.bashrc や /etc/profile.d/proxy.shなど。
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export HTTP_PROXY=http://172.16.2.26:8080
export HTTPS_PROXY=http://172.16.2.26:8080
export NO_PROXY=localhost,127.0.0.1,172.16.0.0/12
export http_proxy=http://172.16.2.26:8080
export https_proxy=http://172.16.2.26:8080
export no_proxy=localhost,127.0.0.1,172.16.0.0/12
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