Use the following commands to disable proxy: $ unset http_proxyĬool Tip: Stay anonymous during port scanning! Use Nmap + Tor + Prox圜hains! Safe and easy penetration testing! Read more → Automate Proxy Server Settings In Linux
| sed -e 's/.*Current IP Address: //' -e 's/<.*$//'Ĭompare the difference in the response time with the configured proxy and without it: $ time wget -q -O - \Ĭheck the Internet download speed through the proxy: $ wget -output-document=\ Than it is required to ensure that your public IP address has changed.Īlso it would be interesting to measure and compare response time of the remote resources and the Internet speed with and without proxy.Ĭheck the current proxy server settings: $ env | grep -i proxyĬheck your public IP address from the Linux command-line: $ wget -q -O - \ Test The Proxy Server From The Linux Command-LineĪs only you have configured a proxy it is time to ensure that it works as expected.įirst off all it is required to check that the proxy server settings are set in the corresponding proxy variables.
Special Characters: If your password contains special characters, you must replace them with ASCII codes, for example the at sign must be replaced by the %40 code, e.g. $ export ftp_proxy=" USER: PROXY_SERVER: PORT" $ export https_proxy=" USER: PROXY_SERVER: PORT" If a proxy server requires authentication, set the proxy variables as follows: $ export http_proxy=" USER: PROXY_SERVER: PORT" $ export https_proxy=" PROXY_SERVER: PORT"
Set these variables to configure Linux proxy server settings for the command-line tools: $ export http_proxy=" PROXY_SERVER: PORT"
If you don’t know yet which proxy server to use, you can take one from the lists of the free public proxy servers at the end of this article.Ĭool Tip: Need to improve security of the Linux system? Encrypt DNS traffic and get the protection from DNS spoofing! Read more → Export Proxy Server Settings ftp, wget, curl, ssh, apt-get, yum and others. These proxy server settings are used by the almost all Linux command-line utilities, e.g.
SSH, The Secure Shell: The Definitive GuideĪs an Amazon Associate we earn from qualifying purchases.To use a proxy on the Linux command-line, you can set the environment variables http_proxy, https_proxy or ftp_proxy, depending on the traffic type.Here are some helpful books if you need further help with SSH. This please feel free to E-mail me on SSH If you find any errors or have any suggestions regarding
This page useful, you may also be interested in how to make yourįaster. Hopefully this helps you to better understand SSH tunneling. Jabber client to use localhost as the server and the port 3000 that I had I was able to send my Google Talk traffic encrypted through the firewallīack to my server at home and then out to Google. For example, a firewall I was behind recently did not allow I then simply point my E-mail client to use localhost:2000 as the SMTP server and we're off to the races.Īnother useful feature of port forwarding is for getting around pesky firewall This essentially forwards the local port 2000 to port 25 on over, with nice benefit of being encrypted. Finally the -N instructs OpenSSH to not execute a command on the remote system. The -L 2000::25 is in the form of -L local-port:host:remote-port. This is followed by the username and server you are logging into. The -f tells ssh to go into the background just before it executes the command. I find that hotel firewalls, wireless access points,Īnd the other various NATing devices you end up behind while traveling often Server to avoid having to change SMTP servers, use SMTP-AUTH, etc. You can tunnel all of the traffic from your local box to a remote boxįor example I tunnel all of my outbound E-mail traffic back to my personal Setting up a simple SSH tunnel that I wanted to write up this Quick-Tip. I was surprised at how long it took me to find a good HOWTO on