Linux Network Services

To view open ports:

Netstat-tunlp

To view network configuration:

Chkconfig

To turn off the firewall:

Chkconfig iptables off

/etc/init.d/iptables stop

Open Telnet Service:

Yum Install Telnet-server #安装

Vi/etc/xinetd.d/telnet #修改telnet配置将disable =yes to No

/etc/init.d/xinetd Restart #重启xinetd服务

Chkconfig Telnet on #设置telnet服务自启动

Echo ' pts/0 ' >>/etc/securetty;echo ' pts/1 ' >>/etc/securetty; #设置允许远程登录root用户

Vi/etc/sysconfig/iptables #编辑该文件添加一行:-a input-m State--state new-m tcp-p TCP--dport 23-j ACCEPT

/etc/init.d/iptables Restart #重启防火墙

Telnet 127.0.0.1 [23°c] #测试远程登录

Open Daytime Services:

Vi/etc/xinetd/daytime-stream #修改daytime配置将disable =yes to No

/etc/init.d/xinetd Restart #重启xinetd服务

Telnet 127.0.0.1 #测试获取远程时间

　　

Linux Network Services