怎么在DebianLinux操作系统下启动Telnet服务？
怎么在DebianLinux操作系统下启动Telnet服务？
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我们现在来连接一下 root@2[/]# telnet 192。168。1。254 Trying 192。168。1。254。。。 Connected to 192。
168。1。254。 Escape character is '^]'。 lcnja。 8800。org login: root Login incorrect lcnja。
8800。org login: lcnja Password: Last login: Mon Sep 27 20:51:33 2004 from localhost。 localdomain on pts/3 Linux debian 2。
6。8-1-686 #1 Tue Sep 14 00:22:58 EDT 2004 i686 GNU/Linux The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright。
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law。
lcnja@lcnja:~$ 从上面我们可以看到我们已经连接成功了，但是使用root连接的时候会失败，因为默认的安全设置是限制root用户使用telnet连接主机的 本来因为telnet是明文传输的，所以处于安全考虑才限制了root从telnet登陆，如果你需要使用，那么如下修改 root@2[/]# nano /etc/pam。
d/login # # The PAM configuration file for the Shadow `login' service # # NOTE: If you use a session module (such as kerberos or NIS+) # that retains persistent credentials (like key caches, etc), you # need to enable the `CLOSE_SESSIONS' option in /etc/login。
defs # in order for login to stay around until after logout to call # pam_close_session() and cleanup。
# # Outputs an issue file prior to each login prompt (Replaces the # ISSUE_FILE option from login。
defs)。 Uncomment for use # auth required pam_issue。so issue=/etc/issue # Disallows root logins except on tty's listed in /etc/securetty # (Replaces the `CONSOLE' setting from login。
defs) #把下面在行注释掉 # auth requisite pam_securetty。so # Disallows other than root logins when /etc/nologin exists # (Replaces the `NOLOGINS_FILE' option from login。
defs) auth requisite pam_nologin。so # This module parses /etc/environment (the standard for setting # environ vars) and also allows you to use an extended config # file /etc/security/pam_env。
conf。 # (Replaces the `ENVIRON_FILE' setting from login。defs) auth required pam_env。
so # Standard Un*x authentication。 The "nullok" line allows passwordless # accounts。 @include common-auth # This allows certain extra groups to be granted to a user # based on things like time of day, tty, service, and user。
# Please uncomment and edit /etc/security/group。conf if you # wish to use this。
# (Replaces the `CONSOLE_GROUPS' option in login。 defs) # auth optional pam_group。
so # Uncomment and edit /etc/security/time。conf if you n 好，现在一个telnet我们就在debian下面架设好了，当然最后一步本人不建议你做 因为telnet是内镶在xinetd这个服务里面的，所以如果你要启动或者是要停止该服务就要 root@2[/]# /etc/init。
d/xinetd force-reload reload restart start stop 看上面的自己选择 希望我的回答可以帮到你。
168。1。254。 Escape character is '^]'。 lcnja。 8800。org login: root Login incorrect lcnja。
8800。org login: lcnja Password: Last login: Mon Sep 27 20:51:33 2004 from localhost。 localdomain on pts/3 Linux debian 2。
6。8-1-686 #1 Tue Sep 14 00:22:58 EDT 2004 i686 GNU/Linux The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright。
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law。
lcnja@lcnja:~$ 从上面我们可以看到我们已经连接成功了，但是使用root连接的时候会失败，因为默认的安全设置是限制root用户使用telnet连接主机的 本来因为telnet是明文传输的，所以处于安全考虑才限制了root从telnet登陆，如果你需要使用，那么如下修改 root@2[/]# nano /etc/pam。
d/login # # The PAM configuration file for the Shadow `login' service # # NOTE: If you use a session module (such as kerberos or NIS+) # that retains persistent credentials (like key caches, etc), you # need to enable the `CLOSE_SESSIONS' option in /etc/login。
defs # in order for login to stay around until after logout to call # pam_close_session() and cleanup。
# # Outputs an issue file prior to each login prompt (Replaces the # ISSUE_FILE option from login。
defs)。 Uncomment for use # auth required pam_issue。so issue=/etc/issue # Disallows root logins except on tty's listed in /etc/securetty # (Replaces the `CONSOLE' setting from login。
defs) #把下面在行注释掉 # auth requisite pam_securetty。so # Disallows other than root logins when /etc/nologin exists # (Replaces the `NOLOGINS_FILE' option from login。
defs) auth requisite pam_nologin。so # This module parses /etc/environment (the standard for setting # environ vars) and also allows you to use an extended config # file /etc/security/pam_env。
conf。 # (Replaces the `ENVIRON_FILE' setting from login。defs) auth required pam_env。
so # Standard Un*x authentication。 The "nullok" line allows passwordless # accounts。 @include common-auth # This allows certain extra groups to be granted to a user # based on things like time of day, tty, service, and user。
# Please uncomment and edit /etc/security/group。conf if you # wish to use this。
# (Replaces the `CONSOLE_GROUPS' option in login。 defs) # auth optional pam_group。
so # Uncomment and edit /etc/security/time。conf if you n 好，现在一个telnet我们就在debian下面架设好了，当然最后一步本人不建议你做 因为telnet是内镶在xinetd这个服务里面的，所以如果你要启动或者是要停止该服务就要 root@2[/]# /etc/init。
d/xinetd force-reload reload restart start stop 看上面的自己选择 希望我的回答可以帮到你。
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