Questions tagged [networking]
For questions on connecting devices together so that they can communicate with each other, as well as questions on networking equipment such as routers and switches.
34,584
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How to put a router with DHCP between my computers and the modem while keeping the 192.168.0.x addresses?
My internet provider has occasional issues and the modem that is a DHCP server for my computers leaves me without a local network until their issue is resolved. So I figured if I put a router (with a ...
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can't connect via ssh to openwrt after change network settings
Setup
Mikrotik RouterBoard 750gr3
OpenWrt 23.05.03
MacBook
ive installed on the Mikrotik the OpenWrt firmware. My pc got the ip address 10.13.1.201. I am connected via port 1 with the board.
Problem
...
- 1
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10
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Firewalling Docker Compose
I'm trying to operate Docker Compose containers behind a firewall on Debian 12. I cannot get access to the host machine (set up to be host.docker.local in the containers) to work within the containers ...
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Google meet is very laggy but everything else works fine, how do I troubleshoot?
I have this interesting issue where only Google Meet calls are very laggy via all laptops (Mac) in my house. Zoom, streaming on Apple TV, and other video tools work fine.
Here are the details:
Using ...
- 1,364
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traefik+metallb external ip stuck at pending
I am running a k3s cluster locally on ubuntu and have made a test deployment of traefik+metallb.
Here is the link to the tutorial I am following: https://technotim.live/posts/kube-traefik-cert-manager-...
- 101
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6
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PowerShell remoting only working on certain networks?
So I am trying to do a project at my work where I automate some process and for that I need to PowerShell remote onto computers using their computer name/host-name. To do this I am using "enter-...
Hunter Adelson
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1
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29
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Is there any evolution going on in L3 layer
In application layer, there're HTTP 2 & 3. In L4 it's QUIC. In lower layers there're various wired & wireless standards.
What about L3? Is there any speed improvement in transition from IPv4 ...
- 206
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18
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Access Point ip address is different in Web UI than what router shows
I have an Edgerouter X as router and a Fritzbox as access point. The ER-X shows a different ip address for the fritzbox than what the fritzbox itself show in its own network settings. Also the ...
- 101
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42
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Devices on a secondary router are not reachable from a primary router
I have two home routers. Router A is a TP-Link AX1500 and Router B is a TP-Link AX1800. Router A is downstairs with its WAN interface connected to my modem. Router B's WAN interface is connected to ...
- 3
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21
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How can I configure WSL2 networking settings to access an Azure Private Endpoint?
I have an Azure key vault resource sat on a Private Endpoint that I cannot access when running my project on WSL2 (it works fine on Windows). I've tried updating the config files (https://learn....
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49
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WiFi not working after adding a loopback address to WiFi interface in Windows
I think I did something that I was not supposed to do.
While trying to learn something, I added a new loopback address to my WiFi interface in Windows without knowing what I'm doing. I typed the ...
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30
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WSL can connect to VM, but not the other way around
I'm on Windows 10 and I have a service running on WSL2 Ubuntu and another service running on a Ubuntu Server VMWare VM, and although WSL can access the VM, the service on the VM seemingly can't ...
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How to connect PC to Fa0/6 and ping router?
The following is the question I have been given.
I have set everything up on the routers and switches as has been asked. What I am struggling with is connecting the PC; the last item in the question:
...
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187
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How do I scan my LAN for .local addresses?
I have found out that at least 1 device on my network is advertising itself using a .local address. (my truenas server).
Any PC or laptop on my LAN can just use servername.local to get to the truenas ...
- 440
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simple route to 192.168.1.1 always ends up in loopback interface instead of eth0
I'm sshing to a raspberry pi over wlan0 and trying to connect to a modem at the ethernet interface.
Take a look at my table and my ip route get:
lz@raspberrypi:~ $ route
Kernel IP routing table
...
- 101
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14
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I can ssh and access the webserver but ping fails
My knowledge about networking is basic.
I have several computers in a intranet. Let's call one of them the DB_Host.
I want to ping this computer.
So I do
ping DB_Host.intranet.com -c 1
When I do that ...
- 856
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39
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How can I set up an access point on Linux and still be connected to the internet?
I need to use a laptop with Ubuntu 22.04 LTS as an access point, to connect an Ethernet-only device to the Internet, and to be able to ssh into it from the network.
The laptop does not have WiFi ...
-1
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13
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dhcpd.conf prevent ip addresses from being rotated (not static)
in windows dhcp server if i set hte lease time to unlimited or any duration the ip address per mac is always the same .. (dhcp static) i guess
How do i do that in linux? its really anonying if ...
- 119
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Can you forward custom domain traffic to an ip address that is behind a NAT?
I do not know much about this topic so any help would be appreciated. I live in university residences and the internet connection that is provided to us is hosted by Wifinity networks. I run a media ...
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PTK and GTK where are they stored?
So I know for unicast traffic PTK is used to encrypt and obtain ciphertext; and for multicast traffic GTK is used to encrypt and obtain ciphertext. I know PTK is produced at a 4 way handshake, and ...
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Is it possible to have a single IP for a VM in different networks?
I am learning about DNS administration in Linux. And I do it in my office and home. In office my IP range is 10.x.x.x/21 whereas in my home, my IP range is 192.x.x.x/24. Since I am learning DNS by ...
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Linux: How to back up to previous version of Ubuntu
I upgraded to Ubuntu 22.04.2 and lost my network connection. Also sudo quit working so can't easily fix things. So I reinstalled 20.04.6 -- same problems. So I reinstalled 20.04.2, slightly different ...
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61
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What will be the local IP and remote IP while doing port forwarding in airtel Router?
I bought an unmanaged cloud server from the hosting company. My cloud Server IP is 50.21.182.217. It is hosted with Plesk so PORT is 8443. My local IP is 192.168.1.6 and my Router IP is 122.161.240.22....
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1
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31
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Full Network Enumeration without an assigned ip address
I've faced a situation where I connected to a network with an ethernet cable and the DHCP server was disabled, so I didn't get an assigned ip. I was wondering if I can run a scan with kali linux tools ...
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46
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Trying to create a subnet to connect to a network device and I cannot see the IP address in my "route print" list
I'm trying to set up a subnet to connect to a Ubiquiti networking device I need to configure. I can't connect to it. This is on Windows 10.
1 - I've changed my ethernet TCP/IPv4 properties to:
IP: 192....
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0
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20
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ufw forward rule isn't working: connection refused
I'm running a Raspberry Pi and I'm trying to get Pi-hole working. I'm running the container from Podman from a newly created pi-hole user (non root). I published the ports as follows:
- 127.0.0.1:5053:...
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18
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Flushing output on interrupt on the Linux cmdline
On a local terminal, the stty -noflsh option allows to discard buffered
output on Ctrl-C and thus prevents from long scrolling delays if one did
accidentally output large amounts of text to the ...
- 576
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36
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Linux 6.5 netfilter NAT reuses TCP ports in TIME_WAIT status?
In my understanding, Linux (netfilter)'s NAT doesn't reuse TCP ports in TIME_WAIT status, but seemingly Linux >= 6.5 reuses TCP ports in TIME_WAIT, even if the destination is the same.
For example, ...
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Disabling Large Send Offload v2 fixes slow upload speeds [closed]
I have a 1Gig Download and Upload connection with AT&T. I was getting 940-ish Mbps down but only 40-50 Mbps Up on my ethernet connected Windows 11 Machine with a 2.5Gig network card. So I found ...
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1
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27
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Temporary failure in name resolution - pfSense + Ubuntu
I have 2 VMs on Hyper-V:
pfSense
Ubuntu Server 22.04
The pfSense VM is connected to 2 virtual switches - External WAN and Private LAN, which acts as the internal switch for the rest of the VMs.
The ...
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Can my employer track files if I copy files saved in my computer to my local network storage?
Can my employer track files if I copy files saved in my computer to my local network storage.
I'm working at home so I'm using my own local WiFi. I also don't think my computer has VPN on my computer.
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I cant set up two different network categories for two independent network interfaces on windows 11
I have to set two different network categories public and private to two different lan adapters. There are multiple firewall rules that open ports that only shall apply to the LAN.
Whenever I execute ...
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How can I block tiktok mobile app huawei HG8245H5 jpone router. Help me [migrated]
I tried to block it by url but it only blocks it on computer but it doesn't block it on mobile app.
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How to fix unable to load routerlogin.net on Netgear C6300 modem router
Netgear C6300 when on firmware version V2.01.26 , most browsers will fail to load the router login page, its because of this issue mentioned here
The proposed solution it the thread was to use IE, but ...
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Is using a different subnet on a downstream router enough to isolate a network client?
Say I have a network host that's potentially infected with malware capable of reaching out to fellow network hosts (possibly able to crack SMB passwords) and replicate itself to other hosts.
Is this ...
- 549
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1
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The relationship between Tun/Tap and Tcp/Ip stack when Tun/Tap connect to a bridge
I know theres program such like OpenVPN can use tun to interact with Tcp/Ip stack. And I know we can use Tun/Tap with bridge to do things like vm networking.
But I wondering when a Tun/Tap connects to ...
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32
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Enable DNS Windows 10 host for WSL2
By default, WSL2 appears to pick up the Windows Host IP Address as its autoconfigured DNS server.
This can be seen by inspecting the contents of /etc/resolv.conf.
For example
$ cat /etc/resolv.conf
...
- 2,774
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How to secure my home network when using Cloudflare tunnel to a VM in Hyper-V?
I am running a website on Apache server in Ubuntu Server 22.04.
The Ubuntu Server is a guest VM in Hyper-V.
In order to connect to the website from the outside world, I am using Cloudflare Tunnel with ...
- 353
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16
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Microsoft Message Analyzer cannot start Loopback and Unencrypted IPSEC
I regularly use Microsoft Message Analyzer for tasks at work, and it runs smoothly on my virtual machine. However, when attempting to use it on my local machine, specifically to start Loopback and ...
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21
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ping and getent hosts give different result
I have entry in /etc/hosts
1.1.1.1 db_external
When I am doing ping I get it correct
ping db_external
PING db_external (1.1.1.1)
When I am doing
getent hosts db_external
for some reason I got :
::...
- 1,385
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81
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How to prevent Windows 10 IP address conflict for 0.0.0.0?
I sometimes see a message about Windows detecting an IP address conflict. It always seemed to be spurious, but today I noticed that it is associated with losing connectivity for several seconds. So I ...
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Configure properly irqbalance to improve the network traffic
I have a debian 12 machine that gets a lot of softirqs
by calling cat /proc/softirqs
NET_RX on CPU1 is huge compared to CPU0
I would like to assign the irqs on both cores by using the switch on ...
- 213
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89
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After creating an Hyper-V Virtual Ethernet Adapter - the default Ethernet adapter doesn't work
I am not sure if this is by design.
But I created an External Hyper-V Ethernet Adapter, and now I have 2 adapters: The original Ethernet adapter, and the vEthernet.
Edit: This is how I created the ...
- 353
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48
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Make VMware assign a static IP address to your machine
So, I used to be able to do this thing, where my VMs would have a static IP address assigned when i created them. They had access to the internet, and I distinctly remember that it always sets your ...
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How can I make the virtual internal NAT switch work on a Hyper-V VM?
I didn't want to use the Hyper-V default network switch, because the IP address keeps changing, so I read that I need to create a new static internal switch.
I then created a NAT switch using the ...
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Preventing a Tech-Savvy Teenager from Bypassing Parental Controls [closed]
I have a client who wants to restrict their 14-year-old son's access to certain apps and websites, as well as set time limits for internet usage on various devices (laptop, iPhone, iPad, PC). As non-...
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26
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k3s/kubernetes add additional IP to cluster TLS/SSL certificate
I setup a k3s/kubernetes cluster with 3 nodes.
All node have the roles control-plane,etcd,master.
So far so good, and everything works like expected.
For testing/playing around, i installed on all 3 ...
- 351
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17
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Ncat: Connection Refused when connecting on Linux server
I created a java application and ran it with docker inside a linux server XX.XX.XX.XX. That application should listen behind port 105 of that server. In fact, by executing the "netstat -an | grep ...
- 375
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How can i setup a proxy to redirect traffic to VPN
For work i need 2 use 2 differents VPN to access 2 differents networks.
Switching beetween VPN each time I need to one or the other context is very painfull because of double factor auth etc...
I can ...
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21
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IPv6 clients only ask for DHCPv6 addresses on FE80
Why would IPv6 clients only ask for DHCPv6 addresses on FE80:: (link-local unicast)? Autoconfigured addresses are fine (on 2001:4341:360:65::/64 as expected).
Have I screwed up my radvd.conf (below; ...
