Problems When You Try To Log In; Your Printer Will Not Work; Apache-Based Httpd Service/Sendmail Hangs During Startup - Red Hat ENTERPRISE LINUX 3 - INSTALLATION GUIDE FOR IBM S-390 AND IBM ESERVER ZSERIES Installation Manual

42 Appendix D. Troubleshooting Your Installation of Red Hat Enterprise Linux
The command connects to the remote X server via XDMCP (replace s390vm.example.com with
the hostname of the remote X server) and displays the remote graphical login screen on display :1 of
the client system (usually accessible by using the [Ctrl]-[Alt]-[F8] key combination).
You may also access remote desktop sessions using a nested X server, which opens the remote
desktop as a window in your current X session. allows users to open a remote desktop nested
Xnest
within their local X session. For example, run using the following command, replacing
Xnest
s390vm.example.com with the hostname of the remote X server:
Xnest :1 -query s390vm.example.com
D.3.3. Problems When You Try to Log In
If you did not create a user account in the Setup Agent, log in as root and use the password you
assigned to root.
If you cannot remember your root password, boot your system as .
linux single
Once you have booted into single user mode and have access to the prompt, you must type
# passwd
, which allows you to enter a new password for root. At this point you can type
root shutdown -r
to reboot the system with the new root password.
now
If you cannot remember your user account password, you must become root. To become root, type
su
and enter your root password when prompted. Then, type . This allows you
- passwd username
! "
to enter a new password for the specified user account.
If the graphical login screen does not appear, check your hardware for compatibility issues. The Hard-
ware Compatibility List can be found at:
http://hardware.redhat.com/hcl/
D.3.4. Your Printer Will Not Work
If you are not sure how to set up your printer or are having trouble getting it to work properly, try
using the Printer Configuration Tool.
command at a shell prompt to launch the Printer Configura-
Type the
redhat-config-printer
tion Tool. If you are not root, it prompts you for the root password to continue.
D.3.5. Apache-based service/Sendmail Hangs During Startup
httpd
If you are having trouble with the Apache-based service or Sendmail hanging at startup, make
httpd
sure the following line is in the file:
/etc/hosts
127.0.0.1 localhost.localdomain localhost