Questions tagged [proxy]
Device or program that stands between two or more interconnected programs/devices
3,323
questions
152
votes
13
answers
182k
views
How to set up Nginx as a caching reverse proxy?
I heard recently that Nginx has added caching to its reverse proxy feature. I looked around but couldn't find much info about it.
I want to set up Nginx as a caching reverse proxy in front of Apache/...
- 3,110
100
votes
7
answers
107k
views
SSH from A through B to C, using private key on B [closed]
I'm looking for a simple way to SSH from my local machine, A, through a proxy, B, to a destination host, C. The private key that goes with the public key on C is on B, and I can't put that key on my ...
- 3,130
89
votes
4
answers
333k
views
Nginx Redirect via Proxy, Rewrite and Preserve URL
In Nginx we have been trying to redirect a URL as follows:
http://example.com/some/path -> http://192.168.1.24
where the user still sees the original URL in their browser. Once the user is ...
- 1,045
69
votes
2
answers
206k
views
Apache ProxyPass with SSL
I want to proxy requests from an SSL site via a non-SSL site. My Apache httpd.conf looks like this:
<VirtualHost 1.2.3.4:80>
ServerName foo.com
ProxyPass / https://bar.com/
</...
- 15.1k
67
votes
2
answers
106k
views
Nginx location regex doesn't work with proxy pass
I'm trying to get these 2 location directives working in Nginx but I'm getting some errors back when booting Nginx.
location ~ ^/smx/(test|production) {
proxy_pass http://localhost:8181/...
- 821
61
votes
4
answers
161k
views
How to use nginx to proxy to a host requiring authentication?
How can I setup an nginx proxy_pass directive that will also include HTTP Basic authentication information sent to the proxy host?
This is an example of the URL I need to proxy to:
http://username:...
- 1,295
54
votes
8
answers
121k
views
Can I create SSH to tunnel HTTP through server like it was proxy?
Say I have a server and client. I need to create connection from client to a website through server like it was proxy.
Is it possible to do this using a SSH tunel, or do I have to install some proxy ...
- 1,764
47
votes
5
answers
63k
views
Is there a cloud-based reverse proxy solution in AWS? [closed]
The system
I have an API deployed on EC2 machines on AWS. Incoming HTTPS requests are passed to an elastic load balancer. The load balancer handles the SSL, and passes the request to an Nginx server, ...
- 13.4k
45
votes
6
answers
82k
views
Configuring Apache2 to proxy WebSocket?
The WebSocket protocol is an extension of the HTTP protocol. However, the proxy module of Apache2 does not seem to know about it, and throws away crucial headers, converting the call to a standard ...
- 595
42
votes
5
answers
75k
views
windows 10 ssh proxycommand: "posix_spawn: No such file or directory"
I use Windows10 and I need to use a jumphost to get to my Linux servers. Thus I have configured my .ssh\config like so:
Host jumphost
HostName jumphost.server.local
Host server*.server.local
...
- 933
38
votes
2
answers
82k
views
Proxy Pass not working
I am attempting to get ProxyPass to work on my OpenSUSE 13.1 install.
I have tried:
a2enmod proxy
a2enmod proxy_http
a2enmod proxy_connect
systemctl restart apache2
systemctl reload apache2
(All ...
- 481
37
votes
2
answers
90k
views
How to reverse proxy to different places depending on subdomain in Nginx?
I have multiple subdomains, all pointing to one machine, and one IP address. On this machine, I want to have nginx acting as a reverse proxy, and depending on which subdomain was used to access the ...
- 489
35
votes
9
answers
46k
views
How to duplicate TCP traffic to one or multiple remote servers for benchmarking purposes?
Infrastructure: Servers in Datacenter, OS - Debian Squeeze, Webserver - Apache 2.2.16
Situation:
The live server is in use by our cusotmers every day, which makes it impossible to test adjustments ...
- 395
33
votes
7
answers
169k
views
Apache VirtualHost with mod-proxy and SSL
I am trying to set up a server with multiple web applications which will all be served through apache VirtualHost (apache running on the same server). My main constraint is that each web application ...
- 731
32
votes
2
answers
165k
views
Nginx proxy_read_timeout vs. proxy_connect_timeout
I've started using Nginx as a reverse proxy for a set of servers that provide some sort of service.
The service can be rather slow at times (its running on Java and the JVM sometimes gets stuck in "...
- 2,760
32
votes
4
answers
118k
views
How DNS lookups work when using an HTTP proxy (or not) in IE
I recently participated in a discussion regarding what happens when a client requests a page from a proxy server. I just wanted to make sure that my understanding of this sequence of events was ...
- 571
31
votes
6
answers
113k
views
Nginx proxy by Request Method
Is it possible/how can I configure an Nginx location block to proxy to different backends depending on the request method (ie. GET/POST)?
The reason is, I am currently handling the 2 methods at 2 ...
- 470
30
votes
3
answers
15k
views
What effect does https traffic have on web cache proxy servers?
I just took two university courses on computer security and internet programming. I was thinking about this the other day:
Web cache proxy servers cache popular content from servers on the web. This ...
- 403
29
votes
6
answers
264k
views
How do I configure proxy settings for LOCAL SYSTEM?
If I edit Proxy Settings through the Control Panel, the settings are stored in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable and ...\ProxyServer. These ...
- 663
29
votes
5
answers
48k
views
Why does sub_filter seem to not work when used in conjunction with proxy_pass?
Given the following configuration of nginx:
server {
listen 80;
server_name apilocal;
sub_filter "apiupstream/api" "apilocal";
sub_filter_once off;
location /people/ {
...
- 367
28
votes
3
answers
187k
views
Apache Proxy TimeOut
I am trying to understand what is happening with the following message in our Apache 2.2 error_log:
Wed May 18 21:03:29 2011] [error] [client 172.20.10.10] (70007)The timeout specified has expired: ...
- 447
28
votes
1
answer
70k
views
Why am I getting an "Invalid command 'ProxyPass'" error when I start my Apache 2.2 server?
I'm having trouble getting Proxying working in Apache 2.2
When I try to start it, I get an Invalid command 'ProxyPass' error. that would be indicative of proxy_http_module not being loaded. However ...
- 1,866
27
votes
4
answers
128k
views
Nginx proxy to back-end with SSL client certificate authentication
I have two servers, both have nginx. Server A is listening to 443 and is configured to authenticate with a Client SSL certificate.
Server B has an internal process that needs to communicate to Server ...
- 1,906
26
votes
2
answers
43k
views
Proxy exceptions when using $http_proxy env var? [closed]
In a typical browser, when we set a proxy server, we can define a list of hostnames/IP addresses that are not to use the proxy server. How do we accomplish the same thing when using $http_proxy? I ...
- 565
25
votes
8
answers
65k
views
How can I disable encryption on openssh?
I'm having performance problems using openssh (server) and putty (client) combination to use a remote webproxy. I'd like to disable encryption and test the results to see if it makes a difference. How ...
Mark
25
votes
4
answers
344
views
Can any of the popular IM networks work like this?
Joe, Jack and Jill use IM as a communication medium among themselves in Company A, where they work, and with customers and partners around the world. No goofing off here -- it's a legitimate work tool....
- 680
25
votes
1
answer
14k
views
Relationship between bastion host and jump host
What's are the differences/similarities between a "bastion host" and a "jump host"? Are they usually used interchangeably?
- 353
24
votes
10
answers
50k
views
How to inject HTML code into every delivered HTML page?
I've got an Apache web server that delivers static HTML pages. For some reason I can't change the files themselves, but I still want to inject some HTML into every page that is being served.
Is this ...
- 1,644
24
votes
6
answers
26k
views
How can I set proxy for subversion with ssh tunnel?
I want to check out/update the code via proxy since my local connection is slow. I setup ssh tunnel : ssh -D 8090 [email protected]
to forward all the packets to my localhost:8090.
How can I set up ...
okidogi
23
votes
2
answers
55k
views
using trailing slashes in nginx configuration
location /product {
proxy_pass http://10.0.0.25:8080;
}
if I use my first location description for product folder, I should use http://mysdomain.com/product/ and I can not use http://...
- 339
22
votes
3
answers
61k
views
Difference beetween DNAT and REDIRECT in IPTABLES
Okay, it may be because I am dense or maybe just not finding the right source, but I can't understand why one of these IPTABLES setups would be better than the other.
Here is my setup:
I have a box ...
- 927
22
votes
1
answer
23k
views
Redirect a subpath to a external host with Nginx
I need to create a quite simple map in Nginx redirecting a subpath to another server that is located in the same subnet.
Nginx server: 192.168.0.2
Tomcat server: 192.168.0.3:8443
I tried to put this ...
- 325
21
votes
5
answers
48k
views
Easy TCP proxy on Windows? [closed]
What I want is to configure a computer in home with Windows and use it as a TCP proxy for connect and route packets from the 80 to port 23 in another server in the Internet
- 598
20
votes
1
answer
75k
views
how to make squid work like proxy only, without caching anything [duplicate]
Possible Duplicate:
How to prevent squid from caching and just filter?
I want to make squid work purely as a proxy, so that it does not cache anything.
Is such a usage of squid possible? How do ...
- 501
20
votes
3
answers
41k
views
How to use Nginx as a HTTP/HTTPS proxy server? [closed]
Is it possible to use Nginx as a HTTP/HTTPS proxy?
- 846
20
votes
3
answers
11k
views
nginx proxy retry while backend is restarting
Nginx returns 502 while the backend is restarting. How can I make nginx proxy retry N times with M seconds delay? Is there a plugin or something else?
- 301
19
votes
7
answers
40k
views
Will a reverse proxy in front of web server improve security?
Third-party security professional is recommending we run a reverse proxy in front of the web server (all hosted in the DMZ) as a best practice security measure.
I know this is a typical recommended ...
- 311
19
votes
6
answers
31k
views
Is there any way to cache HTTPS requests in a proxy server?
We are using Squid proxy server in our environment and we want to cache HTTPS requests.
Is there any way to configure Squid or in general a proxy server to cache HTTPS requests?
- 2,164
19
votes
2
answers
51k
views
Remote Desktop over SSH SOCKS proxy to bypass firewall [closed]
I'm trying to connect to a Windows server from my Mac using RDC2.1 for Mac.
The problem is the server I need to connect to is guarded by the evil dragon - IP-based access control on a completely ...
- 465
19
votes
3
answers
28k
views
SSH over HTTPS with proxytunnel and nginx
I'm trying to setup an ssh over https connection using nginx. I haven't found any working examples, so any help would be appreciated!
~$ cat .ssh/config
Host example.net
Hostname example.net
...
- 917
18
votes
2
answers
41k
views
Nginx not caching data
I have a REST API behind an nginx proxy. Proxying works fine, however I am unable to cache any responses. Any help would be much appreciated:
Nginx config:
worker_processes 10;
error_log logs/...
- 365
18
votes
1
answer
36k
views
How to divert traffic based on hostname using HAProxy?
I've had some initial success with HAProxy setting up a bunch of app servers listening on various other ports.
I now have another webserver listening on one port, and i'd like to what changes to make ...
- 315
18
votes
4
answers
7k
views
Best practice for proxying package repositories
I have a collection of CentOS servers in my corporate network. For security reasons, most servers do not have general outbound internet access unless it is a core functional requirement for the server....
- 181
17
votes
1
answer
37k
views
How to prevent squid from caching and just filter?
I have set a proxy server on my network. I only want to filter the web traffic. So, I have Squid as a proxy and Qlproxy as the filter : http://www.quintolabs.com/qlicap_info.php
My server have only ...
- 1,715
17
votes
3
answers
27k
views
Is it possible to replace content on every page passed through a proxy similar to how mod_rewrite is used for URLs?
Is it possible to replace content on every page passed through a proxy similar to how mod_rewrite is used for URLs? The documentation on substitute is not clear.
I have some pages I am reverse ...
- 918
17
votes
5
answers
24k
views
Can I disable interactive shell access while tunneling web traffic through SSH?
I am looking into implementing SSH tunneling as a cheap VPN solution for outside users to access Intranet-only facing web applications.
I currently am using Ubuntu Server 10.04.1 64 bit with OpenSSH ...
- 751
17
votes
1
answer
28k
views
Proxy with netcat forever
I am proxying a VNC TCP server port with netcat. The proxy machine runs linux.
This is the comand I use:
mkfifo backpipe
nc -l 5902 0<backpipe | nc 10.1.1.116 5902 1>backpipe
10.1.1.116 is ...
- 473
16
votes
8
answers
17k
views
How can I download an executable file inside the company network when it's been locked down?
This might seem like a silly (or nefarious) question at first glance, but allow me to elaborate...
We have implemented all sorts of measures on the company network and proxy to prevent the download ...
- 680
16
votes
4
answers
18k
views
SSH through multiple hosts using ProxyCommand?
I have an entry in ~/.ssh/config on my computer at home that look like this:
host foo bar
ProxyCommand ssh -x -a -q gateway.example.com nc %h 22
where gateway.example.com is a server at work ...
- 261
16
votes
1
answer
12k
views
can't get mod_proxy to correctly forward encoded slash (/) characters (%2f)
I have a virtual host set up to redirect ntung-gitblit.localhost --> myserver:1279. However, it's not working with forward encoded slashes (%2f). The URL I'm trying to access is,
http://ntung-gitblit....
- 469