Re: apache 2 mod_security iptables

Am 26.12.20 um 10:42 schrieb Reindl Harald:
> 
> 
> 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

forgot the most important feature:
it supports auto-expire
you only care about add abusers

[root@firewall:~]$  ipset -L BLOCKED_DYNAMIC_PORTSCAN_IPV4 | head -n 50
Name: BLOCKED_DYNAMIC_PORTSCAN_IPV4
Type: hash:ip
Revision: 4
Header: family inet hashsize 1024 maxelem 65536 timeout 45
Size in memory: 98504
References: 3
Number of entries: 266
Members:
68.183.38.8 timeout 28
222.161.223.54 timeout 44
91.231.254.219 timeout 31
51.159.185.247 timeout 11
51.158.186.43 timeout 23
37.46.150.2 timeout 3
42.191.21.171 timeout 40
51.158.168.219 timeout 9
151.115.60.156 timeout 29
123.17.99.37 timeout 37
51.15.139.1 timeout 37
51.158.101.159 timeout 41
151.115.34.215 timeout 43
74.120.14.73 timeout 4
80.82.65.74 timeout 1
46.73.126.93 timeout 21
182.61.19.225 timeout 21
74.120.14.80 timeout 8
45.129.33.154 timeout 10
45.129.33.162 timeout 19
94.102.51.28 timeout 28
188.166.82.19 timeout 23
49.51.244.189 timeout 28
71.6.233.196 timeout 15
182.73.150.18 timeout 18
151.115.50.105 timeout 33
71.6.233.244 timeout 23
167.248.133.65 timeout 11
163.172.139.239 timeout 26
92.63.197.61 timeout 41
167.248.133.93 timeout 25
194.26.25.108 timeout 32
162.142.125.92 timeout 20
1.202.11.206 timeout 5
5.63.151.112 timeout 16
51.158.119.240 timeout 16
87.103.208.30 timeout 22
192.35.169.33 timeout 18
51.158.100.175 timeout 35
151.115.44.238 timeout 13
45.129.33.166 timeout 20
223.31.231.202 timeout 29
[root@firewall:~]$


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