Questions tagged [local-area-network]

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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Load balancing ISPs without double NAT [closed]

I configures my TP-Links ER605 multi-wans router to load balance between my two ISPs (that is working). But since my Web/NAS server is behind my router on the 192.168.2.0 network, any computers on ...
Michel S's user avatar
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IPv6 access to site behind OpnSense

I am new to IPv6. I have dedicated server with both IPv4 (single external IP 135.x.y.z) and IPv6 network 2a01:abc:def::/64). Within this server I have few VMs and 2 networks (WAN and LAN). OpnSense ...
kyberorg's user avatar
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3 answers
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Propagate local time over NTP to LAN

I have synchronized my L3 switch to an external time server, this is working correctly. However I'm in Europe and we have CET/CEST switching and I get UTC from the configured time server. I did setup ...
B3ne's user avatar
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6 votes
3 answers
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Connecting hundreds of servers via the local network (LAN)

I'm caching lots of data in memory to a local Redis server. The server will need to connect to hundreds of other servers in the same data center (as they all need to access the same information ...
Levi Hibbitts's user avatar
1 vote
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172 views

How to block access to LAN through Open VPN running in Docker?

I'm running Open VPN server inside Docker on Debian 10. It works great. The problem is the connected client now can access my devices on my local network. I would like to block all access to all VPN ...
Artur Kedzior's user avatar
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Reach LAN Web Server from Amazon ec2 OpenVPN AS Instance. Possible?

Here's my desired end state: From a WAN connection (my phone, a PC that I happen to be using outside my home, etc.), I want to be able to enter an URL (https://example/myapp) that my web server (nginx)...
steadybright's user avatar
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Cant ping my PC on LAN until user is log in directly. destination host unreachable

It shows this when pinging from other devices in the local network From 192.168.0.191 icmp_seq=1 Destination Host Unreachable However once I log in my PC (192.168.0.191) I can ping it from other ...
ABR's user avatar
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Tracking Down Source of Network Instability

If the issue happens, it happens at 10am, for about 1minute between onset and return to stability. It does not happen every day. During the minute, pings go through the roof and packets start to drop,...
Kaz's user avatar
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1 answer
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What does exactly break with double NAT?

There are many warnings about double NAT networks. DSL---modem with router-----second router configured by ISP inner network first NAT second NAT What will exactly break ...
Jonas Stein's user avatar
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Did something stupid that interrupting Ethernet access for "some ports"

I have just installed Ubuntu Server 20.04 on my server, but I executed an automated script without carefully watching, and it resulted in a really weird scenario. I also have multiple webservers ...
Cooper Max's user avatar
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761 views

Is it possible to send mails via Postfix on another machine in the same LAN without having to relay it?

I thought this was a quite common situation, but I'm struggling a bit getting this to work in the easiest way possible, and also, I'm not sure if I'm doing it in a good/recommended way by now. I have ...
Tobias Leupold's user avatar
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What is the IPv6 equivalent of 127.0.0.1 [duplicate]

The IPv4 address 127.0.0.1 is for the local/current client. What is the opposite of the address in IPv6? I already searched for it, but only found ::1. Is this the correct one?
Niklas's user avatar
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2 NIC and access to diffrent lan

Sorry for my English. I have problem with configuration of static routes. My LAN looks like: Router A - 192.168.1.1 | Router B - 10.0.0.1 Connected to : Server Windows Server 2019 Nic1 192.168.10:...
Matt's user avatar
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3 votes
2 answers
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Why will Firefox resolve my domain but Chrome will not

I've been setting up a LAN DNS server using DNSMasq to forward my webserver which at the moment has https and is port-forwarded by my router. I have a domain registered which resolves fine from ...
Adam  M.'s user avatar
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1 answer
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Tips for managing safe and insecure PC mixes [closed]

There are two buildings connected by an optical fiber, each with 3-10 PCs but in a mix of PCs used in a business context and some in homes. Unfortunately, when the network was designed years ago, no ...
Dark Corner's user avatar
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How can I setup NAT with multiple public IPs (/29 subnet) on pfSense?

Our ISP provides a /29 subnet which includes the following IPs: Network Address: 199.1.1.0 Router/Gateway Address: 199.1.1.1 Usable IP addresses: 199.1.1.2 - 199.1.1.6 I would like each of the 5 ...
Coder6841's user avatar
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Mac can be arpinged but not pinged

Why does Mac OS X and Linux do not ping each other on a local Ethernet Network? Edit 2012-12-14 (ten days latter) adapter FireWire to Ethernet RJ45 might be the problem (on MacBook Pro Retina early ...
Bruno Schroeder's user avatar
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1 answer
1k views

BIND9 server for a network with no internet access

The question I have is the same as this one, but the accepted answer, and the comments did not helped me solve my issue. I'll put here the whole setup that I have. BIND9 version - BIND 9.11.5-P4-5.1+...
Julian Dimitrov's user avatar
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1 answer
1k views

How to route lan trafic over VPN

I have two computers connected to same VPN (hamachi) network. There are in different places. Lets say I have this addresses: Machine A: (rpi zero - using wifi) wlan0: inet 192.168.2.160 netmask ...
T0maas's user avatar
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Pfsense : using the server to resolve hostnames as ip in local vlans

I made a network with 3 machines, one is a pfsense server that manage a captive portal, a dns, dhcp server and firewall rules, it is in a trunk network. The second pc is a server hosting some services ...
Spark_TheCat's user avatar
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Impossible to reach website from my local network

My company website is hosted on Simply Transit, running WP. It works perfectly from anywhere outside my company LAN. Inside the LAN, trying to connect to mycompany.com would result an ...
tompollon's user avatar
-1 votes
1 answer
389 views

Best Thin Client Setup [closed]

I'm new here and I'm looking for information for a personal question I have since the beginning of the year. This year I had my first contact with a workspace that uses thin clients, but it's all in ...
Thorquall's user avatar
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Raspberry Pi as internet forwarder [closed]

I thought about building a device that will behave as a forwarder with VPN. I know that I can e.g. take the internet cable, connect it to rpi, turn on vpn and create wifi hotspot. But I wanted it to ...
Norbox's user avatar
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1 vote
1 answer
860 views

Setting up dnsmasq as a DNS and DHCP server on a LAN

My routers: Main Router: 192.168.100.1 Second Router: 192.168.101.1 The Main Router is provided by my ISP(a modem/router combo all in one). I don't have control over its settings. Except for ...
Kavish Gour's user avatar
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1 answer
451 views

Fritz!Box & Ubuntu: Expose URL in LAN with Apache Httpd and Bind

I hope someone can help me with this - I thought - simple task. Situation: On my private LAN I run an Internet-Router ("Fritz!Box") and a Raspberry Pi with Ubuntu 20.04 LTS on it. I ...
manoll0's user avatar
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0 answers
2k views

Wireguard network peers access to lan

I hope you can help me with my problem. I am building a network for personal use and I found some issues, I don't have experience in networks. I will explain using the attached image: Network ...
Rogelio Bautista's user avatar
-1 votes
1 answer
351 views

How can I create virtual machine accessible on local network through web browser? [closed]

I would like to create vm (graphical and not graphical) on an existing ubuntu laptop, and I would like to access this VM through the local network (web browser for example) This is something like ...
Toto's user avatar
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3 votes
2 answers
9k views

How should I configure properly my LAN to use IPv6 for communication on LAN and WAN?

I would like to use IPv6 on my LAN and would like to be able to go out to the WAN as well. My network is a classic IPv4 environment. It works well. My ISP provides Global Unicast IPv6 address on the ...
supi007's user avatar
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Connecting two VMs running in KVM

Short: Get two VM's to talk to each other running on same hypervisor. I have two VMs running under KVM and I am trying to manage them via Cockpit. The hypervisor, and the vm's are running Ubuntu 20.04....
enko's user avatar
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1 vote
1 answer
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Disable LAN Access without disabling WAN on a Hyper V VM

I have a Hyper V virtual machine running on windows server 2019 that will be used to run a guest OS (Windows 10). How do I allow access to the internet, but block it from accessing LAN, network shared ...
Ajax21's user avatar
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1 answer
75 views

What is this private LAN address accessible through my ISP?

Recently some websites I regularly visit (most recently docker.com, atlasobscura.com; both of these sites return an issue with a fortinet-ca2 certificate) have started showing certificate issues on my ...
Nikola Novak's user avatar
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1 answer
339 views

No gateway / LAN without internet / CCTV system

I've tried to post this on superuser.com but they don't accept questions from Tor network now for more than a week so I hope I can find help here since we could say it's network administration ...
johnymcdoe's user avatar
-2 votes
1 answer
452 views

how to configure static lan ip to different router provided by isp?

We have got Vodafone Internet ISP. We asked for 5 public ip's. They had provided 1 wan ip and 5 lan ip pool. WAN Configured and internet working but LAN ip how to use, i need 5 static ip address to ...
bishnu's user avatar
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-2 votes
1 answer
547 views

Connect Router on Different Subnet [closed]

I see people genuinely helping out here but please stop with down-votes.I wouldn't have posted on server fault if this wasn't really a business problem.I am going to upgrade this network with a ...
Dushyant Deshwal's user avatar
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1 answer
450 views

Is physical connection sufficient to register a MAC address to a switch?

I have a computer connected to an unlabeled RJ-45 port. Because it is not labeled, I do not know which switch port the computer is plugged into. My initial thought was that I could login to the ...
JasonF's user avatar
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-1 votes
1 answer
792 views

Do computers have IP address? [closed]

Everywhere I search some people say 'a computer has a permanent IP address' and some people say 'it doesn't but has only when it is connected to the internet through a router'. So my understanding is ...
Nibin's user avatar
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0 votes
1 answer
927 views

Creating user accounts on Computers using LDAP

Scenario is , I have a LAN in which there are number of computers running linux that are connected with local network, Can i create account on different Computer over this network and give them sudo ...
Minhaj Ahmed's user avatar
-3 votes
1 answer
44 views

local server on dynamic IP accessible via FQDN? [closed]

I have a local Minecraft server that I am thinking of exposing via some domain name to other people. The only challenge is that I am on dynamic IP. How can I expose my local server to external world ...
matcheek's user avatar
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0 votes
1 answer
257 views

Missing Network Adapters. Only showing vEthernet

We had an older server at one location, and it was online and backing up online fine. And when the local ISP started charging per gig of usage. So we shut it down. Fast forward a year later, we have ...
James's user avatar
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0 votes
0 answers
916 views

Unable to access apache2 server from any machine except localhost

I have a Magento2 instance set up on a server running Ubuntu 20.04. When I open a browser from that machine I can access the webpage using any of: magento.local, 127.0.0.1, and 192.168.20.11 (which I ...
5a5a8's user avatar
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0 votes
1 answer
552 views

How to connect Brother MFC-L2720DW from the laptop or connected by wire or through Wi-Fi?

(I have very low experience with local networks. I need to connect the shared printer...) The Brother MFC-L2720DW printer allows 3 ways to print: through USB cable, through wired LAN (patch cable, ...
pepr's user avatar
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0 votes
2 answers
6k views

Domain joined Windows Server 2019 - not connected to domain network

I have two Windows Server 2019 machines in my infrastructure which are connected on 'Guest or Public networks' and I have been unable to switch to domain network. I have tried many solutions gathered ...
Charlypop's user avatar
-3 votes
2 answers
2k views

How to map a domain name to a LAN PC [closed]

I've registered a domain name from godaddy and I want to host the website in my personal computer. My PC already installed LAMP(linux+apache+mysql+php) and connect to the router which connect to ...
macyou's user avatar
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1 vote
2 answers
688 views

Access a node from different subnet

I've made a web-application which I installed on a dedicated server connected to our company's LAN. I just have one problem. All the nodes on LAN have 192.168.138.x subnet mask. But wi-fi access point ...
Viktor's user avatar
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0 votes
1 answer
55 views

Network Mapped Drives sensitive information leakage when changing LAN networks on Windows

Assuming the following or similar setup of network drives/locations on a Windows 7+ system originally connected to a TrustedLAN: TrustedLAN Gateway: 192.168.1.1 /24 TrustedLAN Windows System IP: 192....
Fit Nerd's user avatar
  • 127
0 votes
1 answer
870 views

LAN cable-tester's LEDs fire at 3 and 6 (without passive side attached)

I have hardware question. I am running a duplex CAT7 cable from a patch panel to a wall socket. One connection works, the other struggles when I test the cable. Below I describe how I tested the cable ...
1cedsoda's user avatar
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0 votes
1 answer
2k views

Configure iptables to set default gateway for local network

I have an openwrt router with ip 192.168.1.1. What I want to do is to set a proxy server (192.168.1.249) in LAN, and intercepts all communicaitons from two devices (192.168.1.244, 192.168.1.131). The ...
Sooner's user avatar
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1 vote
0 answers
1k views

Squid outgoing address configuration with 2 interfaces

I'm trying to forward the traffic from one network (net1) to another network (network2) via a squid proxy which has 2 interfaces (eth1 and eth0) using the tcp_outgoing_address option. My network is as ...
Isa's user avatar
  • 11
2 votes
3 answers
8k views

Segmenting IPv6 networks using dnsmasq?

I have a bit of a complicated network setup(*) where a WAN router connects to the upstream provider and provides an "external LAN" (where actually I have some services) and another local ...
Guss's user avatar
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1 vote
1 answer
397 views

Win10 can not access one port on one site when connected through my network

I’m doing some work for a company and need to use their VPN to do so. However I’m having problems, quite strange problems. The company’s VPN configuration and client software is available on https on ...
fsteff's user avatar
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