A proxy is a program that acts as an intermediary in connections between a client and server. There can be proxies for any communication protocol: HTTP, SSH, …

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2answers
163 views

Serve Internet to remote machine via SSH session?

The machine via which I'm SSHing to the remote/host machine (same network/LAN) has access to the Internet but the host doesn't. Running updates and installing packages on the host gets quite ...
2
votes
1answer
325 views

Tunnel incoming rtorrent connections to rtorrent

I'm running rtorrent on a seedbox, but this seedbox has significant bandwidth restrictions. I have another server (I'll call it the proxy) with no bandwidth restrictions which I'd like to use as a ...
2
votes
1answer
959 views

stunnel - how to setup stunnel to handle ssl and attach http with it?

I am running Google App Engine which is a http web server with some redirecting and other real-time stuff. But it does not have SSL to include so its unable to make HTTPS. Therefore, i was trying ...
1
vote
1answer
240 views

Privoxy/VPN/remote proxy

On Privoxy, my current config involves this. (forwarding all requests to netshade proxy): forward / nl1.netshade.net:350 Now, I would like to use a VPN on top of this config while keeping my ...
1
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0answers
74 views

Why is Apache not respecting aliased directories?

In ssl_default.conf where Apache serves as an SSL-adding proxy for Django Gunicorn, I have: ... Alias /admin/static/ "/usr/lib/python2.7/dist-packages/django/contrib/admin/static/" ...
0
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0answers
163 views

Can proxychains proxify VirtualBox?

I have my proxychains proxiyfied VirtualBox, the guest OS connects to the internet directly that bypassing the proxy setting in /etc/proxychains .cnf. So, which is proxychains can and can't?
2
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0answers
90 views

IMAP caching proxy for sharing connections

I'm trying to find an IMAP proxy in which multiple clients will share a single connection to the same server. The reason for this is because most mail providers only allow a limited number of IMAP ...
2
votes
0answers
19 views

Route socks proxy traffic through wireless client [duplicate]

I have a router with two Internet WANs: DSL (vlan1) and wireless client (eth1). They are both in default route: vlan is the first and eth1 is the second (I am using ip route add default scope global ...
3
votes
1answer
337 views

ProxyCommand without socat, nc or Bash's TCP redirection?

ssh_config's ProxyCommand allows to establish some connection to a proxy prior to establishing the connection to the actual target machine. Simple question: how can I leverage the dynamic or SOCKS ...
1
vote
2answers
169 views

Reverse socks5 using SSH

Setup: Server is a virtual machine Server have a local ip adress Server is restricted so that it can't reach the internet (not sure how) Client machine have access to both server via SSH Client ...
2
votes
0answers
335 views

Route all HTTP traffic through polipo

I've set up polipo on my machine to listen to the default port 8123. To test it, I set the in-memory cache to a ridiculously high 2 GB and downloaded a 50 MB file using wget utilizing the proxy. ...
0
votes
1answer
119 views

SSH proxy laptop

I run a simple ssh proxy and I am always on the move with my laptop. Having to restart it every time I open the lid and connect to the internet. sshpass -p password ssh -D 9999 root@myvpsip Is it ...
1
vote
2answers
143 views

How do I unset a variable in bash

I have tried the following command to set Proxy on yaourt: export ALL_PROXY=http://proxy.example.com:8080 The question is how to unset the proxy on yaourt? In general how can I unset the value of a ...
2
votes
1answer
391 views

Run my own HTTP fast-browsing proxy a la Opera Mini?

Opera Mini is a great browser that works well on feature phones and iPhones. Unlike most browsers, it uses Opera's servers to transcode every page you browse to into a small, easy-to-render chunk ...
4
votes
1answer
893 views

What tool can I use to sniff HTTP/HTTPS traffic?

I'm looking for a command line tool that can intercept HTTP/HTTPS requests, extract information such as: (content, destination, etc.), perform various analysis tasks, and finally determine if the ...
0
votes
0answers
70 views

Network connecting trouble shooting

I am trying to connect to the network of my school. With Windows 7 + IE it is not problem at all. I connect to it, no matter what web-page I try to reach, I get forwarded to ...
0
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0answers
194 views

Squid3 failed to response when access certain website

My Host system is Ubuntu 13.10 64bit. I configured Squid3 almost with the default configuration file, except adding acl localnet... and http_access allow localnet. I did not configure cache_dir cause ...
0
votes
4answers
93 views

Unset http_proxy enviroment variable

Updated 11/03: After doing some test with your suggestions, I only can be sure about one thing: there is something related to the graphical environment, because if I login through ssh or using ...
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vote
0answers
153 views

Squid cache problem

If I put in my test_site acl (deny access policy) a site (i.e, www.aaabbbccc.com) which nobody ever accessed and do a squid -k reconfigure, Squid then appears to correctly log the site. I then ...
0
votes
1answer
147 views

Squid not forwarding my packets proxied from iptables on router

I am trying to make openwrt's iptables from my router to direct to my squid proxy on my machine (since there is no enough space in router's flash memory) but even if I have my squid config ok ( ...
1
vote
1answer
176 views

Tunnel HTTP traffic using another machine via SSH

I have this situation: server 1: public ip x.x.x.x private ip 192.168.0.1 server 2: private ip 192.168.0.10 The server 1 can reach the internet with both interfaces: ping -i x.x.x.x ...
1
vote
2answers
310 views

PXE boot via off-site TFTP server

I would like to PXE boot from a TFTP server that is not on my local network. The server is running in a cloud VM. Is it possible to specify the remote server's IP without utilizing DHCP? If not, ...
2
votes
1answer
529 views

How do I deal with a certificate based transparent proxy in Arch Linux?

I have setup an Arch Linux VM at work, and my company uses a transparent (cut-through) proxy with a self-signed certificate and requires authentication. Whenever I try to install any packages through ...
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0answers
168 views

HTTPS Authentication problem : Polipo

I use internet behind http proxy, and that requires authentication. I tried using polipo to bypass the authenticated proxy to 127.0.0.1:9134. Applying these settings to my browser, works fine for ...
4
votes
1answer
1k views

Have ssh resolve hostnames from config when using ProxyCommand and netcat mode

I'm attempting to set up some universal options for bouncing ssh connections. Here is my ~/.ssh/config file, abbreviated: Host *%via ProxyCommand ssh gateway -W $(echo %h | cut -d%% -f1) %p Host ...
1
vote
1answer
129 views

Is it possible to use a VMWare VDI as a proxy for SSH?

I'm currently working for a company with quite strict security measures. 90% of my work takes place on a Linux machine, but to access this machine I first have to connect to a VPN, access a Windows ...
1
vote
1answer
2k views

proxy settings ignored by apt-get manager in Ubuntu 13.04

I am using Ubuntu 13.04 in company network, http proxy works fine with my user account but still I cannot install or update anything with apt-get : Proxy Authentication Required ( Forefront TMG ...
4
votes
2answers
408 views

SCP file between 2 servers that go through few servers

I want to copy a file from server-a to server-d but I can access server-d only from server-b and then to server-c. server-a can only access server-b, server-b can only access server-c, server-c can ...
1
vote
3answers
2k views

How to change user agent on all http requests made from my machine with Squid intercepting proxy?

I'd like to change the user agent on all HTTP requests made from this machine. It's easy enough to change the user agent in each browser, but other apps also make http requests. In particular, there's ...
0
votes
1answer
113 views

squid 3.1.11-1 - POST issues

I have an issue with my squid on the website : http://www.draw.io I have one schema and I am not able to export it as a PNG (I got a white page on the web browser like the website didn't answer.) ...
1
vote
1answer
399 views

How to set up a “child” proxy that doesn't need a “parent” proxy

I run Linux on a laptop that is sometimes on a corporate network which uses an NTLM proxy server, and thus I have cntlmd running on the laptop as a child proxy to connect to the parent (corporate) ...
2
votes
1answer
169 views

LAMP Hardening, Transparent Proxy with iptables

I'm running a LAMP server with FTP(S) and several users. The users have only access to uploading PHP files and other web content. Some are running Drupal and Wordpress, but also a few home made stuff. ...
0
votes
2answers
148 views

Mirror localhost:3280/some/long/url to localhost:3000

I have a webservice running on localhost 3280 that exposes Elasticsearch server under /some/long/url. I would like to access Elasticsearch from localhost's port 3000. Can I do this with ...
0
votes
1answer
177 views

SSH reverse tunnel works except when I use a VirtualBox instance at one end. Why does VB break SSH?

VirtualBox seems to break my SSH ProxyCommand... here are the details: I want to open an SSH connection from my laptop to desktop over an SSH (reverse) tunnel. I want to do that in one step using ...
1
vote
3answers
3k views

CentOS use .pac file as proxy

I have to use a proxy with authentication to connect to the Internet. But I can't find any solution for this. I have modify my yum.conf, with a lot of possibilities: ...
1
vote
1answer
46 views

how to setup: proxy with confirmation of rules for browsing internet

I'm trying to achieve something like acceptance of rules before user gets connected to the internet. For example: when users enters address http://google.com (or any other) first thing he will see is ...
2
votes
1answer
244 views

What are the key differences between “SSH tunnels” and “Squid reverse IPs” in regards to web page scraping and private browsing?

What are the key differences between "SSH tunnels" and "Squid reverse IPs" in regards to web page scraping and private browsing? Interested to know if there are any differences between using "SSH ...
4
votes
1answer
906 views

Why wget does not work via ssh tunnel? What does proxy prevent ssh-client to do?

To test things I'm trying to establish a local ssh tunnel from my laptop to a site via ssh-server, and download a page of the site (or view it in a browser). The tunnel is made like this: $ ssh -L ...
4
votes
1answer
3k views

apt-get via ssh-tunnel if only port 22 is allowed

I have a server which has only access to the outer world via port 22 (for the use of ssh from the server to other computers). I want to install some packages via apt-get on this server. Can I achive ...
1
vote
1answer
772 views

Tunnel openwrt requests

I am pretty new to OpenWrt what I want to achieve is the following scenario: I have a socks5 proxy server running on a machine witch is at work. From my home I wish to configure my router who is ...
4
votes
3answers
273 views

Commandline global proxy program?

I'm living in China, and lots of web service is not available or stable here like Github/Bitbucket/Imgur, When I'm using wget, git or some other commandline tools, I need using a proxy. Is there any ...
4
votes
1answer
437 views

tproxy per user

I'm in the process of adding some parental control to my box (http filtering), but I'm something of a nOOb when it comes to network configuration :-( The box is used by the whole family (one account ...
1
vote
1answer
698 views

TP-Link TL-WR1043ND as dumb access point

I followed these instructions on how to set up my TP-Link TL-WR1043ND as a dumb AP: Flashed brand new Attitude Adjustment 12.09-rc1 Logged into LuCI, set up a password Disabled and stopped firewall ...
2
votes
1answer
206 views

Http proxy to select external interface based on host header

I have a very specific use-case at work where I have several external IP addresses (a full class C), and I need to select the outbound IP address I'm using. The requests are http, and the application ...
1
vote
1answer
162 views

privoxy unable to take any additional connections

I run a public proxy and I've got about 400 clients, but when I check the logfile: /var/etc/privoxy/logfile I get lots of: unable to take any additional connections. In /etc/privoxy/config I ...
1
vote
1answer
83 views

privoxy show client ip when sending mail

Is it possible for privoxy to show original client ip when sending mail ( example: this mail header should show the client's ip not the proxy ip: Received: from [xx.xx.xx.xx] by ...
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0answers
185 views

PGP keyserver and proxy firewall issues

I am not sure this is a Linux question directly ... I use Arch Linux which uses package signing. This requires me to download a set of pgp keys with the pacman-key program. This works off the ...
3
votes
1answer
434 views

Configure Centos 6.3 to direct all traffic through a proxy server

Is there a way to configure CentOS 6.3 to direct all internet traffic through a proxy server? Forgive me if this is a really dumb question, I know very little about how proxy servers work and how ...
2
votes
0answers
336 views

How to bind ppp0 interface (PPTP VPN) as 'external' in proxy server?

I'm trying to bind ppp0 interface (PPTP VPN) as 'external' interface in proxy server (Tinyproxy). Unfortunately it does not work. Using route add -net default gw 10.9.0.1 I can make all the traffic ...
0
votes
1answer
103 views

What do I need to setup a linux box as a proxy to access the network?

At the minute I have all my machines connect directly to my isp-supplied broadband router. I want to make sure my machines are behaving correctly so I wish to test this by sniffing the traffic of ...