-3
votes
0answers
25 views

Is it possible to redirect all port 53 traffic? [on hold]

We want to redirect all port 53 traffic to our DNS server using a "Raspberry Pi" acting as a switch. Is this something that is possible/realistic? (All DNS traffic, including applications that try to ...
0
votes
1answer
28 views

How to proxy traffic by IP using server names/aliases?

We have 5 different server locations each containing around 30 servers each, each server represents a URL and serves both HTTP and HTTPS. They're all identical however provide different content based ...
0
votes
1answer
185 views

Setting up DNS on reverse proxy

I have a backend that used to be my front end. Now my front end is an nginx proxy server. It just serves as an http and an IMAP/SMTP proxy. The backend services apache,mysql,dovecot/postfix. Since I ...
-2
votes
1answer
57 views

Should i use DNS or Proxy for server resolution? [duplicate]

We have a custom java web app. We are setting it up in instances in different vps (different providers, different locations).Each instance is independent and self contained. We have several docens of ...
0
votes
2answers
39 views

Setting up different application instances under one DNS

We have a custom java web app. We are setting it up in instances in different vps (different providers, different locations). We have for example: Instance 1: http://server1/app1 Instance 2: ...
2
votes
3answers
186 views

Multiple DNS with multiple WAN

I'm having a Linux gateway with two WANs each one is connected to different provider, each provider has his own DNS server, And local users are connected to the internet via this server [it's also ...
0
votes
1answer
105 views

DNS proxy setup - how to “redirect” queries?

I was wondering if there's any method to configure BIND server to answer queries based on the record's local value and if it's not there, forward the request to the configured recursive server. ...
-5
votes
2answers
310 views

looking for transparent DNS proxy [closed]

ISP are said to use transparent DNS proxy, to hijack DNS to serve data faster. Does anyone know ip and port of one of those reliable proxies? EDIT: As most of you didn't understand what this mean, ...
0
votes
3answers
71 views

Aggregating group of DNS servers

I have a network configuration like the one pictured here: There is one machine facing the Internet, with a static IP assigned, and a group of machines having only local addresses. Each "private" ...
0
votes
1answer
843 views

Redirect all DNS queries to IP

I have a server with Ubuntu 12.04 Operating System on it.I want to make a DNS Server that accept all request including IPs,and redirect them to an specified IP......there users can login and after ...
0
votes
0answers
48 views

Proxy for accessing multiple domains on the same IP

I would like to host multiple websites inside my server, and have access using subdomains. For example wiki.host.com points to one site, www.host.com to another etc. It works well locally, because I ...
0
votes
1answer
270 views

Transparent Proxy or VPN that listens on all ports

I'd like traffic to be routed via a proxy or VPN based on a the client's hosts file (or DNS that is given to the client). This doesn't seem like a problem for http traffic on port 80 as a simple ...
2
votes
2answers
485 views

Cannot Access Virtual Host Via Apache On Localhost

I'm beginning to pull out my hair. Using Redhat/Apache we've three virtual hosts set up to serve three Drupal based domains and a fourth virtual host set up to serve Redmine via passenger all from ...
3
votes
1answer
213 views

Force users to go through a proxy server?

I need to force my users on my network to use a transparent proxy server outside my network to access websites. I'm not sure if I can do this with DNS, by setting up my own DNS which redirects them to ...
1
vote
1answer
314 views

How can I configure BIND that it FORWARDS lookups to an internet dns

I would like to configure BIND that I have a few "local" zones with manual entries and all other lookups should be forwarded to an external internet dns. How can I do that? Maybe I'm absolutely ...
1
vote
2answers
131 views

DNS forward site to different server during maintenance

Is there a way to have a dns backup records? I know with MX records you can put in backup mail servers. What my goal is that when my Windows Server is shut down, that the requests are then forwarded ...
-4
votes
2answers
3k views

What is my ip address and port number that is visible to the internet? [closed]

I went to the site http://www.whatismyip.com . It showed a ip that is not my system's ip and it also showed the proxy server's ip address. So I assumed that the nat router is providing a public ip for ...
-2
votes
1answer
201 views

How does a proxy server forward reply to the client?

A proxy maintains anonymity, i.e. the server replies to the proxy thinking that it is the client. now after receiving the reply fro the server, how does the proxy server forward the reply to the ...
2
votes
1answer
231 views

detecting an ip behind proxy

For testing purposes, I am using my machines ip provided by the isp as the address to connect to the server from my phone(my machine/pc is the server). Since ipaddresses are unique in the internet, I ...
1
vote
1answer
602 views

Vyatta Proxy Setup

So I am currently migrating our office away from the current proxy (Squid running in Windows on our Mail server...I did not set it up...) to a new one, Squid running on Vyatta. So far I have ...
2
votes
0answers
386 views

Ubuntu SOCKS proxy setup with two interfaces - how to pass DNS

I setup a SOCKSv5 server (Dante) on Ubuntu with two ethernet interfaces: eth0 is connected to my WAN with a static routable IP eth1 is connected to my LAN with a private IP I have a client ...
0
votes
2answers
858 views

Proxy Settings per Machine not working on windows server 2008 R2 SP1

i have a very interesting problem and would appreciate any help for it. In my scenario i have scripts which bring up a VM inside a domain. Now i want to enable internet access for all the VM's and ...
0
votes
1answer
136 views

Dynamically routing web traffic using DNS & Proxys

We have a big pool of web servers for a particular web application we develop on. Our clients currently point there domain or a subdomain using a A record to one of our servers. As we are growing we ...
2
votes
3answers
458 views

Suggestions for Method of access restriction in organization

I want to stop employes of using social media and other sites i might think i dont want them to visit, yet there are some times we need to use it so i need some flexible customizable solution. I ...
0
votes
3answers
917 views

Mapping a private server (running in 3G mobile network) to a public subdomain

Networking newbie question: I am trying to understand what would be the best way to expose several mobile web servers, all of them are behind a router which is a typical 3G network configuration, ...
0
votes
2answers
184 views

How does browser resolve websites in my company network..? [closed]

I am using Mac/Firefox. Use System Proxy Settings. My question is how does my off-the-shelf installed Firefox resolve local websites names, when apparently, I am not using any proxy. I just use ...
0
votes
1answer
268 views

Browsing by DNS name not working, everything else is [closed]

Running on a Snow Leopard MacBook air, can't browse the web (in any browser, tried FF,Chrome,Safari) using DNS names that are either already cached in DNS or not. Browsing to google.com or ...
-2
votes
2answers
658 views

DDoS Mitigation with round robin DNS? [duplicate]

Alright, so my friend and I are setting up a new website. We expect heavy DDoS attacks, so our plan is to use nginx to proxy from various cloud servers so that people can't find our actual server's ...
0
votes
1answer
342 views

how to force a machine to go through proxy when it as an exception not to go

I'm in a private domain where the client machines need a proxy server to access the internet. All the machines have an exception where every request to servers in my domain don't need to go through ...
0
votes
0answers
224 views

[Strange]Mac OS X unable to use Proxy and Custom DNS setting

I run a proxy DNS & proxy service but today I encountered a very strange problem which I couldn't solve. One of my clients recently moved to a new location which has a different router setting. ...
3
votes
2answers
3k views

dnsResolve and isInNet functions Problem

We have a Proxy.pac file: function FindProxyForURL(url, host) { if (dnsResolve("ProxyServer") == "10.1.1.116") if (dnsDomainLevels(host) == 0 || isInNet(host, "10.0.0.0","255.0.0.0") || ...
0
votes
1answer
244 views

problem in installing dnsproxy on Lucid

I am trying to install dnsproxy on a Ubuntu 10.04 64 bit server but this is failing. root@some:/etc/apache2/mods-enabled# aptitude install dnsproxy Reading package lists... Done Building dependency ...
3
votes
7answers
10k views

How to setup equivalent USVIDEO.ORG DNS-Proxy on Linux

I have a VPS in the USA running Ubuntu. I want to setup something similar to http://www.usvideo.org Basically, USVIDEO is a DNS service that allows Canadians to access American content like Hulu, ...
0
votes
2answers
86 views

is there a local DNS Software which uses external DNS for actual resolution?

I have a LAN with few PCs on it. I want to have them to use a local server for DNS look up, and let the local server do look up with external (actual) DNS. So, which proxy-DNS server do you suggest ...
0
votes
2answers
85 views

verifying whether IP address is associated with an overall DNS name (which has multiple IP's listed)

How can I verify, when I parse a packet, whether the IP address for the packet is one from a specific DNS name that for has many IP's listed (i.e. this DNS name does a round robin type approach & ...
0
votes
2answers
537 views

How to implement OpenDNS style proxying of web traffic

I have a requirement that I believe may be impossible and wanted to confirm this with experts in this community. A client wants us to configure a DNS server to resolve certain domains to an IP ...
5
votes
4answers
8k views

How DNS lookups work when using an HTTP proxy 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 ...
0
votes
3answers
55 views

Web-server after another computer

I have main computer with 2 network cards: one from internet, another -> to next computer with web server. DNS points several domains to my static IP, I want to serve them by second computer. How to ...
1
vote
2answers
1k views

DNS (bind) : How do I redirect an http request to a different domain, based on the requested domain

I host my own DNS server and would like to be able to redirect links from within the DNS server so that redirection is seamless. Example: redirect all requests for www.yahoo.com to www.google.com. ...
1
vote
2answers
966 views

FTP Load Balancer

I need an EC2 instance to balance all incoming FTP connections to a list of FTP servers (EC2 instances too). This list will be changed dynamically due to the load of the FTP servers (launch a new FTP ...
0
votes
2answers
1k views

Web filtering (Proxy or DNS) with option for users to ignore the block

We are struggling with our users visiting infected or "attack" sites and Phising in general. Most of our machines are protected by an Enterprise anti virus and monitoring solution (McAffe ePO) and we ...
1
vote
5answers
2k views

Best all in one linux based proxy,firewall, dhcp and wins server

I help to run a lan in Sydney. We have a need for a proxy/gateway solution to allow those pesky games that require internet to work. I have been doing this with an ISA server and it has worked quite ...
0
votes
1answer
572 views

DNS Server and Private HTTP / SOCKS Proxy

this is just a small hacking attemp to our router. I'm trying to setup a small DNS and forward webpages through proxy behind the scene. I've successfully implement the DNS server that will do the ...
-1
votes
4answers
1k views

Can we use public DNS servers in LAN? [closed]

I am in a hostel using a LAN connection and the authorities have blocked all sorts of websites. Even basic ones we are not able to use so I was looking for solutions. The blocking is done by openDNS ...
6
votes
10answers
37k views

Internet Explorer isn't auto-discovering http://wpad/wpad.dat auto-config

I am being driven to frustration by this problem. I have set up a file called wpad.dat (essentially, a proxy.pac file renamed) and put it on an internal web site. I've set up DNS entries so host name ...
0
votes
4answers
845 views

Previewing site during DNS propagation

What methods do people use for viewing sites during periods of DNS propagation? We use WHM/cPanel for all sites so the sites on those servers can be accessed by http://IP.ADDRESS/~username/ but this ...