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jcrodriguez-dis / moodle-mod_vpl

Virtual Programming Lab for Moodle (Module)
GNU General Public License v3.0
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Whitelisting an IP address #133

Closed bodypheo closed 1 year ago

bodypheo commented 2 years ago

Hello, we are having an issue with VPL. VPL is blacklisting the haproxy that serves it. For some reason we don't get to understand. I tried to add the haproxy ip in the ignoreip in fail2ban config file: /etc/fail2ban/jail.conf but VPL keeps blacklisting, so haproxy can't serve the VPL service. Is thre any other way to whitelist the IP in VPL? Thanks

jcrodriguez-dis commented 2 years ago

Hello. No, the anti-DoS system in the VPL execution system does not have a whitelist. If you increase the log level you may know why the VPL system blocks your HAProxy. To avoid the problem you can stop the anti-DoS system by setting fail2ban parameter to 0. I don't know if it is relevant, but I think that the servers of VPL execution system, due to its architecture, fail if controlled by a load balancer.

Best regards, Juan Carlos.