The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (often called TCP/IP, although not all protocols use TCP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, ...

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1answer
147 views

Bridging DSL wifi router to a PacketCable modem [closed]

I used to use a DSL based Internet connection (an AirLive WT-2000ARM). Recently I changed my Internet connection and it is now provided through PacketCable. The provider gave a modem for it (Thomson ...
4
votes
2answers
490 views

How to find the lowest latency midpoint between two geographic locations?

I'm looking for a geographic location (not service) to host internet services that will give me the lowest latency on connections from two other locations. How would I best determine the most ideal ...
-1
votes
1answer
187 views

not reachable from within my own network through outside facing interface

Is there any quick answer that lapses me by to this situation - my server is accssible at 192.168.2.200:5222 without a problem (from within the local network of course) but if I try to reach it ...
0
votes
2answers
1k views

Computer running Win7 won't access websites but can ping them

First off, pardon me if this is not where I should ask IT questions. If there is another StackExchange site (or site in general) that I should go to by all means let me know. The Problem: One of our ...
0
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1answer
696 views

Iptables Webserver Connection Timeout

After setting up iptables. My webserver has "connection timed out". I'm trying to setup my iptables based on what I have read is a pretty good starting point for a web server from another ...
0
votes
1answer
660 views

Is it possible to access Alfresco CIFS through Internet?

I know it's a security issue, but just by curiosity (I can't find a proper answer to that!), is it possible? I defined cifs.broadcast=255.255.255.255 in the Alfresco configuration, but whatever I ...
0
votes
1answer
715 views

How to connect to hyperv guest machine by rdp through internet?

I installed hyperv and some client machines. Now i need to connect to any of client machine and host by using rdp through internet. This instruction tell me what i need to configure port forwarding on ...
2
votes
5answers
3k views

Downloads pause and time out frequently

I'm a new systems and network admin. My experience has been in the hardware and software of systems and servers, the network part is pretty new to me. I'm familiar with plugging numbers into network ...
0
votes
1answer
168 views

Ubuntu - New Ubuntu server won't accept new public IP

I'm currently setting up the servers and since I gave server HachiSoftware02 it's public IP it won't let me connect to it via SSH. When it had a local IP it worked fine and I need the server for ...
2
votes
3answers
609 views

On CentOS 4.5, How to Masquerade a connection using MAC address?

Currently we give Internet access using ip address in our firewall script as follows iptables -t nat -A POSTROUNTING -s 192.168.1.40 -j MASQUERADE But we have noticed that some guys steal these ...
1
vote
1answer
632 views

netstat -e: high discards and errors

I think my network is congested because of the relatively large discards and errors data. They should be zero or at least close to that. Here is the output of netstat -e on my computer: Interface ...
0
votes
1answer
281 views

What is the difference between a leased line and EFM?

I am ordering a new internet connection in the United Kingdom and wondered what's the difference between: 10mb leased line 10mb EFM (Ethernet First Mile) line They both seem to offer equal ...
3
votes
3answers
5k views

How to configure bind9 to be a local DNS only with no internet access?

I want to configure bind9 to be a local DNS only with no internet access at all. So I have 5 PCs in my virtual domain xy.com. Within this domain there is no access to the internet. The DNS server ...
0
votes
1answer
402 views

How do I get VirtualBox to use my Windows 7 host machine as a gateway? [closed]

I can't seem to find the answer to this. I have a Windows 7 (64bit) machine that is a company laptop. Company policy is very strict about adding machines to the network. I need to run a Linux ...
0
votes
1answer
166 views

If linux server is connected to router, internet connection for the whole network will not work

I have a machine (Fedora) which is using iptables (acting as firewall). The system worked a long time, but now there is a problem. The internet connection was failing. I looked through and found out ...
0
votes
1answer
776 views

How do I access a web server on a VirtualBox from the internet? [closed]

Scheme: Direct Internet connection with static IP (upd: connected directly to the ISP without any routers). Win Web Server (Win 2008 R2). VirtualBox with guest OS Linux Debian. Web-server on Debian. ...
0
votes
1answer
151 views

Determining Internet Backbones from ASN

I am new to this layer of networking so I apologize if this question is a bit strange. When running a traceroute, I get the up addresses of the route it takes. Now, I take these addresses and map ...
-3
votes
1answer
2k views

How to get Comcast to stop blocking me? [closed]

I am a web developer running a demo server at home. My site is accessible from Atlanta as well as via my local cellular network. However, both a webserver I have in Utah and a webserver of a service ...
4
votes
1answer
8k views

Who (What?!) is “http://1.1.1.1/bmi”? [closed]

I'm not sure if this is the place to ask but I found some pages who contain links in them that start with "http://1.1.1.1/bmi". Who or what is 1.1.1.1? or maybe http://1.1.1.1/bmi has a meaning more ...
0
votes
2answers
686 views

Trying to host my own domain, using BIND and CentOS 6. Please check my named.conf and zone for errors

delegated the namesever/ip records around 24 hours on the registars website but things aren't working. NAT: forwarding all UDP/TCP requests to internal server IP on port 53 (ISP not blocking) and ...
1
vote
2answers
66 views

Trying to grasp the logic behind a complete DNS resolution and respective sequence of actions

Say we have a domain "example.org" and it has an authoritative name server with name "ns1.example.org" with a glued IP as delegated by domain registrars (delegative?) name servers. Someone types ...
0
votes
1answer
87 views

Can someone explain to me exactly why it's bad to use NS name that is a subdomain for the domain that NS is for

Reading a book and it states that you should not register nameserver names such as ns1.example.com for the domain example.com as you'll create a catch-22 situation when looking up ns1.example.com etc. ...
2
votes
1answer
126 views

Load balancing multiple internet connections

I've got the following scenario: - one low speed and low latency DSL connection (cable) (250kb/s 25ms) - one high speed and high latency DSl connection (satellite) (1250kb/s ~1500ms) Is there a ...
7
votes
5answers
985 views

Software to diagnose (ping) a network over 24h?

We've been experiencing a lot of problems with our current office's internet connection lately: slowdowns, packet losses, huge ping times, etc. (Un)fortunately, this is not happening all the day, ...
-6
votes
1answer
206 views

Server is not reachable because it was setup as Static IP. Must requires DHCP mode [closed]

ISP provides Static IP. Based on MAC address, so that forever the end user have Static IP (to do mail/www servers) Step 1: So as a user we purchased this module called Static IP using MAC address ...
1
vote
1answer
55 views

What is typically involved on the ISP's behalf when you increase bandwidth on a leased line

We have a leased line with Virgin Media. It's a 100Mbit/s circuit but we're only currently paying/using for 10Mbit/s. We want to increase the speed and have been quoted a 10 working day turnaround ...
2
votes
2answers
87 views

Logging per-user Internet access

Let me preface this by saying that I have a bit of a strange network. LAN 1 router: 10.0.0.254/24, Internet via DSL on 10.0.0.254. LAN 2 router: 172.16.2.254/24, default gateway: 10.0.0.254 (LAN 2 is ...
0
votes
1answer
92 views

Internet Backup if DSL & Cable Fail [closed]

We have a T1, a DSL Line and a cable modem in each building to assure that we can connect to the internet in case one fails. However during the latest power outage we also lost all of them and were ...
1
vote
1answer
86 views

When to expand a web server's unshared connection?

We have a 3 mbps by 3 mbps dedicated, unshared pipe that hosts a web server, mail server, and VoIP/web browsing traffic for 8 employees. The web server hosts a few different sites that average about ...
1
vote
2answers
315 views

Two network adapters with the same ip

I have two network adapters that use the same ip range, but are different networks. I tried this but it didn't work: iptables -t nat -A OUTPUT -p all -d 1.2.3.0/8 -j DNAT --to-destination ...
0
votes
1answer
1k views

Linux-Based, Open-Source, Speed-Test Module

I am setting up diagnostic servers on local networks (Redhat 5.5). One requirement is a speed test where users in the network can test the speed of their internet connection (e.g., ...
1
vote
1answer
470 views

VLAN connectivity issue and Tagging

I'm playing around with splitting up my existing flat LAN into a couple of separate VLANs. I seem to have everything working and routing as I want but I am having issues with internet connectivity. ...
1
vote
1answer
173 views

Setting up VPN on win2k3

Recently moved local server to a datacenter. It is used for small file storage, database and thats about it. I am trying to setup VPN there, which I have never done. I tried setting it up while ...
1
vote
3answers
356 views

Accessing Internet from the DMZ

I am trying to configure a DMZ using IPCop but it looks like the default configuration for a DMZ in IPCop is no DHCP and no access to Internet. Even when I manually configure IPCop as my default ...
4
votes
7answers
704 views

multiple internet connection at office

We have been using two separate Internet connections in our office. People will share internet connection by setting their gateways to either of these. Gateway is one of our local server through ...
1
vote
2answers
225 views

Intel Server Board: Ethernet MT connection vs PM connection

What's the difference between an MT ethernet connection and a PM ethernet connection? Intel server board has two ethernet ports that are named in that manner.
2
votes
2answers
165 views

Windows Server 2008 DNS Issues with Internet Sites

We are having trouble with DNS. I recently switched internet providers and the problem followed us, at which point I realized our 2008 R2 Domain Controller's DDNS must be the problem. I switch to ...
0
votes
2answers
428 views

Carrier ethernet vs Metro ethernet or any other alternative?

We have three remote offices (office A, B, and C), two (Office B and C) of them need to access the Linux file server and web application server in Office C. We also need to administer the network of ...
1
vote
1answer
284 views

how to access my lan based postgresql db from my website

We have lan based .Net application with Postgresql 8.1 , now i have task to provide interface on website to read and write two tables on LAN based database I don't know where to start Please help me ...
2
votes
2answers
224 views

Restricting RDP sessions over Internet but not LAN

Fair warning: I'm a programmer, not an IT person. Thus I have no idea what I'm talking about and put myself entirely at your mercy. I have three dedicated machines that we currently administer ...
-1
votes
2answers
180 views

Why isn't the root domain also a name server?

I was trying to understand the inner workings of DNS. To clarify things, when I say the root domain I mean the root domain without a name. So when I type http://www.example.info, it will check the ...
0
votes
2answers
101 views

Acces NMS present in intranet through internet

I am having NMS application(OpenNMS) running in my intranet network at 172.16.3.32.I have developed an android application which call the webservices running on the NMS machine.I have successfully ...
2
votes
1answer
175 views

Same internet connection is fast on Windows 7 Pro, slow on Windows 2000 server

in my company we have an old Dell running Windows 2000 server and ISA Server and it's our Internet gateway / firewall. Our current Internet connection is an ADSL and it's fairly slow (about 1 Mb/s in ...
3
votes
2answers
385 views

request.status 12031

We develop a web application for internal use at our client sites, and it relies heavily on ajax requests. We have 20+ clients nationwide, many of whom are on the same version, and most with a high ...
10
votes
3answers
839 views

No internet after dhcp lease renews

Today we had a number of machines stop getting internet access. After a lot of troubleshooting, the common thread is that they all had their dhcp lease renewed today (we're on 8 day leases here). ...
2
votes
3answers
746 views

Intranet radio station over network

My company runs shopping centers around the country and from time to time we receive complaints regarding the music selection playing in the shops. I'd like to build a centralized music streaming ...
0
votes
2answers
89 views

Procedure for Setup of Internal Cache Server

I currently have a small business where many of the computers download the same fies over and over again (for example Windows Updates). What I'd like to do is setup a cache server, something that'll ...
1
vote
3answers
518 views

Internet access control without squid

I intend to configure a server as a gateway. I'll use it to manage network users, as well as share the internet connection for this network. I will not share the Internet with squid, but I still ...
3
votes
3answers
183 views

How can a domain name have no nameservers?

I have found several domains on the internet that have no nameservers, however they have WHOIS records and domain registrars say they are taken. My understanding of DNS on the internet was that the ...
3
votes
3answers
243 views

Monitoring Internet latency

I've been using smokeping to monitor internet latency (for early problem detection) at 8.8.8.8 for several months. On Friday the average latency went from 12ms to 55ms and has been at the 55ms plateau ...