Hali! Ezt vettem eszre az /var/log/messages -ben, mikozben buvoltem egy USB-s infra csatlakozot: Jul 12 21:17:48 sled-x86-64 sshd[15810]: Invalid user matematica from 218.237.65.25 Jul 12 21:17:53 sled-x86-64 sshd[15886]: Invalid user romana from 218.237.65.25 Jul 12 21:17:57 sled-x86-64 sshd[15888]: Invalid user engleza from 218.237.65.25 Jul 12 21:18:00 sled-x86-64 sshd[15890]: Invalid user germana from 218.237.65.25 Jul 12 21:19:25 sled-x86-64 sshd[15929]: Invalid user granta from 218.237.65.25 Jul 12 21:21:49 sled-x86-64 sshd[15975]: Invalid user amal from 218.237.65.25 Jul 12 21:24:57 sled-x86-64 sshd[16021]: Invalid user lieu from 218.237.65.25 Jul 12 21:25:03 sled-x86-64 sshd[16029]: Invalid user lilly from 218.237.65.25 Jul 12 21:25:09 sled-x86-64 sshd[16031]: Invalid user linda from 218.237.65.25 Jul 12 21:27:30 sled-x86-64 sshd[16584]: Invalid user angel from 218.237.65.25 [...] ul 12 21:46:51 sled-x86-64 sshd[18717]: Failed password for root from 218.237.65.25 port 37267 ssh2 Jul 12 21:47:00 sled-x86-64 sshd[18720]: Failed password for root from 218.237.65.25 port 39418 ssh2 Jul 12 21:47:08 sled-x86-64 sshd[18796]: Failed password for root from 218.237.65.25 port 41112 ssh2 Jul 12 21:47:29 sled-x86-64 kernel: ip_tables: (C) 2000-2006 Netfilter Core Team Jul 12 21:47:43 sled-x86-64 sshd[19419]: Failed password for root from 218.237.65.25 port 49219 ssh2 Jul 12 21:47:50 sled-x86-64 sshd[19454]: Failed password for root from 218.237.65.25 port 51454 ssh2 Jul 12 21:47:56 sled-x86-64 sshd[19544]: Failed password for root from 218.237.65.25 port 52788 ssh2 Jul 12 21:48:02 sled-x86-64 sshd[19629]: Failed password for root from 218.237.65.25 port 54202 ssh2 Jul 12 21:48:06 sled-x86-64 sshd[19754]: Failed password for root from 218.237.65.25 port 55378 ssh2 Jul 12 21:48:09 sled-x86-64 sshd[19798]: Failed password for root from 218.237.65.25 port 56189 ssh2 Jul 12 21:48:13 sled-x86-64 sshd[19853]: Failed password for root from 218.237.65.25 port 56977 ssh2 No, gyorsan rovidre zartam a temat a router tuzfalan:) Action: DENY Name: "Kocsog" Source: LAN,218.237.65.25 Destination: LAN,192.168.1.1-192.168.1.254 Protocol: *,0-34463 Hogymikvannakkkkk.... Balazs