26
votes
Unable to add gpg key with apt-key behind a proxy
Here is a solution that uses http via curl instead of trying to proxy apt-key or gpg:
curl -sSL \
'http://keyserver.ubuntu.com/pks/lookup?op=get&search=0xBBEBDCB318AD50EC6865090613B00F1FD2C19886' ...
- 1,231
12
votes
How to unset the 'http_proxy' environment variable in Python
Each invocation of os.system() runs in its own subshell, with its own fresh environment:
>>> import os
>>> os.system("echo $$")
97678
0
>>> os.system("echo $$")
97679
0
You ...
- 79.2k
11
votes
Accepted
On-demand SSH Socks proxy through systemd user units with socket-activation doesn't restart as wished
Can /usr/bin/ssh really not accept systemd-passed sockets?
I think that's not too surprising, considering:
OpenSSH is an OpenBSD project
systemd only supports the Linux kernel
systemd support would ...
- 1,871
10
votes
Setting up Proxy Settings on Debian
The following is for general proxy, apt and wget and you can remove the user:password@ for a proxy that doesn't require it:
For General proxy:
touch /etc/profile.d/proxy.sh
add the following:
...
- 201
9
votes
On-demand SSH Socks proxy through systemd user units with socket-activation doesn't restart as wished
For future reference, i'm pasting below the systemd --user configuration files
for on-demand ssh-tunnel using systemd-socket-proxyd daemon,
with various enhancements and explanation comments:
~/....
- 593
9
votes
Accepted
netcat missing -x option
Looks like you have the "traditional" netcat (netcat-traditional) installed. The -x option is available in the OpenBSD netcat (netcat-openbsd). See also: What are the differences between ...
- 77.9k
8
votes
Accepted
Force an application's traffic through a SOCKS proxy
Wikipedia lists a number of open-source proxifiers. Of those, proxychains-ng seems to be the most actively developed, judging by GitHub activity.
To install and configure,
Download the latest release
...
- 7,827
8
votes
Accepted
Prevent requests to 127.0.0.1 from being forwarded to http_proxy
From wget man page:
ENVIRONMENT
Wget supports proxies for both HTTP and FTP retrievals. The standard way to specify proxy location, which Wget recognizes, is using the following environment ...
- 114k
7
votes
What tool can I use to sniff HTTP/HTTPS traffic?
mitmproxy/mitmdump
Equalivant to tcpdump for HTTPS is mitmdump. Here are the steps:
Install mitmproxy package (macOS: brew install mitmproxy).
Install mitmproxy CA certificate by the following ...
- 22.1k
6
votes
Serve Internet to remote machine via SSH session?
You can use -R flag with SOCKS4/5 behavior, this is built-in and it does not require a long command as proposed by @smammy:
[hasinet]$ ssh -R 1080 noinet
You can use the proxy like e.g.
[noinet]$ ...
- 643
6
votes
Bash Script - Setting Local Environment Variables (Proxy)
It looks like there are several mistakes here. First, your variable assignment expressions shouldn't be inside backticks. The backticks are a (somewhat dated) syntax for command substitution. I think ...
- 10.2k
6
votes
Accepted
Proxy setting: How to keep my password more secure
Someone getting the password from your terminal is the least of your problems.
The bigger problem is that using the proxy via a non-encrypted protocol over the network, your login and password can ...
- 58k
5
votes
Accepted
Proxy settings for CentOS 8 not working
Turns out the dnf has changed the way it deals with proxies. If you’re using a basic proxy authentication then you need to specify it:
vi /etc/dnf/dnf.conf
# proxy settings
proxy=http://proxy.domain....
- 143
5
votes
netcat missing -x option
There are multiple implementations of netcat, you probably want the BSD one, because it provides the -x option. In Ubuntu it is available in the netcat-openbsd package.
- 20.5k
5
votes
Can you configure NGINX to redirect a HTTP request to SSH connection?
This is a good question. Yes you can use nginx to redirect SSH traffic. In the following example, nginx will redirect traffic, according to protocol. This means that nginx is able to identify SSH ...
- 1,655
4
votes
On-demand SSH Socks proxy through systemd user units with socket-activation doesn't restart as wished
Due to the reputation system, I'm not able to comment @ankostis solution...
I suspect that systemd has options to avoid the use of a bash sleep-loop
Yes, there is systemd-notify.
Also incorporating @...
4
votes
Accepted
iptables rules on squid proxy machine
You seem to have used sport instead of dport and vice versa in the firewall rules.
It should be:
iptables -A INPUT -p tcp -s "$my_pc_ip" --dport 3128 -m state --state NEW,ESTABLISHED -j ACCEPT
...
- 364
4
votes
How to unset the 'http_proxy' environment variable in Python
Each call to os.system() is creating a separate process. Do echo $$ inside them both to see that the PID changes with each.
So your first os.system() spawns a new process which inside of itself ...
- 1,126
4
votes
Does SSH ProxyJump require local shell access?
In my testing on OpenSSH 7.4, specifically:
$ ssh -V
OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017
I was able to set my user's shell to either /sbin/nologin or /bin/false and was able to log into ...
slm♦
- 380k
4
votes
OpenBSD relay, https proxy for multiple domains
As of OpenBSD 6.6, relayd now supports SNI. Check the man page for the "tls keypair" option.
You can specify this option multiple times to cover as many domains as you want:
http protocol "...
4
votes
How is SOCKS protocol used in SSH dynamic port forwarding?
The SSH protocol permits multiplexing multiple independent data streams through one TCP connection. Each data stream is called a channel. All data sent through the TCP connection is encrypted. The ...
- 3,587
4
votes
Accepted
Do any open source HTTP/HTTPS proxies exist that support PAC?
Yes, there are projects such as pacproxy. A widely used proxy, Shadowsocks, internally uses PAC too.
- 611
4
votes
Cannot install packages with apt-get update in debian (Proxy)
Create a /etc/apt/apt.conf.d/http-proxy.conf with the following line:
Acquire::http::Proxy "http://user:[email protected]:8080/";
Then run:
export http_proxy=http://user:[email protected]:...
- 69.9k
4
votes
Certificates on WSL
I'm not sure, which commands you tried exactly (as the case may be, my hints are less helpfull).
1. this commands works for me (without DPI-Firwall)
sudo apt-get update
sudo apt-get install wget ca-...
- 41
4
votes
Why does socat fail at proxying X11 where ssh succeeds?
One or more X extensions (I think DRI is one of them) send file descriptors over the unix domain socket and using send/recv doesn't proxy these file descriptors. Instead you have to use sendmsg/...
4
votes
Accepted
Apt-get and mirrors errors or failed to fetch
It looks like your machine is trying to resolve a host literally named proxy_server. Try ping -c 5 proxy_server to see if it has an IP listed and if you can hit it over ICMP. If you are indeed ...
- 2,404
3
votes
Get transmission web interface working with web server
There is a working sample in Linuxserver.io repository.
https://github.com/linuxserver/reverse-proxy-confs/blob/master/transmission.subfolder.conf.sample
If you are not using docker, the configuration ...
- 31
3
votes
How to use socks proxy for commands in Terminal such as youtube-dl?
Since youtube-dl version 2016.05.10, you can use --proxy to specify SOCKS proxy, e.g.
youtube-dl --proxy "socks5://127.0.0.1/" -v 9bZkp7q19f0
--proxy URL Use the specified HTTP/HTTPS/SOCKS proxy. ...
- 22.1k
3
votes
Accepted
How to enable presistent proxy_arp
You can do it two different ways.
First, you can target a specific interface (enp3so in this case):
# The next line enables proxy arp for IPv4 on the main Ethernet port only
net.ipv4.conf.enp3s0....
- 66
3
votes
Accepted
Configuring no_proxy on centOS
Solved.
I was appending asterisk(*) in the no_proxy ( *.org.in) which caused the issue. The issue is resolved after removing the *.
- 203
Only top scored, non community-wiki answers of a minimum length are eligible