Proxy

/etc/environment

PROXY_ENABLED="yes"
proxy_enabled="yes"
all_proxy=http://10.10.10.10:8080
http_proxy=http://10.10.10.10:8080
https_proxy=http://10.10.10.10:8080
socks_proxy=http://10.10.10.10:1080
ftp_proxy=http://10.10.10.10:2121
ALL_PROXY=http://10.10.10.10:8080
HTTP_PROXY=http://10.10.10.10:8080
HTTPS_PROXY=http://10.10.10.10:8080
SOCKS_PROXY=http://10.10.10.10:1080
FTP_PROXY=http://10.10.10.10:2121

Проверка:

env | grep proxy

/etc/rc.local

all_proxy=http://10.10.10.10:8080
ALL_PROXY="$all_proxy"
export all_proxy ALL_PROXY
export ALL_PROXY ALL_PROXY

http_proxy=http://10.10.10.10:8080
HTTP_PROXY="$http_proxy"
export http_proxy HTTP_PROXY
export HTTP_PROXY HTTP_PROXY

https_proxy=http://10.10.10.10:8080
HTTPS_PROXY="$https_proxy"
export https_proxy HTTPS_PROXY
export HTTPS_PROXY HTTPS_PROXY

socks_proxy=http://10.10.10.10:1080
SOCKS_PROXY="$socks_proxy"
export socks_proxy SOCKS_PROXY
export SOCKS_PROXY SOCKS_PROXY

ftp_proxy=http://10.10.10.10:2121
FTP_PROXY="$ftp_proxy"
export ftp_proxy FTP_PROXY
export FTP_PROXY FTP_PROXY

APT
/etc/apt/apt.conf.d/proxy

Acquire::http::Proxy "http://10.10.10.10:8080";
Acquire::https::Proxy "https://10.10.10.10:8080";
Acquire::socks::Proxy "http://10.10.10.10:1080";
Acquire::ftp::Proxy "http://10.10.10.10:2121";
Acquire::::Proxy "true";

Обратить внимание:
lxproxy
fsproxy



Строго говоря:

iptables -t nat -A OUTPUT -p tcp -j REDIRECT --to-ports 8080
iptables -t nat -A OUTPUT -p udp -j REDIRECT --to-ports 8080