5 Things to Check Before Blaming the Firewall
  

rizzuan Lv2Posted 2026-Jul-07 14:34

Many administrators immediately suspect the firewall whenever users cannot access an application.

Before changing firewall policies, I usually verify these items:

DNS resolution
Gateway routing
Server availability
Client network configuration
Firewall logs

In many cases, the firewall is not actually the root cause.

What is your troubleshooting sequence?

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AR Lv3Posted 2026-Jul-09 12:07
  
Thanks for sharing!
Newbie517762 Lv5Posted 2026-Jul-09 08:33
  
[Phase 1: Client] -> [Phase 2: Network L3] -> [Phase 3: DNS] -> [Phase 4: Firewall Logs] -> [Phase 5: Server L7]
fuadmahbubun Lv2Posted 2026-Jul-08 09:41
  
Thank you for sharing!
Humayun Ahmed Lv4Posted 2026-Jul-07 15:47
  
Thanks to share!