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Full Discussion: being probed Fedora core 2
Operating Systems Linux being probed Fedora core 2 Post 59068 by dangral on Wednesday 8th of December 2004 09:11:30 PM
Old 12-08-2004
being probed Fedora core 2
Lucky me...someone's trying to hack into my mythtv box through ssh. Can I make a policy or something similar to refuse connections from a specific IP after a certain amount of failed logins?

attached is some of the output from /var/log/messages

Quote:
Dec 5 08:12:38 localhost sshd[12129]: Did not receive identification string from ::ffff:221.162.104.14
Dec 5 08:22:09 localhost sshd[12130]: Failed password for nobody from ::ffff:221.162.104.14 port 4760 ssh2
Dec 5 08:22:12 localhost sshd[12132]: Illegal user patrick from ::ffff:221.162.104.14
Dec 5 08:22:14 localhost sshd[12132]: Failed password for illegal user patrick from ::ffff:221.162.104.14 port 4925 ssh2
Dec 5 08:22:16 localhost sshd[12134]: Illegal user patrick from ::ffff:221.162.104.14
Dec 5 08:22:19 localhost sshd[12134]: Failed password for illegal user patrick from ::ffff:221.162.104.14 port 1092 ssh2
Dec 5 08:22:24 localhost sshd[12136]: Failed password for root from ::ffff:221.162.104.14 port 1236 ssh2
Dec 5 08:22:28 localhost sshd[12138]: Failed password for root from ::ffff:221.162.104.14 port 1368 ssh2
Dec 5 08:22:33 localhost sshd[12140]: Failed password for root from ::ffff:221.162.104.14 port 1509 ssh2
Dec 5 08:22:38 localhost sshd[12142]: Failed password for root from ::ffff:221.162.104.14 port 1635 ssh2
Dec 5 08:22:43 localhost sshd[12144]: Failed password for root from ::ffff:221.162.104.14 port 1780 ssh2
Dec 5 08:22:45 localhost sshd[12146]: Illegal user rolo from ::ffff:221.162.104.14
Dec 5 08:22:48 localhost sshd[12146]: Failed password for illegal user rolo from ::ffff:221.162.104.14 port 1902 ssh2
Dec 5 08:22:50 localhost sshd[12148]: Illegal user iceuser from ::ffff:221.162.104.14
Dec 5 08:22:52 localhost sshd[12148]: Failed password for illegal user iceuser from ::ffff:221.162.104.14 port 2042 ssh2
Dec 5 08:22:55 localhost sshd[12150]: Illegal user horde from ::ffff:221.162.104.14
Dec 5 08:22:57 localhost sshd[12150]: Failed password for illegal user horde from ::ffff:221.162.104.14 port 2182 ssh2
Dec 5 08:22:59 localhost sshd[12152]: Illegal user cyrus from ::ffff:221.162.104.14
Dec 5 08:23:02 localhost sshd[12152]: Failed password for illegal user cyrus from ::ffff:221.162.104.14 port 2322 ssh2
Dec 5 08:23:04 localhost sshd[12154]: Illegal user www from ::ffff:221.162.104.14
Dec 5 08:23:06 localhost sshd[12154]: Failed password for illegal user www from ::ffff:221.162.104.14 port 2447 ssh2
Dec 5 08:23:09 localhost sshd[12156]: Illegal user wwwrun from ::ffff:221.162.104.14
 

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LEARN ABOUT OSF1

snmp_traprcv

snmp_traprcv(8) 					      System Manager's Manual						   snmp_traprcv(8)

NAME

       snmp_traprcv - A program that listens for SNMP trap messages and prints any it receives

SYNOPSIS

       /usr/sbin/snmp_traprcv [-d] [-tcp] [-p port]

OPTIONS

       Sends  a  hexadecimal  dump of the received packet to stdout.  Specifies that the TCP transport be used instead of the UDP transport.  If a
       connection cannot be established, the program silently receives the trap on the standard transport address (UDP 162).  Specifies  the  port
       number on the local host on which to listen to messages. The default is 162, the well-known SNMP trap port.

DESCRIPTION

       The  snmp_traprcv program listens on the SNMP Trap port specified in the /etc/services file.  If no entry exists in the /etc/services file,
       the program listens on port 162.  If any SNMP trap messages arrive, snmp_traprcv prints them to stdout.	The program runs until	terminated
       by typing Ctrl/c.

RESTRICTIONS

       When using the default or well-known port, you must have root privileges in order to run this program.  The program may not be able to bind
       to the default or specified port if other software on the system is already bound to that port.

SEE ALSO

       Commands: snmpd(8), snmp_request(8), snmp_trapsnd(8)

																   snmp_traprcv(8)
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