[Contents] [Index]

About This Document>>     Introduction to SSH Secure Shell >>     Configuring SSH Secure Shell >>         Basic Configuration>>         Subconfigurations >>         Configuring SSH Secure Shell for TCP Wrappers Support             Troubleshooting TCP Wrappers         Configuring SSH2 for SSH1 Compatibility         Forwarding>>     Authentication >>     Log Messages >>     Using SSH Secure Shell >>     Tool Syntax>>     Technical Specifications >>

Troubleshooting TCP Wrappers

If configuring TCP wrappers causes problems, please check the following:

1. Make sure that you are not experiencing any network connectivity problems.
2. Make sure that SSH Secure Shell server is running:

   kill -0 `cat /var/run/sshd2_22.pid`
   

   or

   kill -0 `cat /etc/ssh2/sshd2_22.pid`
   

   If you receive the message "No such process", restart the sshd2 daemon.
3. Check your /etc/hosts.allow and /etc/hosts.deny files.
   • Ensure that the client's IP address or host name is correct.
   • If you are using a host name, you must supply the fully qualified domain name.
4. If you changed something in the sshd2_config file, you need to HUP the sshd2 daemon.
5. Run tcpdchk and tcpdmatch. These programs are used to analyze and report problems with your TCP Wrappers setup. Please see the man pages for more information on these commands.