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Auto block IP if request contains jndi

cn flag

I have a VPS running CentOS 7 and I have very limited technical knowhow. However, given the recent log4j exploit, I need to do a few things. I've updated all software and packages on my server. I don't think that I have log4j enabled, at least - not by me.

To add an extra layer to defend my VPS I feel its okay to auto block an IP if the request contains something with jndi. The users on the server don't use that (small group of people with nothing special webhosting requirements), so they won't be affected by any of this.

Can this be done? If so, can you point me in the right direction how to set this up?

mangohost

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