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, …

learn more… | top users | synonyms

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
129 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
503 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
190 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
165 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
238 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 ...
2
votes
3answers
4k 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
47 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
267 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
1k 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
996 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 which is at work. From my home I wish to configure my router which is ...
4
votes
3answers
298 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
517 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
904 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
239 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
204 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
95 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 ...
1
vote
1answer
259 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
485 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
347 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
108 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 ...
0
votes
2answers
488 views

How to make my debian to work as http/html proxy?

I use debian on faculty server via putty having its public Ip adress. I have sudo. I wonder how to make it work as Http/html proxy for access to "web of science" from my home windows browser. I wonder ...
1
vote
1answer
274 views

How can I configure dnsmasq to resolve based on the source of the request?

I'm trying to get SiriProxy to work whenever I'm connected to my home network by setting up dnsmasq on my router running the Tomato firmware to send all requests to the Apple Siri server to my local ...
3
votes
3answers
6k views

Use socks proxy for commands in terminal

I connect to a remote ssh server by running this command: ssh -D 12345 bob@myserver.com This creates a socks proxy that I can use with Firefox to bypass censorship in my country. However, I can't ...
1
vote
0answers
306 views

Redirect all non-local traffic to a socks proxy

Is it possible to redirect all non-local traffic to a socks proxy? so, for example i have: 4 computers (clients A-D: 10.0.0.1-3 or dhcp) 1 computer with 2 network cards (gateway-server, eth0: ...
4
votes
2answers
10k views

How to configure for an Authenticating Proxy Server

My work proxy server requires authentication with the Microsoft AD domain user credentials. Everybody knows how it works: If you log in on a Windows workstation, your "Internet Explorer" browser based ...
3
votes
3answers
634 views

Linux stack for a home network firewall/proxy?

I've got a generic home 'network' where my ISP supplied modem acts as router with a software firewall built-in. My PCs connect directly to this router to access the Internet. I want to place a box in ...
1
vote
2answers
1k views

Connecting to host by SSH client in Linux by proxy

I am really struggling with this. My host (A) is behind a proxy/firewall (PF) and needs to connect to host H. The proxy has HTTP/FTP/SOCK proxy configured and I have no issue to configure in ...
1
vote
1answer
115 views

Self cache-proxying all outcoming http/https request

Is there a way to setup squid (or another caching proxies) to cache any http/https request from my own computer? i will use it to record all request and get the downloaded files from software that ...
4
votes
3answers
46k views

How to flush local DNS cache in CentOS

(I am aware that googling this question gives me tons of stuff, but literally none worked) I'm looking for a way to flush the local DNS cache on a Centos 6 system, it is not running any DNS server or ...
1
vote
0answers
326 views

problem with socks in proxychains

I'm trying to connect to a socks server using proxychains. My ProxyList part of proxychains.conf is: socks5 ip1.sockssrv.org 1080 MYUSER MYPASS When I try to use it; for example using ...
0
votes
2answers
76 views

How to resolve issue of system proxy?

I live in an institute where two proxies work. Lets say they are proxy A and proxy B. A works well for almost all websites, however my institution has blocked many of the essential sites in B using a ...
1
vote
1answer
246 views

How to allow access to web only through proxy?

I have a machine with Linux Slackware 13.37. Is it possible to configure iptables, so the users will be able to access web only through squid? The direct access through the browser will be blocked. ...
0
votes
1answer
1k views

Get transmission web interface working with web server

I have my working on default port and I want to be able to use the web interface with an URL like http://my.domain/torrents. I tried adding a location and a proxy conf to Nginx but it fail to work ...
3
votes
0answers
2k views

The right way for dynamic ssh port-forwarding

Want my Firefox could use localhost:9099 proxy forwarded from vps server, why it doesn't it work this way? I always get bind: Address already in use $ ssh -vfND 127.0.0.2:9099 vpn OpenSSH_5.9p1, ...
3
votes
2answers
590 views

iptables routing marked packets from router to PC and routing them back to router

I'm trying to do deep packet inspection on HTTP packets. The purpose of this is to collect HTTP payload data and then create some proxy/cache-independent reports. Following this, the idea is to ...
1
vote
2answers
662 views

Bypass sshd AllowTCPFowarding=no by installing own forwarder?

In the man pages for sshd_config, for the AllowTCPForwarding option, it states: AllowTcpForwarding Specifies whether TCP forwarding is permitted. The default is “yes”. Note that disabling ...
4
votes
1answer
6k views

how do I use rtorrent with a socks5 proxy?

How do I get rtorrent to use a socks5 proxy? I've tried to get socks5 to work with rtorrent, but it doesn't seem to have any impact. Setup the socks5 proxy on port 9800: ssh -ND 9800 user@otherhost ...
2
votes
2answers
1k views

Setup ssh tunnelling to browse using the IP of a computer inside a private network

I think my question is much easier to understand looking at the draw below. The idea is that for some reasons (such like accessing the intranet of my company, or getting access to some web pages that ...
1
vote
0answers
348 views

Running fetchmail with Socks proxy

I checked the manual of fetchmail, all it mentioned was SOCKS_CONF, but what is the format of that config file? And how do I know if my fetchmail is configured with --with-socks, fetchmail -V doesn't ...
1
vote
1answer
336 views

Gnome 3 on OpenSUSE 12.2 Proxy Porblem

Recently I've switched from Fedora 17 to OpenSUSE 12.2. I used to add my proxy from Network Settings>Network Proxy>Manual Method>Socks Hosts. But it doesn't work on openSUSE. I get the following ...
2
votes
1answer
703 views

How to check if apt proxy configuration is correct?

I have to use a proxy server which requires authentication. So, I need to update the apt.conf file to include my proxy settings. All fine. What I need is to check that the configuration is correct so ...
6
votes
1answer
3k views

SSH over Socks proxy without username or password

I have a list of SOCKS proxy servers from this site. I've read about creating a dynamic tunnels with ssh -D and to be honest i've tried that already. Unfortunately for some reason I cannot connect to ...
1
vote
1answer
2k views

cURL socks5 proxy: “Empty reply from server”

I'm accessing an http resource using Chrome, FoxyProxy without any problems. The proxy is defined as socks5 in the standard port 1080. I've tried accessing the same resource using cURL (actual URLs ...
4
votes
2answers
5k views

Yast is unable to access software repositories even though URLs are accessible in browser and system date is correct

I am using Yast on OpenSuse 12.1. When trying to install packages from the software repositories, I get an error that the repo cannot be accessed because the network is unreachable: Download ...
3
votes
1answer
1k views

Route VPN Through Proxy

I'm on a network which requires out-going traffic to pass through an http proxy. I would like to connect to my remote VPN through the proxy, but am not sure how to do this. Any thoughts? I am ...
1
vote
0answers
73 views

Proxy software that will decide where to send requests for linux

Does anyone know of some proxy software that is easy to configure thus.... User makes a request Request is sent to clear internet. If website can not be found. i.e. is Blocked by ISP (China) then ...
1
vote
1answer
202 views

Accessing ssh proxy from another host

I'm used to setup a ssh proxy in the localhost like this: ssh -fND 9999 server I have been using it for years for daily browsing. Now I want to use the same proxy in a Windows guest in the same ...
4
votes
1answer
3k views

How can I setup a SOCKS4 or 5 proxy on CentOS 5.8?

I live in Iran and due to its restrict censorship, We all have extreme difficulties accessing normal sites and services. So I thought this would be a great idea to setup a proxy server on my VPS, so ...