suse linux 10 开启Telnet

1.telnet服务默认是不安装的，所以要检查telnet是否被安装：
suse-linux:/ # chkconfig -list|grep telnet
如果出现如下显示表明telnet已经被安装
telnet: on
否则，就是没有安装，需要按照以下步骤安装telnet服务。

注意：如果上述命令出现如下返回则表示系统安装了依赖krb5 Server登录的telnet
ktelnet: on
如果没有设置krb5 Server将造成不能登录的情况，解决办法是使用如下命令将它关闭
suse-linux:/ # chkconfig ktelnet off
suse-linux:/ # chkconfig -list |grep telnet
ktelnet: off
telnet: on
2.安装telnet服务：
输入“yast2 inetd”：
suse-linux:~ # yast2 inetd

选择telnet服务：


screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here open new window\nCTRL Mouse wheel zoom in/out';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/uploads/allimg/100312/21255L2A-0.png');}" onmousewheel="return imgzoom(this);" alt="" />

注意，安装下面的，上面的是 ktelnet
然后，选择“Edit”，按照提示插入第4章光盘



3.开启防火墙23端口
输入“yast2 firewall”启动防火墙配置
suse-linux:/ # yast2 firewall

选择“Allowed Services”，然后选择“Advanced”

screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL Mouse wheel to zoom in/out';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/uploads/allimg/100312/21255KZ1-1.png');}" onmousewheel="return imgzoom(this);" alt="" />


输入端口号:23,
注意如果需要多个端口，端口号之间使用空格分隔

screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL Mouse wheel to zoom in/out';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('/uploads/allimg/100312/21255I5S-2.png');}" onmousewheel="return imgzoom(this);" alt="" />