Allow internet access through proxy and ssh port forwarding

Step 1) install squid on 132.1.16.100 box

dev@kvm2:~$ sudo apt-get install squid3

dev@kvm2:~$ ps ax|grep squid

11700 ?        Ss     0:00 /usr/sbin/squid3 -N -YC -f /etc/squid3/squid.conf

11704 ?        Ss     0:00 (logfile-daemon) /var/log/squid3/access.log

11783 pts/3    S+     0:00 grep --color=auto squid

dev@kvm2:~$ telnet localhost 3128

Trying 127.0.0.1...

Connected to localhost.

Escape character is '^]'.

^]

dev@kvm2:~$ export HTTP_PROXY="localhost:3128"

dev@kvm2:~$ wget --proxy=on google.com

 [ <=>                                                                           ] 14,396      --.-K/s   in 0.01s

2018-10-19 11:32:09 (1.21 MB/s) - ‘index.html’ saved [14426]

dev@kvm2:~$ export HTTPS_PROXY="localhost:3128"

dev@kvm2:~$ wget --proxy=on google.com

    [ <=>                                                                           ] 14,396      --.-K/s   in 0.01s

2018-10-19 11:32:26 (1.19 MB/s) - ‘index.html.1’ saved [14396]

root@kvm2:~# grep "http_access allow all" /etc/squid3/squid.conf

http_access allow all

root@kvm2:~#

restart the squid service

root@kvm2:~# ps -ef | grep squid

root     13143     1  0 11:38 ?        00:00:00 sudo /usr/sbin/squid3 -N -YC -f /etc/squid3/squid.conf

proxy    13144 13143  0 11:38 ?        00:00:07 /usr/sbin/squid3 -N -YC -f /etc/squid3/squid.conf

proxy    13145 13144  0 11:38 ?        00:00:00 (logfile-daemon) /var/log/squid3/access.log

root     37164 37034  0 16:44 pts/6    00:00:00 grep --color=auto squid

root@kvm2:~#

step 2) ssh port forward on 172.16.30153

C:\Users\opsadmin>ssh -R 9002:132.1.16.100:3128 ansible@172.16.30.153

Last login: Fri Oct 19 11:45:22 2018 from 10.212.134.202

ansible@ubuntuTest:~$ telnet localhost 9002

Trying ::1...

Connected to localhost.

Escape character is '^]'.

^]

ansible@ubuntuTest:~$ export http_proxy="localhost:9002"

ansible@ubuntuTest:~$ export https_proxy="localhost:9002"

ansible@ubuntuTest:~$ wget --proxy=on google.com

--2018-10-19 11:49:20--  http://google.com/

Resolving localhost (localhost)... ::1, 127.0.0.1

Connecting to localhost (localhost)|::1|:9002... connected.

Proxy request sent, awaiting response... 301 Moved Permanently

Location: http://www.google.com/ [following]

--2018-10-19 11:49:21--  http://www.google.com/

Reusing existing connection to [localhost]:9002.

Proxy request sent, awaiting response... 200 OK

Length: unspecified [text/html]

Saving to: ‘index.html’

    [ <=>                                                                           ] 14,393      --.-K/s   in 0.03s

2018-10-19 11:49:21 (550 KB/s) - ‘index.html’ saved [14393]

root@ubuntuTest:/var/www/html/zabbix# cat /etc/apt/apt.conf

Acquire::http::Proxy "http://localhost:9002";

Acquire::https::Proxy "https://localhost:9002";

Acquire::ftp::Proxy "ftp://localhost:9002";

root@ubuntuTest:/var/www/html/zabbix#