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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Using Network Interface With Multiple IP Addresses

If I have a network interface with multiple IP addresses bound to it can I set which IP address on the interface my server uses? It sees to be set to use the first IP address I added to it. Info: ...
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2answers
93 views

is it possible to findout who creates a hotspot in a LAN?

In my LAN there are some Mac users who share their LAN connection by creating a hotspot via their Airport. I can see the newly created WiFi networks on any WiFi capable device. How can I find out who ...
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1answer
151 views

Slow internet connection - what to do? [closed]

These are the network specifications: 6 desktops, all with Windows XP Professional SP2 3 of these desktops have wireless cards 3 of them are connected through Ethernet cable to router Router: ...
2
votes
3answers
306 views

Using a GNU/Linux VM through SSH on the internet, is it safe? [closed]

Is it safe using SSH to connect to a Linux VM? (Hosted by http://linuxzoo.net/) By using PuTTY to SSH in, am I exposing my machine to the internet/host by doing this? What security concerns should I ...
-1
votes
1answer
307 views

windows server 2008 cannot connect to internet [closed]

I am working in project to create local area network for school I created domain school.com and connected the clients with it and assign IP the problem is windows server 2008 cannot connect to ...
10
votes
3answers
721 views

Irregular internet disruption: certain images and JS not loading

first time on ServerFault, and I've got a nice little conundrum. Since a few months now, we've been having issues with our internet connectivity. Environment: Servers: 2 Terminal Servers as an ...
-3
votes
2answers
136 views

How do I choose my static IP addresses [closed]

I'm trying to set up a basic server that can be accessed on the WWW via a domain name. Using Ubuntu 12LTS Server and am stuck on Step 7 of this tutorial: ...
0
votes
2answers
22k views

Can't ping or reach external IP or domain on CentOS 6.3?

I have installed fresh CentOS 6.3 on my machine. Internet is not working at all. How ever I can ping my router and other computers connected on LAN. I've googled and searched various forums but all in ...
2
votes
3answers
190 views

Gigabit switches

We currently in our office have a 20 Mbps fiber optic internet connection with Time Warner. We decided to upgrade our connection to 100Mbps. When the technicians came out, they upgraded the circuit ...
1
vote
5answers
3k views

Microwave Internet vs optical fiber [closed]

Our ISP if offering us Internet via a direct optical Fiber link or a licensed frequency microwave link. assuming there is not obstacle and same distance, which link is more reliable (up-time %) and ...
-1
votes
1answer
1k views

MikroTik RouterOS 5.18 Does not connect to internet after restart

I am setting up a RouterOS on an x86 machine. The router is configure and is connected to internet via PPPoE internet connection. I am distributing it to 5 PCs and a Router via RouterOS PC. The setup ...
0
votes
3answers
3k views

Creating my own dial-up internet service

Our company has invested immensely on "machine-to-machine" modems, equipped in embedded machinery over the last decade. These work with old-school internet dial-up service. These machines need to ...
5
votes
2answers
216 views

Modelling University student Internet usage

I am working on a project for a university housing client where I need to model the usage patterns of students living on campus. There are obviously many variables at play here, I am keen to ...
0
votes
1answer
103 views

Multiple broadband providers for internal web servers

Maybe I am using the wrong search terms, but I am having problems finding the answer to my question. We have internal servers hosting our web site. We would like to bring in an alternate provider so ...
-1
votes
1answer
3k views

How to distribute the leased-line internet connection between 15 systems? [closed]

We have a 2 MBPS dedicated leased line with 8 static Ip's, and we want to use it on 15 systems with one server. Service Provider offered the 1:1 Speed with 98.5% uptime. I would like to know the ...
-1
votes
2answers
191 views

What happens when an unexpected packet arrives at a computer? [closed]

I have been wondering this for a few days. I basically understand how networks and packets work. But what happens when an unexpected packet arrives? Like, when I didn't send a request for a website's ...
1
vote
1answer
50 views

How to replicate the internet connection when a XP Workstation is Virtualized?

Hi here is the issue for me; We have a Workstation A which is connected to our Server B ; this workstation's sole puspose is to work as a terminal server for the outside vendor to login to the server ...
0
votes
1answer
8k views

Clients connected to Cisco router can't access to internet

I'm currently undergoing CCNa academy so I got a "job" from my boss to configure Cisco 871 router. Unfortunately we just finished first semester at academy so there are some things that I'm still ...
0
votes
1answer
69 views

External Client should use our proxy to get filtered by our firewall

I would like an external client (4.3.2.1) to use our proxy (9.9.9.9) which forwards traffic to our firewall (8.8.8.8) which then forwards the traffic back to our client (4.3.2.1). So I'm curious if: ...
1
vote
2answers
739 views

Node.js WebServer on Ubuntu 12.04 not visible externally from the Internet (external IP)

Router: IP: 192.168.1.1 Host OS: Windows 7(64 bit) - IP: 192.168.1.2 Guest OS(VMware): Ubuntu 12.04 LTS(64 bit) - IP: 192.168.1.10 Guest OS has a NAT and a bridged connection via VMWare. I'm running ...
1
vote
1answer
80 views

Server is pingable on some ips but not on others

We have comcast business class internet with 5 static IPs. 4 out of 5 of them are assigned to a server that sits right behind the smc. The smc has DHCP disabled so it should be in pass through mode. ...
0
votes
1answer
738 views

Domain rebuild from scratch

I have to rebuild the entire domain of a company I just started with. It currently runs SBS2003 but it is "FUBAR". MMC is not working, I cant use the BPA on it. I cant get adprep to work to do the ...
0
votes
1answer
4k views

Assigning a public IP on Windows Server 2008 R2

We've recently acquired a Dell PowerEdge r420 server (2 NICs). After installing the OS (Windows Server 2008 R2), we've installed SQL Server 2008 and IIS. Now we have a public IP given to us by the ...
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votes
1answer
544 views

Make local server accessible from internet in a local network within a sub-domain?

I recently tried to open a mail server for our company. For some reasons it was better to make mail server separate from other server(s) in data center, so we plugged another server to our local ...
-3
votes
1answer
323 views

Have access to internet but ping 4.2.2.4 results in 100% packet loss [closed]

I am running openSUSE 12.2 on my machine. When I try ping 4.2.2.4 in my konsole I get 100% packet loss, but I have access to internet. How can I fix this? I always thought if ping 4.2.2.4 doesn't ...
1
vote
1answer
125 views

Can not access tomcat's default page

I am quite new to Tomcat. I use win XP. I have installed Tomcat 7.0.3, started it. I have started a browser, go to localhost:8080 and I can see the congratulations page, saying that tomcat is ...
0
votes
1answer
243 views

Access device with local ip over internet

I apologize up front if this is the wrong place to post this question. It seemed like the best fit. I have a device which is connected to my local network which has an IP of 192.168.1.10 from my ...
1
vote
1answer
368 views

Conigure Linux server to do lawful interception

I have a server that makes the routing for my LAN (Linux, CentOS). I would like to have on it the possibility of lawful interception: I want to be able to see all network traffic that was done from my ...
-2
votes
1answer
79 views

how can I verify whether multiple ip addresses are hosting on same server? [closed]

Many hosting providers put multiple ip addresses on same physical machine. If I have two ip address, for example: 192.168.1.100 and 192.168.1.101. If I can only send probing packets from afar, how can ...
4
votes
1answer
175 views

Virtualisation for Public Library PCs with vSphere Hypervisor

I'm working at a public library, we have 20 or so Windows 7 PCs available for the public to use. At the moment they use Deepfreeze to maintain the base state of the OS so that users can't mess things ...
0
votes
2answers
245 views

What is the purpose of the “Network IP address”, why can it not normally be used? [duplicate]

Possible Duplicate: Is X.Y.Z.0 a valid IP address? Maybe a noob question but when referring to IP subnets, what is the purpose of a network IP. i.e. with a network like 192.168.1.0/24, you ...
2
votes
1answer
174 views

SPF from neutral to positive

I need to be able to configure SPF rule for my domain. Problem is that I can normally receive all the emails. But when I send to some recipients they receive it as spam. In the mail failure delivery ...
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votes
1answer
85 views

APACHE httpd.conf error

I have recently installed the latest Apache. It is working fine through localhost:80 and through 10.0.0.51:80, but I can't connect through [External IP]:80. I have forwarded ports correctly, but I ...
2
votes
1answer
4k views

Windows Server 2012 guest machine no internet or LAN

I have a windows server 2012 with hyper-v added as a feature. I have created a server 2012 and a windows 8 guest machines. The windows 8 machine has internet connectivity and can successfully be added ...
1
vote
2answers
132 views

OID (directory service) Installation and configuration on Windows 2003 R2

I need your help in installing and configuring Oracle Internet Directory service on Windows 2003 R2 server machine, I was wondering if anyone can provide any useful tutorial links on the same. I did ...
0
votes
1answer
207 views

Diagnosing WAN performance & peering issues without a second ISP uplink as a comparison?

Background: I am able to access Twitter & Serverfault from work (using Level3) with no problems. However when I use RCN I get crummy service and am not able to load the page. Page reloads ...
-4
votes
2answers
166 views

Windows 7 OS Cannot Access Google or Bing [closed]

A client I do web development for asked if I could help with his PC- it seems a laptop he bought on Craigslist developed a problem a couple of weeks after his latest system update: he cannot run any ...
-1
votes
2answers
145 views

I can't connect to internet via lan cable because 2032 battery died and my bios bios info is now empty [closed]

I have a compaq CQ61-112SL from about 5 years now... the main battery is almost dead, doesn't keep more then 10 minutes. anyway my problem is that my motherboard battery didn't have any more energy ...
-2
votes
1answer
109 views

Is setting up BIND DNS required for making server accessible from internet

I have installed CentOS-6 server in our DMZ. I have a public IP address which I will use for it. Now, how should I set up its DNS in order to make it accessible from internet? Is there any particular ...
5
votes
2answers
198 views

Effects of internet connection speeds on server queries

Can my internet connection significantly effect queries run on phpmyadmin? I am currently 18 down and 30 up. I switched internet connections today and noticed a deep drop in query performance. The ...
1
vote
0answers
2k views

OpenVPN enable split tunneling, client to overload over their own Internet connection

I am trying to enable split tunneling with my VPN network. I am using OpenVPN to host my VPN network and have follwed the steps to get split tunneling working however my clients still get the: 0.0.0.0 ...
-3
votes
1answer
80 views

Design network with redundancy [closed]

I need to build a redundant solution for my company. The idea is to have internet provided by two different ISP in order that if one link goes down the other link will take over. This should be done ...
-1
votes
2answers
427 views

Can't connect to the internet on XP - ping works, nslookup doesn't [closed]

I'm trying to fix an old laptop running XP, it was all working fine until fairly recently but it will no longer connect to the web (via Chrome, Firefox or IE). I can ping out to the IP address for ...
-4
votes
2answers
596 views

How does an ISP find a server using it's IP address? [closed]

So basically my question is fairly straightforward (and I apologize if this is a duplicate question): how does my ISP find and connect to a server using just that servers IP address? I understand ...
2
votes
1answer
301 views

Intermittent internet access on a flat network - Router is connected [closed]

I’m looking for some help with network settings. I’ve just started a new job (non-IT!) and we have problems with our office network. I’m the most IT literate in the organisation (15 permanent ...
4
votes
1answer
1k views

BGP path prepended route not listed anywhere

We have a simple multi-homed setup with two routers that advertise our AS to two ISP. The second ISP (ISP B) is only used for backup when ISP A goes down, so we prepended our AS 3 times on this route. ...
-1
votes
1answer
173 views

Allow 2 different subnets to have access to the internet but not each other [closed]

How would I go about getting say 10.0.1.100 and 10.0.0.100 to both have access to the same internet, but not see each other. My Topology can change to make this happen. Currently I have a ...
0
votes
1answer
447 views

Ports to open in firewall in case of clients getting to a proxy

I have an internal network inside my LAN. The clients are connected via router to the main LAN. In the main LAN there is a connection to internet. I set up a proxy in the main LAN and connected the ...
0
votes
1answer
2k views

Hyper-V VM guest can't ping any machine

So I got Host: Hyper-v enabled machine with four NICs, only one enabled. Network type: External IP configuration are correct for both host and guest (getting it from the DHCP of the company network) ...
0
votes
2answers
413 views

How to authenticate to web based firewall?

I'm new to ubuntu server and I'm trying to figure this out. I have a server install of ubuntu 12.04 behind a fortigate firewall. To get internet access I have to authenticate with the the fortigate ...