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Full Discussion: Help needed in fixing port issue - Urgent
Operating Systems Linux Red Hat Help needed in fixing port issue - Urgent Post 302468322 by senor.ram on Tuesday 2nd of November 2010 10:57:12 AM
Old 11-02-2010
Help needed in fixing port issue - Urgent
Hi,
One of our web application is running in Linux and using apache web servers. Application is hosted in port 4080 (for soap requests) and port 9999, and its serving behind a vip and cname. Initially it was working fine in another server and recently (2 months back) we have moved to the new server and from there onwards often ports 4080 and 9999 are failing.
As per our analysis there is no problem in the load balancer where the vip is served and also we didn't see any issues in the apache/application logs. But after checking with networking teams we found that at the time of port failures, health check (status.html) for the vip is failing and that causing the issue. Sometimes within 5 mins ports are coming up automatically without taking any actions and sometimes its not coming up and we are restarting the apache services.
We could not able to figure out whats the problem here, could you please someone help me how I can find the root cause of the issue.
Its a P1 production issue, please help me on this.

Thanks.
 

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LEARN ABOUT DEBIAN

cachemgr.cgi

cachemgr.cgi(8) 					      System Manager's Manual						   cachemgr.cgi(8)

NAME

       cachemgr.cgi - squid HTTP proxy manager interface

SYNOPSIS

       http://your.server/cgi-bin/cachemgr.cgi

DESCRIPTION

       The  cache  manager (cachemgr.cgi) is a CGI utility for displaying statistics about the Squid HTTP proxy process as it runs. The cache man-
       ager is a convenient way to manage the cache and view statistics without logging into the server.

FILES

       ./cachemgr.conf
       @DEFAULT_CACHEMGR_CONFIG@
	      The access configuration file defining which Squid servers may be managed via this  cachemgr.cgi	program.  Each	line  specifies  a
	      server:port followed by an optional description

	      The  server  name  may  contain  shell wildcard characters such as *, [] etc.  A quick selection dropdown menu is automatically con-
	      structed from the simple server names.

	      Specifying :port is optional. If not specified then the default proxy port is assumed. :* or :any matches any  port  on  the  target
	      server.

SECURITY

       cachemgr.cgi calls the requested server on the requested port using HTTP and returns a formatted version of the response. To avoid abuse it
       is recommended to configure your web server to restrict access to the cachemgr.cgi program.

       Configuration examples for many common web servers can be found in the Squid FAQ.

SEE ALSO

       squid(8)
       The Squid FAQ, Chapter 9 The Cache Manager

							      Squid Web Proxy 3.1.20						   cachemgr.cgi(8)
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