Re: apache 2 mod_security iptables

Am 26.12.20 um 10:11 schrieb jin&hitman&Barracuda:
> Hi,
> 
> I've used failban for a bunch of smtp servers and it didn't go well. But 
> there is another project (crowdsec) and i guess that it is worth to 
> mention here. The project have many features which failban don't have. I 
> haven't try it yet but i will soon. May be you'd like to look at it.
> 
> Crowdsec: A Fail2Ban alternative written in Go - 
> https://github.com/crowdsecurity/crowdsec 
> <https://github.com/crowdsecurity/crowdsec>
> 
> By the way, while i was using failban, i had a script (which i wrote) to 
> add/remove ip adresses to openbsd firewall which is a lot easier than 
> iptables.

you don't write iptables rules for each and every address

https://ipset.netfilter.org/ is your friend
https://ipset.netfilter.org/ipset.man.html

* you have *one* iptables rule with the ipset match
* one command adds or removes and ip to the set
* it's dramatically faster -> hash-table
* you can block millions of ips without performance drop

> On Sat, Dec 26, 2020, 11:37 Jeffery Wilkins <[email protected] 
> <mailto:[email protected]>> wrote:
> 
>     im looking for some people who host http servers (apache/nginx) and who
>     are familiar with mod_security and iptables firewalls
>     the setup that I am after is if an IP address hits my website and
>     does a
>     typical vuln scan my web server sends them back no response and they
>     silently get added to an iptables ipset blacklist that lasts for 1 week
>     I already have mod_security (OWASP RULES) on my apache 2 server at
>     (192.168.2.10) and a pfsense style firewall at (192.168.2.1)
>     kind of like a web server honeypot if you will
>     my current setup is already pretty powerful if you even send a simple
>     TCP SYN packet to port 21,22 or even 23 you automatically get added to
>     my routers firewall and dropped for 7 days for both in and outbound
>     forgive me for asking alot but I really want to buckle down on these
>     stupid automated vuln scanners and keep them off my network
>     I have already looked into things like fail2ban but that only protects
>     the webserver itself and does not integrate with my routers firewall at
>     all protecting the network as a whole


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