Nagios Support Forum

Hello,
Following a server reboot, we are no more able to access the GUI. The login page keeps redirecting to itself. One topic on the FAQs page suggest to fix time on the Nagios server in order to solve the issue.
Although the time settings are correct on the Nagios server, the issue persists.
Thanks for your support.
FAO

Hello Fao, Did this happen after upgrading from an old Nagios XI installation to the recently released version? (R3.0)

No upgrade was involved.
Fortunately, the issue is solved. The partition hosting the /var folder was full and then the system couldn't log any new http session.