Squid error no running copy redhat

squid error no running copy redhat

instead I have to modify it so when machines saw that it was a local machines host name and not a URL they didnt try to use the proxy. " squid: ERROR: No running copy" error appears in /var/log/messages while rebooting the OS. Environment. Red Hat Enterprise Linux 7; Squid 3.3. If you integrated Websense software with the Squid Web Proxy Cache on a machine running the Red Hat Enterprise Linux 4.7 operating system, and Websense. squid error no running copy redhat 0 Invalid entries.
2009/12/18 15:35:30

Squid cant resolve local server address from RedHat Linux Server

I have a very curious problem on my RedHat linux Server, squid error no running copy redhat. I have a Squid proxy server installed and operating wonderfully for WAN addresses. However when I try to access my local MediaWiki system I get

When I restart squid I am able to access these local addresses for about 5 minutes, but then this same message comes back. Now I have verified that I can ping ServerName just fine, so the name resolution isn't actually the issue.

I have also added the lines to my squid.conf, which all the instructions I find online seem to indicate should solve the issue.

(NOTE: Names have been changed to protect the innocent)

I then also added:

Same result (And there was some weird message from aclParseIpData warning me about my netmask making away part of my specified IP), which I thought was a very odd message indeed.

asked Apr 4, 2011 at 18:58

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dynamphorousdynamphorous

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grep squid PID TTY STAT TIME COMMAND 2267 ? Ss 0:00 /usr/sbin/squid-ipv6 -D -sYC 2735 pts/0 S+ squid error no running copy redhat 0:00 grep squid 8893 ? Rl 2:57 (squid) -D -sYC 8894 ? Ss 0:17 /bin/bash /etc/squid3/helper/redirector.sh

You want the (squid) process id, 8893 in this case.

The first solution is to create the PID file yourself and put the process id number there, squid error no running copy redhat. For example:

echo 8893 > /usr/local/squid/logs/squid.pid
  • /!\ Be careful of file permissions. It's no use having a .pid file if squid can't update it when things change.

The second is to use the above technique to find the Squid process id. Then to send the process a HUP signal, which is the same as squid -k reconfigure:

kill -SIGHUP 8893

The reconfigure process creates a new PID file automatically.

FATAL: getgrnam failed to find groupid for effective group 'nogroup'

You are probably starting Squid as root. Squid is trying to find a group-id that doesn't have any special priveleges that it will run as. The default is nogroup, but this may not be defined on your system.

The best fix for this is to assign squid a low-privilege user-id and assign that uerid to a group-id. There is a good chance that nobody will work for you as part of group nogroup.

Alternatively in older Squid the cache_effective_group in squid.conf my be changed to the name of an unpriveledged group from /etc/group. There is a good chance that nobody will work for you.

Squid uses 100% CPU

There may be many causes for this.

Andrew Doroshenko reports that removing /dev/null, or mounting a filesystem with the nodev option, can cause Squid to use 100% of CPU. His suggested solution is to "touch /dev/null."

Webmin's ''cachemgr.cgi'' crashes the operating system

Mikael Andersson reports that clicking on Webmin's cachemgr.cgi link creates numerous instances of cachemgr.cgi that quickly consume all available memory and brings the system to its knees.

Joe Cooper reports this to be caused by SSL problems in some outdated browsers (mainly Netscape 6.x/Mozilla) if your Webmin is SSL enabled. Try with a more current browser or disable SSL encryption in Webmin.

Segment Violation at startup or upon first request

Some versions of GCC (notably 2.95.1 through 2.95.4 at least) have bugs with compiler optimization. These GCC bugs squid error no running copy redhat cause NULL pointer accesses in Squid, resulting in a "FATAL: Received Segment Violation.dying" message and a core dump.

urlParse: Illegal character in hostname 'proxy.mydomain.com:8080proxy.mydomain.com'

By Yomler of fnac.net

A combination of a bad configuration of Internet Explorer and any application which use the cydoor DLLs will produce the entry in the log. See cydoor.com for a complete list.

The bad configuration of IE is the use of a active configuration script (proxy.pac) and an active or inactive, squid error no running copy redhat, but filled proxy settings. IE will only use the proxy.pac. Cydoor aps will use both and will generate the errors.

Disabling the old proxy settings in IE is not enought, you should delete them completely and only use the proxy.pac for example.

Requests for international domain names do not work

by HenrikNordström.

Some people have asked why requests for domain names using national symbols as "supported" by the certain domain registrars does not work in Squid. Squid error no running copy redhat is because there as of yet is no standard on how to manage national characters in the current Internet protocols such as HTTP or DNS. The current Internet standards is very strict on what is an acceptable hostname and only accepts A-Z a-z 0-9 and - in Internet hostname labels. Anything outside this is outside the error push ebp x64 Internet standards and will cause interoperability issues such as the problems seen with such names and Squid.

When there is a consensus in the DNS and HTTP standardization groups on how to handle international domain names Squid will be changed to support this if any changes to Squid will be required.

If you are interested in the progress of the standardization process for international domain names please see the IETF IDN working group's dedicated page.

Why do I sometimes get "Zero Sized Reply"?

This happens when Squid makes a TCP connection to an origin server, but for some reason, the connection is closed before Squid reads any data. Depending on various factors, Squid may be able to retry the request again. If you see the "Zero Sized Reply" error message, it means that Squid was unable to retry, or that all retry attempts also failed.

What causes a connection to close prematurely? It could be a number of things, including:

  • An overloaded origin server.
  • TCP implementation/interoperability bugs. See the ./SystemWeirdnesses for details.

  • Race conditions with HTTP persistent connections.
  • Buggy or misconfigured NAT boxes, firewalls, and load-balancers.
  • Denial of service attacks.
  • Utilizing TCP blackholing on FreeBSD (check ./SystemWeirdnesses).

You may be able to use tcpdump to track down and observe the problem.

  • {i} Some users believe the problem is caused by very large cookies. One user reports that his Zero Sized Reply problem went away when he told Internet Explorer to not accept squid error no running copy redhat cookies.

Here are some things you can try to reduce the occurance of the Zero Sized Reply error:

  • Delete or rename your cookie file and configure your browser to prompt you before accepting any new cookies.
  • Disable HTTP persistent connections with the server_persistent_connections and client_persistent_connections directives.

  • Disable any advanced TCP features on the Squid system. Disable ECN on Linux with echo 0 > /proc/sys/net/ipv4/tcp_ecn/, squid error no running copy redhat.

  • (!) Upgrade to Squid-2.6 or later to work around a Host header related bug in Cisco PIX HTTP inspection. The Cisco PIX firewall wrongly assumes the Host header can be found in the first packet of the request.

If this error causes serious problems for you and the above does not help, Squid developers would be happy to help you uncover the problem. However, we will require high-quality debugging information from you, such as tcpdump output, server IP addresses, operating system versions, and access.log entries with full HTTP headers.

If you want to make Squid give the Zero Sized error on demand, you can use a short C program. Simply compile and start the program on a system that doesn't already have a server running on port 80. Then try to connect to this fake server through Squid.

Why do I get "The request or reply is too large" errors?

by Grzegorz Janoszka

This error message appears when you try downloading large file using GET or uploading it using POST/PUT. There are several parameters to look for:

These two are set to 0 by default, which means no limits at all. They should not be limited unless you really know how that affects your squid behavior. Or at all in standard proxy.

These two default to 64kB starting from Squid-3.1. Earlier versions of Squid had defaults as low as 2 error exit delayed from. Squid error no running copy redhat some rather rare circumstances even 64kB is too low, so you can increase this value.

Negative or very large numbers in Store Directory Statistics, or constant complaints about cache above limit

In some situations where swap.state has been corrupted Squid can be very confused about how much data it has in the cache. Such corruption may happen after a power failure or similar fatal event. To recover first stop Squid, then runtime error delphi the swap.state files from each cache directory and then start Squid again. Squid will automatically rebuild the swap.state index from the cached files reasonably well.

If this does not work or causes too high load on your server due to the reindexing of the cache then delete the cache content as explained in ./OperatingSquid.

Problems with Windows update


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SquidFaq/TroubleShooting (last edited 2015-09-03 20:12:49 by Eliezer Croitoru)