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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What should I pay attention to when I'm buying a network switch?

Since I'm not a hardware expert, I don't know what features make a network switch a good network switch. What should I pay attention, when I'm comparing the different models from different vendors?
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3answers
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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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4answers
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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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6answers
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Encrypting absolutely everything, even within the LAN

Has anybody tried that approach already? I'm really considering it: Instead of relying on network based IDS etc., every packet must use encryption which was initiated by a certificate issued by my own ...
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3answers
4k views

IPSec for LAN traffic: Basic considerations?

This is a follow-up to my Encrypting absolutely everything... question. Important: This is not about the more usual IPSec setup, where you want to encrypt traffic between two LANs. My basic goal is ...
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2answers
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Splitting up multiple WAN's on Sonicwall

I have a cable connection running to our FW. We are supplanting that connection with another fiber connection to be used on a separate LAN. The cable connection and LAN is running fine. If I ...
0
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4answers
118 views

Server with 3 network cards

Totaly edited: I have 3 nic with links eth0 eth1 eth2. I made 3 table T1 T2 T3. In /etc/network/interfaces i wrote: auto eth0 iface eth0 inet static address 1.0.0.1 netmask ...
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1answer
59 views

Office network failover? [duplicate]

Possible Duplicate: What hardware do I need to add a backup internet connection? I have a office LAN providing internet access to several workstations. Each workstation is basically ...
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1answer
300 views

how to find VLAN

i want to find whether our lab have the VLAN or not. my various LAB ip addresses are 10.1.8.1 10.1.7.1 10.1.6.1 10.1.5.1 192.168.1.1
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8answers
233 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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4answers
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Should a webserver in the DMZ be allowed to access MSSQL in the LAN?

This should be a very basic question and I tried to research it and couldn't find a solid answer. Say you have a web server in the DMZ and a MSSQL server in the LAN. IMO, and what I've always ...
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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
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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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7answers
909 views

10 gigabit networks: Decieding between fiber and twisted pair

With a green field installation 10gbps network (no legacy equipment to support), why would one select one physical medium over the other? If left to impulse, I'd probably go with fiber optics over ...
5
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10answers
3k views

Find Sniffer on LAN

HI, What tools or techniques are available for *nix and Windows that help in finding if someone else on the LAN is using a sniffer? Having said that and strongly considering that there are tools out ...
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3answers
535 views

how to connect 2 independent computer networks?

I have 2 independent networks that are connected to internet. Each systems in a network can connect to the internet through the corresponding router/NAT device. i wish to connect these two LANs. I ...
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3answers
4k views

Routing WIFI and LAN for specific traffic

I have two network devices aboard my macbook pro: WIFI (en1): Used for general traffic. Connects to an ip of 192.168.19.* via DHCP LAN (en0): Used for specific traffic. Connects to an ip of ...
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1answer
179 views

How to force a host to not send a broadcast for an IP address in its own subnet?

For a LAN, instead of a switch, I have built a topology where each machine is connected to a router. Each host is assigned an IP address from 10/8. Here are the interface details: Lets say I ping ...
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3answers
1k views

Web based file search in the lan?

I would like to search files in my lan easily. (over 500k files on SMB shares, it would take ages with other ways) I mean, i just need to do a quick search on file names, i don't care content ...
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2answers
3k views

LAN Design Question with HP Procurve

HP Procurve 2510G-24 x 2 Port (For Servers) and 2 x HP Procurve 2510-48 Port 10/100 (For Desktops). Topology is like : Patching is terminated on 2nd floor and the servers are located on the 1st ...
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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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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
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Static Routes on Windows - Computer with two NICs connected to two routed networks

I asked this on another site recently, but I figured this might be a good place to ask this as well: Please take a look at the diagram below. My question is in regards to computer "C" in the middle ...
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2answers
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Server won't respond to ping

I have a server that won't respond to pings, but I can remote desktop to it. The server has two LAN connections. Each has the same subnet mask and default gateway, but separate IP addresses. I'm ...
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3answers
635 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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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 ...
0
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1answer
154 views

How can I access a server on local network using its public name?

I have a problem in which I cannot access a server using its public name from the same network as the server. Access to the server works fine from the internet. Reading up on this problem, I've ran ...
0
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1answer
542 views

How to create routes for LAN IPs in Windows XP

Hello i'm trying to use lan and 3g network at the same time on XP, as per previous questions i need to create routes for lan ip ranges. How can i do this
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3answers
656 views

Accessing printer from another subnet

I have a network composed of 2 subnets with this topology : Router1 (Freebox) : 192.168.0.XX Masq : 255.255.255.0 | |----- PC1 |----- PC2 |----- Printer1 | |----- Router2 (wrt610N with ...
0
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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 ...