ctrl+]
telnet>quit
SMTP的值是1
2、ICMP检查:
安装fping工具:
[root@localhost ~]# yum -y install fping
 [root@localhost ~]# ping 192.168.1.59
PING 192.168.1.59 (192.168.1.59) 56(84) bytes of data.
64 bytes from 192.168.1.59: icmp_seq=1 ttl=64 time=2.53 ms

ICMP显示的是ping值

标签:https enter water col from data time cap 服务
原文地址:https://blog.51cto.com/15005403/2552397