If you've just installed a Red Hat (or Fedora) system and you find that even though the ssh daemon is running and you're very sure there's no firewall blocking your access, that you still are unable to ssh or telnet to the system, then you may have run into to firewall that gets installed with Red Hat (or Fedora).
A very easy way to flush all rules from that firewall can be done by running:
# iptables -FNow check again if you access your system through ssh and/or telnet.
If you found this useful, here's more on the same topic(s) in our blog:
- Disabling SELinux
- Accessing ILO through SSH tunnelling
- RHEL 7: Set up storage multi-pathing
- When was a password changed?
- RHEL: Delete multiple default gateways
UNIX Health Check delivers software to scan Linux and AIX systems for potential issues. Run our software on your system, and receive a report in just a few minutes. UNIX Health Check is an automated check list. It will report on perfomance, capacity, stability and security issues. It will alert on configurations that can be improved per best practices, or items that should be improved per audit guidelines. A report will be generated in the format you wish, and the report includes the issues discovered and information on how to solve the issues as well.
Interested in learning more?
Interested in learning more?
