Admin WebSite disappears soon after reboot - local login still possible

[Oliver Kuepfer]

Dear All

I do not know why and when this started, but I cannot login from "external" of the VM soon after reboot.
If I am fast enough, I get the Login Page and the Scrollout Logo, but nothing more, right after reboot.
Once this happens, the WebServer is irresponsive from this moment onwards, when connecting from anything else than the localhost.

And yes - the webserver and service seams to be running - i can login from Srollout F1 Console and everything is there and works fine.

First guess - Firewall ufw is not active. Any ideas?

KR

[Oliver Kuepfer]

Details
a) I can ping the host
b) Its working - sending / receiving mails
c) Its ubuntu 18.04
d) Disabling the Firwall in "Scrollout" helps - the question is- where is the config for this?

KR

[Oliver Kuepfer]

Sorry - I found the problem solution while writing the above

--> if you are not using the "default private IP Ranges such as 10.x.x.x. or 192.168.x.x. or 172.16.x.x you have to add your IP Range as Trusted Range as follows

sudo iptables -A INPUT -p icmp -m iprange --src-range [your ip Rang in format xxx.xxx.xxx.xxx-xxx.xxx.xxx.xxx] -j ACCEPT.
sudo iptables -A INPUT -p tcp -m multiport --dports 22,25,80,443,143,993,465,587 -m iprange --src-range [your ip Rang in format xxx.xxx.xxx.xxx-xxx.xxx.xxx.xxx] -j ACCEPT.

Interestingly this helped - even if I do not understand why mailing worked.

[Oliver Kuepfer]

replace xxx.xxx.xxx.xxx-xxx.xxx.xxx.xxx with [your first IP]-[your last IP]

[Marius Gologan]

Most probably the issue is caused by fail2ban blocking your IP.
You can whitelist in /etc/fail2ban/jail.local
ignoreip = add your IP (in CIDR format) here.

[cricket league]

After every reboot, the admin website for the https://cricketleegue.com/ disappears automatically. This issue is causing interruptions in managing teams, schedules, and scores. A stable setup is needed so that the admin panel remains accessible even after restarting the system.