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.

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12 views

Chromebook Wifi suddenly cuts out; reconnects. Wifi running normally

My Chromebook is notorious for occasionally falling out of the use of the Wifi, not allowing me to continue working. The other devices that I have are able to stay connected, but not my Chromebook. ...
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7 views

netbiosd sending high amount of packets?

I am running on a Mac OS Big Sur and while looking at the Activity monitor/Network - I found out that my netbiosd was sending up to 2600 packets (160 KB) and receiving a 1400 packets... I tried to ...
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1answer
14 views

Homelab networking adding a new router and VLAN for segregation

I hope you and your loved ones are safe and healthy. I am a self-funded student in last year of college. I need to create network for my final year research. I am want to integrate a Cisco Integrated ...
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13 views

ERR_NAME_NOT_RESOVLED on select websites

Since yesterday I've often been unable to open websites like Google, Github and Spotify, but most other websites seem to work fine. I've flushed the dns cache many times already, used different DNS ...
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2answers
22 views

Connect/bridge two networks?

👋🏼 Summary I have two networks, that I wan't to connect to each other, so I can connect from one machine on one network to another machine on another network. How things are At my office, I have a ...
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7 views

wireshark in promiscous mode and firewall

My question is related to this one : Wireshark does not capture Packets dropped by Firewall but that thread doesn't answer my query. Say I have wireshark running in promiscous mode and my ethernet ...
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24 views

SSH not asking password prompt and stuck after Local Version string

problem connecting to a host via shh which was working before but stopped working suddenly. ssh -v root@xx.xxx.xx.xxx OpenSSH_8.2p1 Ubuntu-4ubuntu0.2, OpenSSL 1.1.1f 31 Mar 2020 debug1: Reading ...
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1answer
28 views

Unable to access LAN devices

A bit a of a newbie to anything network related so bear with me here. I'm having trouble having a reliable SSH connection to my Raspberry Pi servers on my local network. Say I am running a minecraft ...
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1answer
26 views

Scp does not copy data from windows to linux

I am connected to windows machine via a VPN network. I installed openssh server on windows machine. From Ubuntu machine, I can connect using: ssh windowsmachine@ipaddress However: scp windowsmachine@...
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26 views

The remote computer requires Network Level Authentication, which your computer does not support [duplicate]

I use Windows 10 x64 to connect to Windows Server 2012. Using Remote Desktop (mstsc) is OK connected Using "Terminals" https://github.com/Terminals-Origin/Terminals for connect using RDP ...
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30 views

My Win10 machines can't ping Rapsberry

I have a problem only relative to my Windows 10 machine. I can't reach my Raspberry PI3, although I can see this device from any LAN monitoring tool. Win 10: 192.168.1.2 Gateway Router: 192.168.1.1 ...
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1answer
47 views

How do government firewalls sit between me, the internet service provider and the wider internet?

I am perplexed on how are government firewalls set up between me, an Internet service provider and the Internet servers. How do they ban or some websites or slow down their speeds? When I am connected ...
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33 views

I cannot access my College servers at College

I am trying to connect to my College Servers to do work and it just won't connect whatsoever. The College website won't load properly and when I try to access CANVAS from the college website it fails ...
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10 views

Cannot add iptables firewall rules properly to Docker container

I want to create a firewall to Docker container that allows only some IPs and rejects others. The default setting was like this: $ sudo iptables --list Chain DOCKER-USER (1 references) target prot ...
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19 views

Protect IP webcam's RTSP port 554 with firewall?

I have a IP web camera and I'm opening the port to the internet through the WIFI router. It's useful that I can check the live streaming outdoors on phones or laptops. But there's one thing I'm ...
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41 views

Cannot Ping or Connect to a device on the same wifi frequency band

I am trying to ping or connect to a device, however, it is not possible when both devices are on the same frequency band, 5GHz or 2.4GHz. When I connect the device to different frequency, one on 5GHz ...
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1answer
36 views

Cannot use my wifi card on windows 7, but I can on debian GNU/Linux & windows xp

As the title says, I can't use my wireless us robotics card on my laptop. The device managers says "This device cannot find free resources that it can use, code 12". Here's a image from ...
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1answer
41 views

How to extend the range of an omnidirectional WiFi router in one direction?

I would like to extend the range of an omnidirectional WiFi router (e.g. this one) in one direction. Is it possible to connect a 2.4 GHz directional antenna (e.g. this one) to the router, by ...
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17 views

How to set up a local proxy on my windows pc to reroute(and maybe edit before sending it) data from my Instagram account

There was an account on Instagram called PGTALAL, he'd edited his stories in such a way that when opened on Android or IOS through the app it'd make the device crash, now I want to replicate this ...
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1answer
10 views

Unreachable domain in AWS Route 53

I currently am having problems setting up a domain that i transferred to aws with route 53. Basically the architecture is pretty straight forward and the same procedure (as far as I can tell) worked ...
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1answer
42 views

CAT6A or CAT7 Bulk Patch Cable

Is there a reason that no-one offers stranded CAT6A or CAT7 bulk cables to be used to crimp custom length patch cables? I haven't found a single supplier that offers this. Solid conductor cables are ...
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0answers
28 views

DISM unable to capture a dir located on network disk

I am trying to capture an image with DISM, where the /capturedir path is located on a NAS mapped to Z: via net use in the same elevated command prompt that is running DISM (Z: works fine with any ...
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12 views

RSTP protocole device placement [closed]

I have a custom ethernet switch they support RSTP procole, I have number of 40 ethernet swtich. How can I placement to Root Bridge to get high performance in my system ? Edit: My system connected with ...
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1answer
36 views

Remote connections speed limited to about 1.5 MB / s

I've been struggling in my company setup with a strange problem. After diagnosis, the problem seems to be caused by Windows 10. My setup Windows 10 Pro machine serving as a file repository for ...
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21 views

Not connecting to Internet in windows 10 1909

Recently I have uninstalled my outdated escan antivirus after that I can't connect to internet. Wifi is connecting and showing internet access but my laptop is not getting the internet not by any ...
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14 views

filtering adult content using OpenDNS not working while using free VPN psiphon

I'm trying to filter adult content using OpenDNS. this works fine normally, but after connecting to a free VPN like Psiphon which uses L2TP, the openDNS stops working. I'm trying to use these DNS: 208....
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1answer
29 views

My ISP (in Suriname) does not provide a public IP address; how can I host a website on my Mac mini?

I'm running a Filemaker Pro application on my Mac mini. Filemaker uses Web Direct to generate a web UI for me - I don't have to do anything about that, and I don't even know how I should do that ...
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1answer
46 views

Wireshark shows device on my network sending me TCP packets

I downloaded Wireshark to understand better TCP handshake and found something I thought was interesting. It's showing packets from 192.168.100.4 (that's my private IP) and 192.168.100.8 (don't know ...
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2answers
41 views

How to connect to one's local machine when on the remote for use with sftp

I'm working on a remote server and using PuTTy. I'd like to use sftp to transfer files to my local machine. I need to connect to the local machine in the remote prompt, but how do I find the ...
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1answer
25 views

arch install network configuration: dhcpcd no ipv6 routers available

I am new to arch and networking. After reading the doc and many posts, I am still unable to solve my problem. I am running arch on virtualbox. The host machine uses a wireless connection. I installed ...
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17 views

Cannot resolve domain name from inside my network

So I have a web server running on a computer in my local network, port 5000. It works great from everywhere except within my network, for some reason it can't seem to figure it out. Whats annoying, is ...
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14 views

HTTPS traffic failing on 4G Router

Previous post: HTTP/HTTPS traffic failing except when on mobile My issue is that I am only able to access https://healthcheck-r-failover.cododigital.co.uk on my mobile phone. BrowserStack, my own PC ...
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22 views

WSL2 network unreachable for any distro

A couple of weeks ago, WSL suddenly could not reach any IP addresses nor resolve any domains. Even internal network IPs are not reachable. >lsb_release -a Distributor ID: Ubuntu Description: ...
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39 views

Why does the router block containers connection in docker?

I have a problem with a docker environment: I was able to clone it and build it, but once I ran docker-compose up, one of the services (let's call it A) couldn't start because it couldn't reach its ...
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1answer
12 views

LAN clients get no IPv6 after OpenWrt upgrade to 21.02.0-rc1

As the title says my home router's LAN clients, both on cable, and on wireless, don't get any IPv6 address from the router. Formerly, it functioned without problems. Here's my current IPv6 server ...
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1answer
8 views

Wireshark in windows 10 not showing “80211” header for Link Layer Header column

I am trying to capture Wi-Fi frames and check few parameters of 802.11. For that, I was trying to set the Link Layer Header of Capture Options in the wire shark. The drop down of the Interface WiFi is ...
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1answer
12 views

How to make shared folders of different computers in a LAN available across two different networks, when only one PC has access to two networks?

I have a private network, in which only one of the computers connects to a public network (my workplace). The structure is, more or less: A <--- public(work) network ----> B <-----private ...
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12 views

Remote Management on Optus Router

I have an Optus router that uses a "Sagemcom" advanced menu, that I have set up port forwarding on. It all works, except for the fact that when I put in my public IP, I get my router config ...
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19 views

Nearby wi-fi channels - What is the level of interference? [duplicate]

Speaking of 2.4ghz networks, if my neighbor chooses channel 3, at 20mhz I know that this will also interfere with channels 1, 2, 4 and 5. What I would like to know is what is the level of interference?...
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1answer
47 views

Is it possible for each layer to give incomplete data to the lower layer?

In network-based models such as OSI or TCP / IP, is it possible for data in each layer to be delivered incompletely to the lower layer? For example, might layer 3 send data to the second layer without ...
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1answer
3k views

Can someone explain a tracert to my own public IP?

I'm trying to learn about ip routing and I'm am trying to trace route my own public IP. I just searched my ip online and tried it. the results I got were > tracert [my_public_ip] 1 <1ms 192....
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1answer
34 views

VoIP and computer on separate VLANs through one cable

In my network I have VoIP (VLAN-ID 30) phones and desktop (VLAN-ID 20) computers on separate VLANs. I would like to run a single cable to my desk from the switch that first connects to my VoIP phone, ...
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0answers
16 views

Resources to learn about Linux network interfaces [closed]

I was playing around with ip link show command and saw that docker had setup a bridge interface and a veth interface. I want to learn about how these various interfaces, including bond is used in ...
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1answer
23 views

Slow Wi-Fi connection via AP, but same wired connection is Fast

I have 500mbps internet connection from Spectrum. Their modem goes to a wireless router which has 4 ethernet output ports. From those I go to an unmanaged switch, where I connect to my pc and get the ...
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1answer
40 views

When is mapping between the IP and MAC address of the destination computer required?

I saw somewhere that: computer A in the process of pinging computer C should map its MAC address to its IP address because Ethernet is used in this scenario and packet needs to be encapsulated and ...
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2answers
71 views
+50

How do I properly configure my Load Balancing Router?

Setup Description I have a TP-Link TL-R470T+ Load Balancing router setup at my home. Here is a link to the entire setup along with the routers connected etc. As can be seen from the diagram, I have ...
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1answer
50 views

Simple Network at Church

We are updating out streaming system at church adding a second computer for streaming only and a new PTZ camera that can send video over Lan. Only problem, we don't have a Lan. I only want to connect ...
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1answer
12 views

How to shutdown vm from vnet gracefully?

I use VMware Workstation Pro with one DC vm and three ordinary vms. All vms are located in the one domain and in the one virtual network. Virtual adapters are used in order to connect vm into vnet. My ...
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1answer
27 views

Internet Connection Sharing not working on Windows10

I cannot share the internet connection between two PCs using ICS. Here is my setup: PC 1 is the ICS host. It has internet acces through Wifi. Both PC are connected to a switch by Ethernet cables. The ...
2
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1answer
42 views

/dev/tcp/hostname/80: as an interactive session?

Does anyone know how to obtain an interactive session with the device /dev/tcp/hostname/80? I opened using cat <> /dev/tcp/www.google.com/80 and tried typing in 'GET / HTTP/1.0\nHost: www.google....

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