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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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If I only have browser-based firewalls, like uMatrix, should I still be setting up other firewalls, like ufw?

I have a bunch of browser-based protection, set up -- uMatrix, uBlock Origin, HTTPS Everywhere, etc. But, should I be setting up other firewalls (like ufw) to only allow traffic on certain ports of my ...
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Shadowsocks causing ERR_SSL_BAD_RECORD_MAC_ALERT on Windows 10

I am a regular Shadowsocks user. Recently when I perform certain actions, all my browsers stop to display the page for me, and the action is not done. For example, while I can browse and comment on ...
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Can't connect to a game server from within my local network BUT others from outside the network can connect

I have a game server hosted on a certain port in Ubuntu, which is port forwarded. Users from other places can successfully connect to that server. However, I can't connect to it from another computer ...
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8 views

router client table drops my hostname after some time

my router recognises my device hostname when I restart the device or the router. It appears on the routers client list. The router uses DHCP. After a while the hostname of my device disappears from ...
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Windows ignores ICMP:Destination Unreachable

There are sites whose firewalls reject forbidden tcp connections with ICMP:Destination Unreachable. If I try to connect from a Linux box, it fails immediately: # this is a real site $ exec 4>/dev/...
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1answer
30 views

Local hostname not working without the trailing dot

I noticed all my local hostnames have a trailing dot at the end when I use some LAN scan tool on my Android phone. And without it, I can't get a ping to work from my Windows desktop (it works fine ...
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1answer
39 views

Losing all of my bandwidth between main and “switch” router

My parents live in a house where one router just can't supply the entire space with wifi. To resolve this, we use a D-Link router that was lying around in "glorified switch" mode. That sounds ...
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16 views

Internet connection slows down on second router - router to router without bridge mode

I recently upgraded my fiber connection from Vodafone to 1Gbit/s down and 200Mbit/s up. Unfortunately, the new ONT gateway with integrated WLAN does not support bridge mode on any of the 4 GE ports ...
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9 views

Setup a home router with PfSense+lxc(+openvswitch?) [on hold]

I am trying to build a router with a machine I have, that contains two NICs (NICi, connected to my ISP router, and NICo, connected a LAN switch). The setup I am trying to get looks like: a) A VM with ...
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Brother MFC-L2700DW does not print from Ubuntu 16.4 LTS

I have a Brother MFC-L2700DW. I am trying to set it up on my Linux Ubuntu 16.4. I have installed the driver, and the printer appears in settings. It is also connected via my wireless router, and I can ...
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How does a modem “know” what to listen to?

I am most likely looking at this in the wrong way, but I hope for clarification. Let's say, for example, my computer sends a request to another computer on a separate LAN and house. So the data would,...
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Some home devices won't connect to the Internet unless the router is restarted

I've been using the CBN CH7466CE router provided by Vodafone for more than 2 years now. The router normally serves 2 phones (iOS and Android), 3 laptops (2x macOS, 1x Windows), and a smart-tv. Since I ...
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Prevent DNSMasq from forwarding host names to external DNS

I have configured DNSMasq to serve as the DNS for my local network. However, I have also connected some of my client machines to a VPN. When trying to resolve hostnames across the VPN, an external DNS ...
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25 views

Cannot access server on Virtual Box from the host?

I am running Ubuntu 18.04.1 in Virtual Box on MacOS. I setup a localhost server in Ubuntu using Python Flask running on http://127.0.0.1:5000/ I am trying to access this localhost from my Mac, but can’...
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Why are speedtest.net results limited to <300 Mbps on Mozilla Firefox but not on Google Chrome?

Speedtest.net results using Google Chrome are consistently 700+ Mbps. No matter what I do I can’t get Mozilla Firefox to go over 300 Mbps. I get the same results with Waterfox and Pale Moon and get ...

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