Here are tips on configuring various OS and application software to use firewall proxies and overcome proxy issues.

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1 Overview Here are tips on configuring various OS and application software to use firewall proxies and overcome proxy issues. Disable Network Proxy Authentication Popup Know bug when remote connect to window manager GNOME, Xfce, etc... will see proxy authentication popup. Here how to disable this popup message. As root, create a file 20-no-show-proxy-dialog.pkla with the following content File /etc/polkit-1/localauthority/30-site.d/20-no-show-proxy-dialog.pkla Proxy [No Show Proxy Dialog] Identity=unix-user:* Action=org.freedesktop.packagekit.system-network-proxy-configure ResultAny=no ResultInactive=no ResultActive=no Proxy Exclusion Firefox ,localhost, /8, /16,.domain.com IE ;localhost;10.*; *.*;*.domain.com Command-line Three most common variables http_proxy https_proxy ftp_proxy Authentication Required No Domain http_proxy= If NTLM Authentication Using Domain http_proxy= http_proxy= Overview 1

2 CentOS / RHEL / Fedora Add the following lines to file /etc/profile will allow command-line programs to use proxy settings # Proxy settings PROXYURL= http_proxy=$proxyurl https_proxy=$proxyurl ftp_proxy=$proxyurl no_proxy=localhost, /8, /24,.somedomain.com export http_proxy https_proxy ftp_proxy no_proxy Authentication # Proxy settings PROXYURL= http_proxy=$proxyurl https_proxy=$proxyurl ftp_proxy=$proxyurl no_proxy=localhost, /8, /24,.somedomain.com export http_proxy https_proxy ftp_proxy no_proxy **INFO** Above, fill in proxy account username and password. Yum Add the following lines to file /etc/yum.conf in [main] section. [main] proxy= http_caching=packages Authentication proxy= proxy_username=your_user_name_here proxy_password=your_password_here **INFO** Above, fill in your proxy account username and password. CentOS / RHEL / Fedora 2

3 RPM RPM needs variable httpproxy set to proxy host before could get out to the Internet. e.g. Set both variables httpproxy and httpport # rpm --import --httpproxy proxyhost.somedomain.com --httpport 80 Ubuntu Set shell environment similar in section CentOS/RHEL should also work. Apt-get Add the following in file /etc/apt/apt.conf Acquire:: " Acquire:: " Acquire::ftp::Proxy "ftp://proxyhost.somedomain.com:80"; Authentication Required Acquire:: " Acquire:: " Acquire::ftp::Proxy "ftp://username:password@proxyhost.somedomain.com:80"; Software Here are some how-to configure software or app to use http proxy. Git **INFO** Syntax: git config --global http.proxy Once the above command ran, there should be a file created in user home directory ~/.gitconfig e.g. Clone a Git repository $ mkdir -p /tmp/x $ cd /tmp/x $ git config --global http.proxy RPM 3

4 $ git clone Cloning into hello-world... remote: Counting objects: 158, done. remote: Compressing objects: 100% (79/79), done. remote: Total 158 (delta 54), reused 157 (delta 54) Receiving objects: 100% (158/158), KiB, done. Resolving deltas: 100% (54/54), done. $ Wget Update content in file /etc/wgetrc by add the following proxy settings. e.g. configure for a Proxy. FROM # You can set the default proxies for Wget to use for http and ftp. # They will override the value in the environment. #http_proxy = #ftp_proxy = # If you do not want to use proxy at all, set this to off. #use_proxy = on TO # You can set the default proxies for Wget to use for http and ftp. # They will override the value in the environment. #http_proxy = #ftp_proxy = http_proxy = ftp_proxy = # If you do not want to use proxy at all, set this to off. #use_proxy = on use_proxy = on See Also External Link CentOS Proxy Configuration Configuring Firefox to use a proxy from the command line Use Auto Config Proxy PAC File For Specific Domain See Also 4

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