I am receiving this error from a customer's SUB. From what I can gather, this error is generated when someone tries to login to the CCM from ssh and fails. What has me worried is the volume of these errors. They have been going non-stop for a day now. Is this an attack on the network? Here is a sample of the errors:
sshd(pam_unix): check pass; user unknown SeverityMatch - Alert sshd(pam_unix): check pass; user unknown SeverityMatch - Alert sshd(pam_unix): check pass; user unknown SeverityMatch - Alert sshd(pam_unix): check pass; user unknown
When a terminal server is connected to the serial port of a Cisco Unified Communications Manager server, the system generates a repeating alert message and corresponding syslog messages. Try to configure no exec on the lines that are connected to the console of the other devices.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...