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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Best security practice for small networks - wifi, lan,

We regularly setup small networks for clients in different locations to allow them to work on different products now the question what should be the best security practice. Currently we have a wifi ...
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1answer
109 views

Redirect users to internal webpage on first visit

I have a lan of maybe 20 - 30 computers, and a Windows server 2003 server on hand (I can also run any x86 Linux distro). What I am trying to do, is to redirect users to a webserver inside the LAN the ...
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1answer
543 views

Possible to setup OpenVPN between two servers? And how?

Apologies if this is a FAQ but I did not find it in the answers, hence, I'm positing it here. I have a following scenario and I am curious how can I use OpenVPN-(AS) to solve my issue. I have two ...
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3answers
261 views

Detect alive IPs in an unknown static-IP based network

I ask just in case of curiosity and this is just an imaginary network Imagine an internal LAN network without any DHCP server implemented; So to access the network we should use static IP(s); But my ...
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1answer
1k views

no more address or address previously allocated by another server tftpd32

I am getting error Client requested address 0.0.0.70 [27/08 08:47:17.406] no more address or address previously allocated by another server [27/08 08:47:17.406] Rcvd DHCP inform Msg for IP ...
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2answers
831 views

Bind WAN IP to LAN (under router) IIS

I am hosting my own website on my local machine and set up a virtual server on my router and everything works like a charm. In IIS, i cannot bind the WAN IP, as it doesn't show up, and if I type it ...
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1answer
82 views

Network-wide domain?

Is there a way to, on my wireless network, have a domain assigned to a network page? For example, could I have "media.com" link to "192.168.0.101/sharedmedia.html"? It would also be good if I could ...
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2answers
1k views

How do I simulate a WAN inside a LAN for remote office server setup?

I need to send 3 vmWare ESXi servers (hosts) to thee locations around the world. Each host will have 3-5 guest VMs performing various tasks. Each host will live behind a firewall configured with a ...
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3answers
341 views

Configure dns server for domain name without prefix

Trying to set up a local dns server as to speed up intranet development. I use bind9 set a sub domain named mydomain.com with /etc/bind/db.mydomain.com. The problem is that I can correctly resolve ...
0
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2answers
228 views

Linksys SE1500 Ethernet switch issue

I just bought a Linksys SE1500 Ethernet switch and I'm trying to set up a small standalone network for pentesting and security research. However, when I do a network scan with one of the computers ...
2
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2answers
551 views

Does traffic from accessing locally-shared file via UNC path still go through the switch?

if I'm accessing a local file via UNC path, for example //hostname/abc.txt, Will the traffic still go through the switch or it's clever enough to figure out this is a local machine, i.e. will there be ...
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2answers
593 views

How to create LAN segments in qemu

I could successfully connect two different virtual machine ports directly using LAN segment feature in VMware workstation. Is there a way to do the same on qemu ? As of now i have created two qemu ...
2
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1answer
240 views

Odd ping results : another device answers the ping

On my LAN network 192.168.0.x. My computer is linked to a small Netgear router 192.168.0.19. On some ping requests, I get an answer from the router, not from the actual server. On several requests ...
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1answer
737 views

MAC to IP binding in ASA 5510 / SG 300-52

I am trying to configure a Cisco ASA 5510 to assign specific IP-addresses to specific MACs. Firmware on my ASA is 8.2(5). I have used this feature in our previous device (Cisco SA-520W). I have also ...
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1answer
93 views

Mail server or private or public lan?

I've currently got only one server running Webserver,DB server and Mail server and I want to distribute the services in 3 servers to reduce the strain put on that single server. I've got to NICs on ...
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1answer
257 views

how connect to local mysql server (LAN) [closed]

I got two Debian 6 servers - one for web and one for the database.. How can I connect through the local area network? On both servers I have permanently changed the hostnames /etc/hostname ...
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3answers
454 views

Get the MAC addresses of all the machines connected to a LAN when NO machines have got an IP address yet

Here is the real scenario. I have say 4 machines not having any IP address yet connected to a switch. In one of the machines (OS=CentOS), I would install a DHCP server and would provide the other ...
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2answers
103 views

would a dynamic wan disrupt a static lan? [closed]

So I found out that the cable company use the DHCP to assign the public ip address dynamically. So a subscriber's public facing ip address can change during the length of their subscription. Now what ...
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0answers
86 views

Production windows web servers in AD with the rest Network and users

We have 8 Web servers accessible from Internet and 2 SQL Servers accessible from those 8 servers. What is better: a) Put them all in AD in which other users are (entire company), the connection ...
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1answer
183 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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1answer
458 views

How to know user accounts available on LAN computer? [closed]

I would like to find out a list of user accounts on a remote Windows PC. I would like to do this from the windows command prompt. Is this possible and if so how ? Original Can we get available Users ...
2
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3answers
5k 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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2answers
356 views

How to set up remote login and DNS resolution in a small business environment having centralized server

Dear fellow Administrators, I have a very burning issue I am still hunting an answer for. We had a maintenance involving the IT infrastructure (new computers, cabling, etc.), but we have found that ...
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1answer
385 views

postgres server works on LAN but not WAN (connection refused)

I'm trying to set up a postgres server, but I cannot access it through the Internet. It works fine on my LAN. Server is just a desktop computer using Ubuntu 12.04 desktop. disclaimer: I am not ...
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2answers
3k views

(Zywall USG 300) NAT bypassed when accessing in-house-server From LAN Via domain name

My situations is like this; i host a number of websites from within our joint network solution. On the network is basically 3 categories: the known public, registered via mac, given static dhcp ...
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3answers
60 views

Can I extend an otherwise wireless network to a wired-only computer through a second wireless router? [closed]

This question is incredibly similar, but DIFFERENT. so before you vtc, please hear me out. I have my wireless router [router1] connected to my ISP. I have a wireless network being broadcast from ...
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1answer
147 views

Strange connectivity issues between workstations and Servers

I have a situation whereby there are 3 sites. Site a - User site Site b - User site Site c - datacentre Site a can talk to site c fine Site b can not talk to everything in site C In particular, ...
0
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1answer
177 views

How to access Virtual Machine in LAN with proxy [closed]

I have setup a website in a virtual machine running in VMWare Workstation (Trial). I need to access that website in our LAN network. But there is a proxy on our the LAN. When I try to access the ...
8
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4answers
4k views

Linux router: ping doesn't route back

I have a Debian box which I'm trying to set up as a router and an Ubuntu box which I'm using as a client. My problem is that when the Ubuntu client tries to ping a server on the Internet, all the ...
5
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2answers
3k views

Enable user registration - eJabberd

I am a complete n00b to configuring Jabber/XMPP servers and I am hoping to get some help getting set up. I have done all of this and installed pidgin. I seem to be able set up my "admin-user" in ...
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1answer
3k views

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 ...
0
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1answer
54 views

network restricted website

How can I restrict my network connections to a only my web-server? EG, a user would connect to my network (WIFI/LAN) when they open a web browser and enter 127.0.0.1 it will load my app. But if they ...
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2answers
380 views

MDB database file moved off-site

A large client that uses my MDB based application has moved the MDB file off-site so that my application connects to it over a WAN. How can I convince them to put the MDB file back on-site on to the ...
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1answer
345 views

Setting up a Windows Server based Office LAN / WLAN environment

Okay so we wish to setup a small office LAN / WLAN. We have 10 desktop PC's and 5 Laptops. which makes around 20 users. Those with laptops will only connect via the wireless network, if needed they ...
3
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3answers
4k views

Access ports versus trunk ports?

Can someone please explain the difference between access ports and trunk ports on a switch? I'm starting to learn networking, and my understanding is that access ports are used to connect endpoints ...
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1answer
523 views

'Gigabit' Ethernet Port Tester? [closed]

A quick google search shows there seems to only exist handheld testers for 10/100 Ethernet ports. Any ideas why that is and where we could find one that works with a Gigabit LAN? Perhaps the 10/100 ...
0
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1answer
371 views

Forward access to Apache on a virtual machine (vmware)

I have setup a server in a virtual machine using VMWare. The server is Apache running on Debian (the virtual machine). The host machine is Windows 7. Now, I would like everyone on the LAN to be able ...
3
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2answers
1k views

Samba domain trust errors on a specific interface

We have a windows domain that also has a RHEL member server in it. All the servers have a primary network connection to the LAN, but some servers also have private dedicated links to the RHEL server, ...
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4answers
4k views

Can't communicate between lan ports on openwrt router

I've got a WBMR-HP-G300H Buffalo Airstation router on which I've installed the lates OpenWRT software. All is working well (ADSL, WIFI etc) except for one niggle. I can't communicate between lan ...
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0answers
102 views

Remote call script as administrator

I created a Windows XP bat script to modify etc/hosts file. I want to share this script at other machine, then from another computer I want to invoke these script to modify hosts file at first ...
7
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2answers
2k views

Do switches sometimes need rebooting?

In your opinion, do switches sometimes need a restart? I'm asking this because today our NAS stopped working properly, and was only fixed when we restarted the switch it was attached to.
4
votes
1answer
2k views

Are Link-Local routes necessary (IPv4)?

I noticed in my routes output in RHEL6 (and most 2.6.x series Linux), for every interface I see the creation of the following route in my kernel routing table: 169.254.0.0 0.0.0.0 ...
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3answers
708 views

Can't Ping host, nmap detects it?

I have a simple question that I'm trying to wrap my head around. I know this requires knowledge of my internal network, but at a glance, what do you guys think.. I cannot ping a host in my network ...
0
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1answer
87 views

LAN with around 10 Computers loses internet connection

We have around 10 computers in our private LAN. There is currently 3 routers and one big swich connecting all the computers. 2 of the routers had there DHCP disconnected in the beginning. In the ...
2
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3answers
100 views

what's the difference between ICMP prohibited ICMP unreachable?

If I want to forbid a route to response a network, should I use ip route add unreachable 209.10.26.51 or ip route add prohibit 209.10.26.51?
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1answer
248 views

Using two lan eth0,eth1 by ubuntu server

I have a ubuntu server. I need to use eth0,eth1 by connecting two LAN cable. I edit network interface by vi /etc/network/interface. eth0 works fine but eth1 dose not work. What is my problem? # This ...
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3answers
308 views

How to configure PC as a gateway?

I'm researching a project. If lets say a lab has 20 PC, 1 tutor PC and the rest is 19 student pc, and in my project all the network traffic from student pc should go through the tutor pc before ...
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1answer
94 views

Network Balancer for LAN?

Can it be possible to give a higher priority to certain PC's internet speed? Curiosity ran into my mind.
2
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1answer
2k views

How to configure pfsense to use LAN ports as local switched ports?

I have a pfsense box with 6 LAN ports. I'd like to use one as the WAN port, and 5 as local LAN ports, just like a home gateway/router. How to setup the LAN ports so that they are all in the same ...
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1answer
537 views

Gateway Modem loses ability to DNS lookup intermittently, often under heavy load

We're using a Bell 2Wire Gateway modem/router as our only hub (with some switches attached). Intermittently, but frequently when a large download is initiated, all computers on our LAN lose the ...