Re: [squid-users] Squid 100% CPU and possible attack

2015-10-22 Thread Amos Jeffries
On 23/10/2015 10:43 a.m., Job wrote: > Hello, > > sometimes, for about half an hour, tour Squid becomes unstable and, by typing > "top -s", Squid is taking the 100% of the CPU. > > In Squid's access.log, i see lots of entry like this: > > "Thu";"Oct";"22";"11:45:17";"2015";"21328";"192.168.1.25

Re: [squid-users] Squid 100% CPU and possible attack

2015-10-22 Thread Eliezer Croitoru
The simplest way is to use fail2ban. What OS are you using? it is possible an attack but it's not 100%. What you can do is to also disable access using the proxy to this destination IP and address. 100% CPU in many cases is not something odd but you can try fail2ban with a special rule to block

[squid-users] Squid 100% CPU and possible attack

2015-10-22 Thread Job
Hello, sometimes, for about half an hour, tour Squid becomes unstable and, by typing "top -s", Squid is taking the 100% of the CPU. In Squid's access.log, i see lots of entry like this: "Thu";"Oct";"22";"11:45:17";"2015";"21328";"192.168.1.250";"TCP_MISS/000";"0";"GET";"http://192.168.1.254:808