Hi, The IP 61.138.131.187 has just been banned by Fail2Ban after 2 attempts against apache-overflows. Here are more information about 61.138.131.187: % [whois.apnic.net node-5] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html inetnum: 61.138.128.0 - 61.138.191.255 netname: UNICOM-JL country: CN descr: China Unicom Jilin province network descr: China Unicom admin-c: CH1302-AP tech-c: WT92-AP status: ALLOCATED NON-PORTABLE changed: abuse@cnc-noc.net 20031016 mnt-by: MAINT-CNCGROUP mnt-lower: MAINT-CNCGROUP-JL mnt-routes: MAINT-CNCGROUP-RR changed: hm-changed@apnic.net 20040301 changed: hm-changed@apnic.net 20060124 changed: hm-changed@apnic.net 20090508 source: APNIC route: 61.138.128.0/18 descr: CNC Group CHINA169 Jilin Province Network country: CN origin: AS4837 mnt-by: MAINT-CNCGROUP-RR changed: abuse@cnc-noc.net 20060118 source: APNIC person: ChinaUnicom Hostmaster nic-hdl: CH1302-AP e-mail: abuse@cnc-noc.net address: No.21,Jin-Rong Street address: Beijing,100033 address: P.R.China phone: +86-10-66259764 fax-no: +86-10-66259764 country: CN changed: abuse@cnc-noc.net 20090408 mnt-by: MAINT-CNCGROUP source: APNIC person: Wang Tiegang nic-hdl: WT92-AP e-mail: jhli_jl@mail.jl.cn address: NO.3535,Renmin Street, ChangChun , address: Jilin province , 130021 , P.R. China phone: +86-431-5560792 fax-no: +86-431-5560816 country: CN changed: jhli_jl@mail.jl.cn 20060626 mnt-by: MAINT-CNCGROUP-JL source: APNIC Lines containing IP:61.138.131.187 in /var/log/apache*/*error.log /var/log/apache2/error.log:[Sat Mar 03 21:52:23 2012] [error] [client 61.138.131.187] Invalid method in request \x80w\x01\x03\x01 /var/log/apache2/error.log:[Sat Mar 03 21:52:23 2012] [error] [client 61.138.131.187] Invalid method in request \x80w\x01\x03\x01 /var/log/apache2/error.log:[Sat Mar 03 21:52:23 2012] [error] [client 61.138.131.187] File does not exist: /var/www/admin Regards, Fail2Ban