A reverse proxy is a type of proxy server. Unlike a traditional "forward proxy" server, a reverse proxy fetches resources from a specific defined set of servers for a client. The Apache HTTPD server's mod_proxy module is a popular example of software that can be used as a reverse proxy. A reverse ...
0
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2answers
28 views
Transparently forward SSH connections to NATed Servers
I've been trying this for a long time and I have not yet found a good solution. I have several servers behind a NAT that all run an SSH daemon. One of the machines is my main server which gets the SSH ...
0
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0answers
16 views
Getting 502 instead of 503 when all backend servers are down running HAProxy behind Apache
I'm testing running HAProxy as a dedicated load balancer behind Apache 2.2, replacing our current configuration where we use Apache's load balancer. In our current, Apache only, set-up if all the ...
0
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0answers
22 views
Nginx as non-caching reverse-proxy overwrites Cache-control
We run our web application using Nginx as load-balancer in front of Apache driven backend servers. The cache in Nginx configuration is not enabled (is this different from disabled?); relevant ...
0
votes
2answers
45 views
Nginx - when tunnel the url redirects without port number
My problem is very similar to this: nginx proxy pass redirects ignore port
I am using nginx 1.0.14.
I want to be able to ssh-tunnel into my Django website, so I can work remotely. I've tested a ...
1
vote
1answer
14 views
REST proxy for IIS
I am looking for a REST Proxy to run on IIS so that an https GET/POST/DELETE etc can be forwarded "as-is" to another REST server for fulfilment, and to return the results as-is also.
I've done a ...
0
votes
2answers
44 views
Forward Custom Header from Nginx Reverse Proxy
I have an nginx web server acting as a reverse proxy to forward requests on to Apache for additional handling (I'm begging you not to ask why). I have a request to which I'm trying to attach a custom ...
0
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0answers
25 views
Software Proxy & LB options. Must be layer 3 and redundant
Currently we have good ol' LVS running in the same subnet as our webservers. We use Piranha for automatic redundancy and take full advantage of the status check scripts to not only automatically ...
1
vote
1answer
41 views
Tomcat and nginx sizing
I manage an application that is deployed on Tomcat servers, with nginx in front, as a reverse proxy. I need some help for the sizing of thread pools / connection pools / ... I find quite a lot of ...
0
votes
0answers
14 views
frox as reverse proxy?
I have 'frox' setup as the ftp proxy on one of my servers, but I need to have all traffic to this system to be forwarded to another ftp server. I know about transparent forwarding, but I can't seem ...
1
vote
0answers
40 views
ARR Reverse Proxy and multiple sites as subdirectories with IIS 7.5
I have multiple websites (combination of ASP.NET Webforms and MVC3) that we are trying to consolidate under a single domain with each site under a directory on this main domain.
So I want to take the ...
1
vote
0answers
50 views
Amazon EC2 Elastic Load Balancing - strategy for zero downtime server restart
I have 5 web servers (Apache/mod_perl) behind Amazon EC2 Elastic Load Balancing, when I deploy codes to the web servers, I am doing this..
For each machine, shutdown the Apache
Update the code
Start ...
0
votes
1answer
30 views
nginx reverse proxy cache revalivation error
We have a C/C++ app with an embedded http server. Our http server is very native, does not support ssl or keep-alive connection. It listen on port 5555 and servers static pages. Before serving the ...
1
vote
2answers
44 views
Apache ReverseProxyPass redrects to http rather than https
I have a reverse proxy setup using apache mod_proxy:
<VirtualHost *:443>
ServerName reverse.server.com
ProxyPass / http://10.1.9.11:3000/
ProxyPassReverse / http://10.1.9.11:3000/
...
1
vote
1answer
34 views
Zimbra 7.2 reverse proxy to arbitrary internal website?
I have ZCS 7.2 opensource installed at webmail.domain.com and mailman on mailman.domain.com/mailman.
I wanted to setup a proxy so that when someone goes to webmail.domain.com/mailman, the proxy ...
2
votes
1answer
53 views
Tactic to block a UDP spoofing attack
The packets are margin of 200,000 ~ 800,000 per second and UDP spoofed(0 bytes/46bytes)
I have a linux deb 6 and windows server 2003 that is taking a hit.
Current idea:
- Setup a proxy server up ...
3
votes
2answers
54 views
Can nginx be an mail proxy for a backend server that does not accept cleartext logins?
Can Nginx be an mail proxy for a backend server that does not accept cleartext logins?
Preferably I'd like to know what directive to include so that it will invoke STARTTLS/STLS, but communication ...
0
votes
1answer
26 views
rule of thumb for estimating size of keys_zone for nginx reverse proxy
I'm using nginx as a reverse proxy, but trying to figure out how large I should set the 'keys_zone' attribute on the 'proxy_cache_path' directive. The only advice on determining that size that I have ...
0
votes
2answers
138 views
Deploying play! 2.0 application on an apache server with a reverse proxy
I'm trying to deploy my play! 2.0 application on an Ubuntu 11.10 server and I have been running into error after error and hope someone can help me here. I am try to deploy my Play! application using ...
0
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0answers
95 views
How to interpret `iptables` logs and set rules appropriately?
Initially I thought iptables was blocking all http traffic for a reverse proxy I have set up with pound. This was working prior to a system update (ClearOS 6.2.x).
Now after implementing logging for ...
2
votes
1answer
30 views
How do I avoid “already used by another worker” warning in an Apache2 reverse proxy config?
I added server matching ProxyPass and ProxyPassReverse entries, but I was getting "already used by another worker" [warn] messages upon start up.
I have proposed solution that's good enough for me, ...
0
votes
0answers
32 views
Lots of ESTABLISHED UNREPLIED connections in conntrack
I suddenly see a lot of entries looking like this:
tcp 6 87733 ESTABLISHED src=0.0.0.0 dst=0.0.0.0 sport=80 dport=51482 [UNREPLIED] src=0.0.0.0 dst=0.0.0.0 sport=51482 dport=80 mark=0 use=1
...
2
votes
0answers
48 views
Log response body in nginx
How do you log the response body (not request body) in nginx? I could not find such a variable in any of the modules (only the request body).
We are using nginx as a reverse proxy/loadbalancer and ...
0
votes
1answer
37 views
Nginx proxy forward and preserve original links?
Here is my current config:
server {
location ~ ^/bugsbunny/?(.*)$ {
proxy_set_header Host $host;
proxy_pass http://127.0.0.2:8080/cartoon/network/$1;
}
}
I've been ...
0
votes
2answers
90 views
Reverse Proxy - should it be a different technology stack?
Got a skeptical question about a reverse proxy setup I'm considering.
I've currently got a pair of load balanced application servers in the DMZ (S1,S2 in figure below). These accept inbound requests ...
-1
votes
0answers
23 views
is possible put proxy accelerator for external site?
I would like to speed up the pages on external sites, for example, display the page at the site www.sitea.com from www.siteb.com.
I tried it with varnish and nginx but I'm not an expert and a few ...
1
vote
1answer
42 views
nginx is not compressing response by default when acting as a reverse proxy
I have nginx sitting on port 80, redirecting requests to a play framework server as described by deployment docs.
I have verified that the server by default does not compress by doing the steps ...
0
votes
1answer
87 views
nginx proxy_cache: limit parallel requests to a backend
I am using nginx as a reverse proxy to my backend(s). Configuration is pretty basic, e.g. the core is just:
upstream myservice {
server 127.0.0.1:80;
server 123.123.123.123:80;
}
location / ...
0
votes
1answer
54 views
Can I force apache's mod_proxy to connect to the remote server by hostname, rather than IP?
I'm setting up Apache2 as a reverse proxy for a remote site. Let's assume the remote site is http://app.remotesite.com. Here is a snippet from my virtual host config:
ProxyPass /pxy/ ...
2
votes
1answer
50 views
Apache with nginx front-end takes gets pegged 100% CPU with Django app
I recently launched a web app that gets constantly pegged at 100% CPU. My server is a 512 MB Linode with nginx sitting in front of Apache (MPM Worker) serving a Django app. This app is unusual in that ...
2
votes
0answers
40 views
IIS Reverse Proxy Rewrite Rule usage monitoring
How can I display stats for each Rewrite rule in IIS when using it as a reverse proxy with ARR?
We use 'Orenosp' Secure reverse proxy for some of our networks but use IIS + ARR for others and one of ...
0
votes
0answers
18 views
File-based reverse proxy cache with lru gc?
For a project I'm working on I need a file-based reverse proxy cache where I limit the size of the cache to some setting and have the ability to "gc" the cache based most likely on a lru algorithm.
...
0
votes
1answer
47 views
Running NginX (with Apache) and cPanel/WHM
I was wondering if its a good idea to be running NginX as the webserver (on port 80) and Apache as the reverse proxy (on port 8080) with cPanel/WHM being used as a control panel? I also installed ...
1
vote
2answers
47 views
Can nginx start apache on demand?
I have an "archive" server for old sites that no longer are being used, but I want to keep them online as part of my CV/Portfolio.
They require different apache and php versions and setups, so I am ...
1
vote
2answers
62 views
nginx load balancing issue with 301 from backend
I am running into an odd problem for which I am not sure if it is a configuration issue or a bug in nginx. My setup is a nginx reverse proxy which has Apache2 backend servers. The load balancer is ...
-1
votes
1answer
71 views
Error message when trying to start varnish on centos 5.5
I just installed and configured Varnish to work on port 80, and Apache to work on port 8080.
I am trying to start Varnish with the command service varnish start, but it gave me this error:
...
1
vote
1answer
35 views
Error message when trying to install varnish on centos 5.5
I am trying to install Varnish on CentOS 5.5 using command yum install varnish, but the installation procedure can't be completed because of this warning message:
warning: rpmts_HdrFromFdno: ...
0
votes
3answers
83 views
SSL reverse proxy and security (eavesdropping)
I am new to the hosting in datacenter.
I would host my app in a datacenter (colocation). I can sell me only the bay I need.
I would like to use a SSL reverse proxy :
SSL Reverse proxy + LoadBalancer ...
1
vote
1answer
164 views
Nginx reverse proxy + URL rewrite
Nginx is running on port 80, and I'm using it to reverse proxy URLs with path /foo to port 3200 this way:
location /foo {
proxy_pass http://localhost:3200;
...
2
votes
1answer
43 views
Good way to reverse proxy through a forward proxy
I have an app that uses HTTP to connect to a server but does not support using an HTTP proxy and I must use an HTTP proxy to get to the server.
I would like to set up a reverse proxy service (it's on ...
0
votes
1answer
120 views
IIS 7 ARR Reverse Proxy Over https
I have a very simple reverse proxy setup in IIS7 using ARR and rewrite module that takes all traffic on an IP and routes it to a different IP running on a different server.
<rule ...
0
votes
1answer
73 views
mod_proxy: pass path from original request to proxied app
I'm struggling with reverse proxying an app running in a Tomcat server on a closed port behind Apache. For convenience, say that I want to reverse proxy requests for 'http://mydomain/apps/my_app/' to ...
1
vote
0answers
30 views
Rewrite cookies for ISA: add Secure
We've developed a web application. One of our customers decided to run it over HTTP internally and use an ISA server to function as a reverse proxy. The access to the ISA server from the outside world ...
0
votes
2answers
99 views
Apache + Tomcat: Which one should handle SSL? IP-based proxy forwarding?
We currently have a Tomcat application running with SSL on port 443. Right now we have an apache server that accepts http requests on port 80 and redirects to the Tomcat instance:
<VirtualHost ...
0
votes
1answer
43 views
eXist-db: can't start webstart client on a closed port, reverse proxied via apache
I am configuring an Apache HTTP server so it reverse proxies requests starting with /app/ to an eXist-db instance running in a Tomcat server, on port 8082. This port has been closed in the firewall ...
1
vote
1answer
89 views
Route multiple subdomains on one external ip to multiple internal ips
i have several subdomains(git.example.org, build.example.org, etc.), i have a router with an external ip and i have several virtual machines on a host computer with internal ips.
Now i want to route ...
0
votes
1answer
199 views
plesk: how to configure reverse proxy rules properly?
[edit]: FWI, thanks to Vadym's comment below, I discovered that I had overlooked to enable mod_proxy_http on my Plesk server. Loading this module (alongside mod_proxy) fixed the original error.
I'm ...
2
votes
2answers
127 views
How to make permanent changes to iptables of CentOS 5.5
I want to make an iptable rule permanent so if the server is rebooted I won't have to add the rule again.
Specifically a rule I have related to nginx being reverse proxy of apache.
iptables -t nat ...
2
votes
1answer
105 views
Can I configure IIS 7+ to do a dynamic reverse proxy based on the incoming hostname?
I am trying to configure IIS to proxy requests based on the incoming hostname. For example, if my proxy server is an IIS server located at www.proxy.com, a request to www.google.com.www.proxy.com ...
1
vote
1answer
88 views
Apache: redirect specific URL to a local server on different port
This seems straightforward, but I can't make it work.
I have a pretty trivial webserver that only needs to do two things:
example.com/status.html returns a local file (this works)
example.com/atom ...
0
votes
1answer
33 views
What does “acl cdn_name hdr_beg(host) -i foor.bar.com” mean in HAProxy's configuration?
I've recently taken over an environment using HAProxy, and I'm attempting to learn the config and what it all means, but I'm finding some aspects of it are not clear.
I think the above means that if ...
