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1. How to Install Varnish + Hitch Cache... How to Install Varnish + Hitch Cache for Apache on CentOS/RHEL8

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   # How to Install Varnish + Hitch Cache for Apache on CentOS/RHEL8

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   - Varnish Cache is a free open source, modern and `high-performance` web application accelerator. It is a fast reverse HTTP proxy that caches content to speed up your web server performance, by storing web content in server memory – in a cache. It is configured to run in front of an origin server such as Apache `(HTTPD)` webserver.

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2. The check file differs from the remo... The check file differs from the remote server using ssh commands.

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   # Compare remote server file using ssh commands

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   	# ssh user@remote-host "cat /home/root/file_remote" | diff  - file_local 

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   	# ssh -P<port> -l root <remote server ip> "cat  /home/root/file_remote" | diff - /home/root/local_server_file

3. Postgresql connection exceeded issue... Postgresql connection exceeded issue solve

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   # Postgresql

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   `Bash

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   psql -U postgres -c 'SHOW config_file'

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   psql -U postgres -c 'SHOW config_file'

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   psql -U postgres -c 'SHOW max_connections'

4. Free-switch outbound calling through... Free-switch outbound calling through Asterisk setup

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   # Freeswitch outbound calling through Asterisk 

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   ````bash

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   [cloud]

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   type=peer

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   host=X.X.X.X

5. Auto-dial script not running getting... Auto-dial script not running getting pycurl package import issue.

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   # -- autodial scriprt not running getting pycurl package import issue -- 

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     yum install openssl-devel

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     pip install --compile --install-option="--with-openssl" pycurl

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6. Resize root partition (or how to del... Resize root partition (or how to delete the default /home partition) on CentOS 8 through SSH

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   # Resize root partition (or how to delete the default /home partition) on CentOS 8 through SSH

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   This requires you to be able to ssh into the instance using the root user account and that no services be running as users out of /home on the target machine.

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   The examples are from a default installation with no customation-you NEED to know what you're working with for volumes/partitions to not horribly break things.

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