Reverse Proxy Implementation


Step1 : Check Squid is running or not

#ps –ef | grep squid

This command should give you

Five internal dns server running process

Two squid demon(squid –D)

One unlinked process.

If all the mentions process are running fine means, it indicates that your Squid server is running fine.

ps –ef | grep squid

root 31617 1 0 15:06 ? 00:00:00 /opt/squid/sbin/squid -D

squid 31619 31617 0 15:06 ? 00:00:00 (squid) -D

squid 31623 31619 0 15:06 ? 00:00:00 (dnsserver)

squid 31624 31619 0 15:06 ? 00:00:00 (dnsserver)

squid 31625 31619 0 15:06 ? 00:00:00 (dnsserver)

squid 31626 31619 0 15:06 ? 00:00:00 (dnsserver)

squid 31627 31619 0 15:06 ? 00:00:00 (dnsserver)

squid 31628 31619 0 15:06 ? 00:00:00 (unlinkd)


Step2 : Check back end server is able to access from your reverse proxy or not?

#links web425.example.co.in


Step3 : Check system default logs for any suspected activity.

#tail –f /var/log/messages


Step4 : Check squid access logs, cache logs, store logs if you can able to find any issues

#tail –f /opt/squid/var/logs/access.log

#tail –f /opt/squid/var/logs/cache.log

#tail –f /opt/squ
id/var/logs/store.log


Step5 : Check whether your syntx in squid is fine or not with the following commands

/opt/squid/sbin/squid -k check
/opt/squid/sbin/squid -k parse


Please comment your thoughts regarding this post:-)


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Surendra Anne

Mr Surendra Anne is from Vijayawada, Andhra Pradesh, India. He is a Linux/Open source supporter who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. He works as Devops Engineer with Taggle systems, an IOT automatic water metering company, Sydney . You can contact him at surendra (@) linuxnix dot com.

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