LAN, short for Local Area Network, is a network that connects multiple devices in a limited geographical area, such as a room, an apartment or a building. Currently, most LANs are based on Wi-Fi or Ethernet transmission.

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Selecting the right switch?

A LAN of 70 - 80 users, with 6 Servers (DB, Mai, Web, AD, File) ; we are thinking to upgrade the switches ; Your suggestions / recommendations required as to which ones to get and how to connect them ...
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4answers
660 views

Entire home network slows down due to Linksys WRT54GL [closed]

This is the second one I'm trying, so it's either me or something else is up. When I connect any of my LAN devices directly to our cable modem, the speeds are perfect. No latency, no packet loss and ...
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2answers
139 views

web server on a lan

I wan to set a webserver (apache) to work on a lan (4 to 7 PCs connected via a switch ) for educational purpose only (learning how a web server work)?. what I need to do ? if you have any link to ...
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3answers
15k views

Load balancing & NAT-ing multiple ISP connections on Linux

I have two internet connections from two different ISPs and I need to balance the traffic originating to and from my network between the two ISPs. I am using Debian GNU/Linux. My set-up is like this ...
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8answers
231 views

localhost name error with linux machines

CASE 1: I have a Ubuntu machine with name midhun.local I can access this in http://midhun.local/svn ... But its can't access from other machines(both Windows and Linux) through this host name. But ...
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1answer
501 views

Troubleshoot slow LAN on ISP routers

This is sort of a vague question, but its really been bugging me for a long time. I cannot seem to get a connection between two computers to go above 300 kbit/s in my LAN. This seems to be a magical ...
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4answers
41k views

How to route different traffic thru different network interfaces (in Windows)

I've searched for details on how to do this but I've been unsuccessful - I wondered if someone could offer up some advice. So, let's say I have 2 network cards (LAN and 3G in my instance), both ...
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1answer
637 views

View a localhost:port address over LAN

I'm working on a Sinatra app so I have a Mongrel instance running at localhost:4567 on my main machine, a Macbook Pro. How can I view the app over my LAN, preferably from an iPhone? If I enable web ...
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4answers
7k views

Per-user hosts file

Is there a way to define host aliases (like in /etc/hosts) on a per user basis, i.e. in a file /home/user/.hosts ? My primary objective is to easily share host aliases via rsync between the machines ...
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2answers
267 views

Validity of my basic Performance Testing Results on a LAN

Networking is not my main job and i am hoping you guys can comment on my test procedure so far to identify PCs best to host a few voip softphones. Our 100Mb LAN comprises of 40 Win XP/2000 PCs and a ...
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1answer
434 views

Computer disappeared from Workgroup

I've a LAN that has 8 computers running Windows XP and only one (Computer A) running Windows Server 2003. When computer A boots, it shows up in all computers' Workgroups, but after 15-30 minutes, it ...
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1answer
511 views

DMZ - LAN and Webserver

i know that DMZ should contain servers that acts as a middle point between the trusted area like LAN and the other semi or non trusted area like internet or another DMZ. based on this declaration our ...
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4answers
5k views

What are good and bad jitter times for a LAN

Ive just ran jperf (frontend to iperf) on our network between 2 workstations, its recorded jitter between 0.033ms and 0.048ms. Is this good or bad? Are there more variables that i would need to ...
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2answers
117 views

What switch spec would i need to support 50 SIP extensions

Were a call centre and thinking of moving our phone system to a voip based setup. It seems most advice advises keeping this network seperate from the standard LAN, what switch specification would be ...
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1answer
723 views

What free utility can I use to test LAN performance and quality?

I want to test a LAN for speed and reliability, I wanted to use qcheck but it won't instal on any of our XP systems. What other tool could I use? Is there anything with voip tests that is free? Does ...
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1answer
2k views

Unable to connect to a local MYSQL server on wireles LAN

Ok, Here is the technical description. My laptop's config: Ip Adress:192.168.2.5 Mysqlserver 5.0 on port : 3306 Operating system: Ubuntu jaunty (9.04) 3306 is open for both incoming and outgoing. My ...
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1answer
38 views

Setup Host machine to allow HP G5 to boot different roles

Can anyone point me to online doc/tutorials. On how to setup an test frame enviroment. So that by renaming directories on a host machine I can boot my G5 box to be a IIS server, SQL server, Sendmail ...
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2answers
686 views

LAN to LAN over internet

Hy everybody, I have one crazy question :) Is it possible to connect two computers over Internet in such a way so that you can see them both in a My Network Places as two PCs on the same LAN? For ...
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3answers
1k views

connect PCs on LAN to internet (using RRAS)

Inventory: Multiple PCs [WinXp/2K] on LAN (192.168.10.x) [default gateway is 192.168.10.100] One DSL modem at 10.1.0.1 One PC [Windows 2000 AS] (dual NIC with RRAS) with: a. 192.168.10.100 ...
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2answers
358 views

Reboot ML350 G4 Server in sealed room

I have an old server in a remote location. It has its own power feed which is subject to failure twice a month. The problem with this failure is that it does not simply drop and recover hours later. ...
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4answers
722 views

Pinging DHCP clients by name

The office has a small LAN, composed by a Linksys WRT54G2 sharing a DSL connection, a hub, and several wired and wireless clients. DHCP is enabled in the Linksys. The DHCP clients table shows the ...
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3answers
449 views

Connecting 2 subnets securely

Im working on a plan to isolate some parts of our work network. Ideally some computers need to be decoupled from our main network (they do extremely sensitive work and so need to be extra secure from ...
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4answers
402 views

How to enable access to LAN?

I don't have a domain name. And I browse my site by "http://localhost" How to enable visit my site by guys not in LAN?
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4answers
2k views

How to find a directory disk usage over network? (Windows)

I have an external disk that is connected to a LAN network. I want to find the disk usage of a directory on the disk from a script. I looked at power shell and SysInternals tools but couldn't find any ...
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4answers
5k views

If you need to open ports from DMZ to LAN, at what point is the separation no longer worth it?

If you have a DMZ with one or more servers/services (maybe FTP, HTTP en SMTP). And you have a LAN with typical serversservices (like file sharing, Active Directory, database server). Depending on ...
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4answers
4k views

Connecting multiple switches to a router

We have an office network that consists of the following: 1x Vigor 2950 5-port (WAN Load Balancer) 2x Netgear 24-port Managed Switch FSM726 1x PowerConnect 2724 24-port The Vigor has our two ADSL ...
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3answers
629 views

Best method and tools for local IP scanning

I’m starting to administer a small but confusing und badly documented local heterogeneous network (mostly Windows workstations, printers, laboratory equipment, etc. and one Linux/Samba Server) ...
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6answers
137 views

websites on local networks

hey guys, I'm trying to use wampserver to set up a website that is accessible from anywhere on my lan, but I can't get it to work. Anyone have any tips/suggestions to help me out?
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3answers
158 views

Is it normal for port 23 to be connected to periodically?

While working at a customer site (a LAN that includes several Windows machines, plus our server) I noticed that something was periodically attempting to connect to our server on port 23 via TCP. ...
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2answers
1k views

Smoothwall NOT giving out DHCP

I have a Smoothwall machine with 'green + red' setup. The Smoothwall machine can see the outside world and I can connect to it from inside my network with its local address (I can also connect from ...
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1answer
191 views

Network card requires reset

One Vista PC in our small office fails to initialize networking about 1 reboot in 3. Vista's diagnostics are never able to repair the issue. However, the problem can be consistently resolved (until ...
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6answers
3k views

How do I set up a LAN-wide DNS server?

I'm familiar with the trick of of editing the /etc/hosts file to direct your computer's traffic to specific IP addresses. Now, I'm looking for a LAN-wide solution. Of course, I could edit all of the ...
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3answers
1k views

Video conferencing and screensharing options for Windows [closed]

We are in need of conferencing solution for our Windows network. Due to security restrictions, the traffic all needs to stay within our LAN. The conferences would all be small and a peer-to-peer ...
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3answers
273 views

Create a “Virtual” LAN (not a VLAN)

I've just finished reading an article on ARP spoofing, and I've become intregued by the subject. The article cleared up my understanding of how networks work, but there is still a lot I don't ...
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4answers
5k views

What happens if you short-circuit a network patch cable?

Today we had some network problems and after some nested-interval trial and error we tracked down a small 4-port hub where someone had connected both ends of a patch cable to the same hub. After ...
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4answers
3k views

Outlook 2007 slow connecting Hosted Exchange on LAN only

Were migrating to a hosted exchange service from rackspace.com from an in-house exchange server. Outlook 2007 on the LAN where the in-house exchange server is located connecting to the hosted ...
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4answers
6k views

Two NIC cards with the same metric - Internet traffic going out the wrong one

I have two NIC cards in my computer - one is connected to our corporate network and the Internet, the other is connected to a private LAN through a Linksys WRT54G. Both cards use DHCP. This was never ...
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5answers
3k views

QoS for very basic LAN/WiFi network: Do I need SmoothWall or OpenWRT or just good advice?

Here is the basic situation/topology of the network I manage: Residential, but we are a co-op, so we have a business-class contract with ISP. The residents are college students, so there is quite ...
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2answers
667 views

Why is my system constantly downloading from 255.255.255.255:bootps?

On my workstation I noticed that my network utilization is high and constant even though I don't have any downloads currently going. I fire up iftop and see the following entry at the top: ...
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3answers
7k views

Best way to create a vpn between two windows machines?

I'm looking for way to create a VPN between two windows machines. I want the installed software to behave as if the two computers are connected through a LAN. What's the best (free) way to do it? ...
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1answer
3k views

Access tomcat from outside LAN

Hi I'm developing a web app in eclipse and using a tomcat server (6.0) integrated with the IDE. I'm perfectly able to access the webapp from localhost or another computer in the LAN ...
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5answers
973 views

Manage local network Internet usage

I have a LAN with 6 PCs in my office and one Internet connection. I share this internet connection by Windows VPN service.(using windows 2003 on server) But I want more control on users bandwith ...
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3answers
4k views

Unable to connect on natted server from a host computer on the same LAN using public IP address

I have a server statically NAT’d using a registered IP address and it is accessible from the outside. The problem is I cannot access my server from the inside using the registered IP address with a ...
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4answers
5k views

Share LAN network through Wifi in Linux

I have an ubnutu server connected to internet by an ethernet cable to a router. I would like to share the Internet connection by a Wifi usb dongle connected to the server. What are the possible ways ...
1
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3answers
6k views

VPN, LAN, Amazon EC2 instances , how to?

The problem is as follows: I have 2 windows2003 server instances running on the cloud. 1) How can I create a local area network from these 2 instances? 2) Assuming that I want to create a VPN ...
2
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2answers
1k views

Why can't I print from Windows on CUPS from a single application?

I've set up a Fedora 10 server and I want to print to an attached printer from three Windows Vista and two XP workstations. After much manual reading I got this situation: All workstations can ...
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4answers
160 views

Possible Issue With (what I think is) a Virtual Network

This really isnt my area of expertise...and it may be obvious, but here it is: We have what I guess you could call a virtual network. We have 4 locations in 4 cities connected by broadband internet ...
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11answers
4k views

How to monitor all network connections in LAN?

I am interested in monitoring all the network connections within my LAN. What options are available?
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1answer
2k views

DHCP and mDNS magic - I want automatic $hostname.mydomain answers on my DNS server

I've seen the wonders of mDNS-based service discovery, but I haven't had much time to look more into it. I also there was references to it in DHCP config files or something. How can I use mDNS to ...
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1answer
370 views

How can I set a Gigabit network instead of the 100Mb? [closed]

I'd like to know what kind of hardware I'll need to set up a Gigabit network in the company I work in. We're 12 workers with a few splitters and 3 servers. We already have a Gigabit router and 1 ...