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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0answers
14 views

Custom network devices naming scheme

I have an ubuntu image to be used on virtual machines. I don't know in advance how many NICs would be used for the machines. I need all network interfaces to get names from a predefined list.For ...
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1answer
23 views

trigger command over network from/to Linux [duplicate]

I have two linux (gentoo) boxes A and B. Both are connected via LAN.A has a camera with motion detection. If motion was detected I can trigger a command on A.I want to send a ? message/packet to B ...
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7 views

Ip payload compression with xfrm

I'm trying to compress ip payload with ip xfrm between 2 computers. Machine 1 has the ip address 192.168.0.1 and computer 2 has 192.168.0.2. I successfully established a IPSec link between the 2 ...
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0answers
13 views

Bypass VPN from VirtualBox

I have a following setup:Windows 7 host machine with AT&T Global Network Connection VPNVirtualbox with Fedora and bridged network connectionTheoretically, as far as I know, such connection ...
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0answers
7 views

VBoxManage natnetwork portforwaring not working as expected

I'm running a headless guest 12.04 Ubuntu from a headless 16.04 Ubuntu host, using VBoxManage. The guest VM is configured with a natnetwork.VBoxManage modifyvm "Ubuntu 12.04 Server" --nic1 ...
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2answers
48 views

How to connect computers to switch?

Me and my teacher came up with a problem that shutting down over 14+ PC's, updating them one by one takes tons of time and annoying to do.We have switches on the second floor, computer class at ...
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1answer
26 views

Self-hosting without access to router

So I'm with an ISP that won't give me access to my router. When I moved into this apartment; I called them to ask what the router's password was to change my wi-fi's SSID & password. They told me ...
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0answers
7 views

Sony Ericsson Xperia Arc S No Mobile Coverage [on hold]

I have a SIM card that previously was in a Sony Xperia S. I recently moved this SIM card to a 2nd hand Sony Ericsson Xperia Arc S.The phone detects no mobile network and thus has no internet ...
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0answers
11 views

unable to start a bind shell with ssl on ncat

Ncat: Version 7.10i tried this with other version as well no luck.this is the cmd i gave to start listener. If I don't start the bind shell then this listener works without any issues and if i don'...
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1answer
15 views

How to specify the DNS server in host command

I want to use linux host command to query all records (A, TXT, etc.) of a domain. I find this possible using -a option as in: host -a google.comHowever, I need to specify my own DNS server by its IP....
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10 views

different subnets on the same interface used by virtual machines in brdiged networking

I have one physical server with one network interface. IP forwarding is enabled and firewall configured properly.My provider has assign me one primary IP address and 4 failover IP addresses form a ...
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1answer
39 views

How can I set up a high speed connection between two Windows computers to transfer large files?

I want to be able to send folders ranging from 10 to 50 GBs from a Windows 10 computer to a Windows 7 computer. Both are connected to the same modem/router with Cat6 cables. I tried using the Windows ...
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0answers
10 views

DNS queries slow with Linux router between client (Windows) and router(fritzbox)

I want to put several network devices into separate networks at home.I have a VLAN-switch and configured several VLANs.Access to the internet goes through a fritz box, which is located on VLAN 50....
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0answers
18 views

failure installing dell inspiron 1564 wireless driver

Opened up the back of the laptop, and there i saw a Broadcom bcm94312hmg wi-fi card.Have tried the specific bcm94312hmg driver (which i hardly found), then tried every driver in Dell site, even the ...
2
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0answers
19 views

How to disconnect and reconnect pppoe in D-link 2750u

I have a D-link 2750u Modem and I want to disconnect/reconnect my PPPOE in order to obtain a new IP adress on demand using Telnet My solution for now is just to remove the ADSL cable, and plug it in ...
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0answers
15 views

Multimedia (DLNA/UPnP) Devices “not connected” but working nonetheless

I got this weird issue in Windows 10 where DLNA Servers hosted on it do NOT show up in "My PC". All I can see is their icons in Network Places, together with LAN PCs.([PC]ZENITH is a Samsung All ...
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0answers
14 views

Windows 10 direct different traffic types to different adapters

I have a wired connection which is heavily metered, I also have a wifi connection which isn't metered (don't ask me why this is).I would like to direct UDP to the wired connection (to take advantage ...
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0answers
14 views

How can I stop Eclipse from continuously attempting to connect to the internet?

I work behind a proxy, that needs authentication using a workplace-provided password. Proxy blocks the password after 3 failed attempts, and I have to request the Network Administration a new password....
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0answers
11 views

How do I find this web service? [on hold]

As a programmer, I've inherited a lot of code from my predecessors in my positions. Usually, either I am introduced to the code and how we are deploying and using it by the person or people I'm going ...
0
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1answer
28 views

Public IP works but with DynDNS I get an ERR_CONNECTION_REFUSED

Recently I ran into a strange problem...I'm using a Raspberry with Raspbian as a public server behind a private router.I wanted to renew the expiring sslforfree.com certificate manually via HTTP. ...
0
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1answer
18 views

Slow Lan connection ONLY between my PC and a MAC

I'm trying to transfer some files over LAN from a Windows 10 PC to a Mac and it's incredibly slow around 2 MB/s.I've tried the following with exactly the same files.Transfer from my PC to another ...
1
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1answer
52 views

Router as AP on existing network

Need help how to convert some old router as AP. The router is Dlink 600 B5E. In my office we have a wired network and WiFi but with very weak singal. I would like to use this old router and connect ...
0
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1answer
28 views

When listening to a port (taskserver) should the local address be `localhost` or `0.0.0.0`?

I've been trying to make a taskd server work on my computer (Arch Linux) for days. The problem I'm facing now is that taskd's config documentation (https://taskwarrior.org/docs/taskserver/...
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1answer
112 views

Someone keeps hacking my wifi router [on hold]

I have WiFi router at my home, and I have set the WPA2-PSK security on it. I set it with a strong password. My neighbour has repeatedly hacked my wifi, and I don't know how he breaks my security ...
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0answers
15 views

Unable to change routing information for broadcast address on macOS

I'm running macOS High Sierra (10.13.4) and trying to make traffic destined for 255.255.255.255/32 subnet go through my VPN interface (utun1).The command I tried to use is:route change 255.255.255....
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1answer
34 views

NAT client and server, and port closing

Let's say I have a client and server. Client is behind NAT and server is public.Client wants to have a session with the server.Let's say client is on 192.168.1.1, NAT on 192.168.1.2 private IP ...
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1answer
34 views

With iptables is it possible to negate multiple IP ranges in a single rule?

I want to log all foreign, not our IP blocks, connections to a port.For a single range the rule looks like:-A INPUT ! -s 10.20.0.0/16 -p tcp -m tcp --dport 8443 -m state --state NEW -j LOG --log-...
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0answers
23 views

In which order should I replace my old ADSL modem/gateway and separate Wi-Fi router with a new 100 Mb modem and Wi-Fi mesh system? [on hold]

To be more specific, …Primary Question:In which order should I replace my old AT&T ARRIS NVG589 ADSL modem/Gateway and separate Netgear R6300 Wi-Fi router with a new Spectrum 100 Mb modem and ...
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0answers
42 views

Internet is working on some laptops and off on the others [on hold]

At the office, the internet is disconnected from some computers, and working on the others. I tried to turn off the router and turn it on, now the people who had internet cannot access it, and the ...
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0answers
46 views

hostname -i command keeps pointing at loopback address

I recently created a new user account on my Raspberry-Pi, gave it root privileges, and deleted the default account in the OS environment. Before this I had no problem making ssh connections, now I ...
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1answer
56 views

Why I can not connect to my local server from windows?

I have the following setup at homeA machine running CentOS7 IP 192.168.15.12A laptop running Windows10 IP 192.168.15.4I have both computers running also with OpenVPN with a tunnel CentOS7 has ...
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26 views

How to correctly setup ipv6 bridge for Docker containers on Synology

I have ipv6 set up on my Asus router (I think it's from Hurricane Electric tunnel broker), and it works from my Synology NAS - I can ping/curl ipv6 address from it. But with docker apps, default ...
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22 views

What if i was to connect to modem directly how package routing will happen

What if i was to connect directly to the modem which is in turn connected directly to my ISP.So i have public ip assign directly, how packet routing or next hop will happen if no router in place?
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0answers
23 views

Am i supposed to see LAN while connected through VPN

I am a mega noob and i need help :)I have client to site AirVPN software installed on my win10 pc1.My setup:Pc1 -> Win10 static ip 192.168.0.2 -> Vpn 10.4.23.xPc2 ->Win10 static ip 192.168.0.3 -...
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18 views

My ISP block all LAN ports in Huawei HG8245 … How can i open them? [on hold]

My Internet service provider block all Ethernet ports in my router how can i solve this problem and open port
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1answer
21 views

Add a second network card in Linux

There are a number of places that suggest adding a couple of lines to /etc/network/interfaces, and restarting the networking daemon sudo /etc/init.d/networking restart. [1] [2]However, this is ...
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17 views

Unbinding application layer through telnet and ssh

So I am trying to unbind an application layer from a certain port in my router, the easiest method I found to do this would be doing it by telnet with the following commands:connection bindlist...
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0answers
14 views

Should each VM get a dedicated tap to a virtual bridge?

I have a networking setup involving three VM's that is working, but I'm not quite sure it is optimal. Put simply - given a virtual bridge defined on the host, should each guest VM access that bridge ...
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1answer
38 views

I cannot visit one specific website on desktop, but on my phone it works. How do I fix this?

When visiting the website em.com.br (sfw) I get an error: "DNS_PROBE_FINISHED_NXDOMAIN"On my phone (which is using the same wifi) everything works.OS: Ubuntu 17.10Browser: FF 59.0.2, Chromium ...
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0answers
24 views

Ping windows machine

Originally I wanted to access the Tomcat Web Server from another machine in the LAN. Since it didn't worked I tried ping command. However, I get timeouts when the Windows firewall is on. My machine is ...
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1answer
54 views

Implications of incorrectly configured subnet mask / gateway

I have recently done an upgrade on a Cisco 2520. As part of the upgrade and SVI was added to the switch to allow a VLAN to route locally which was previously done at another switch (via a trunk). The ...
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0answers
20 views

Port forwarding using upnpc

I want to open a port on my pc to the internet in order to run a server. My router is at 192.168.0.1(1) and when I connect to it via browser, it shows that its WAN IP is 10.1.1.21 and its gateway 10.1....
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3answers
47 views

ip route command with a range, not a CIDR

I have a list of IPs such as these country ones from i-blocklist: https://www.iblocklist.com/lists.php?category=countryThey only provide ranges without a subscription, such as: 201.237.0.0-201.237....
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1answer
32 views

Accessing Shared Folder from Windows Server via Internet

Is there any way to share a folder from my remote Windows Server 2012 and access that folder via the Internet from another Windows and Mac machine?All the machines are not on the same LAN, so I need ...
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2answers
75 views

“Can't connect to this network” troubleshooting

After much research and testing of other answers found on SuperUser and online I cannot resolve:All the devices that I'm connecting to my router areconnecting/working normally, except one PC.These ...
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1answer
51 views

Iptables firewall forward

I am currently working on linux router and i am not able to firewall it the way i would like.Router has three interfaces - WAN, which is Mobile Broadband Private subnet 172.18.15.0/24 which is save ...
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0answers
59 views

Microsoft Remote Desktop only works with public ip

I'm having a weird issue. When I attempt to RDP into my server using it's local ip(192.168.0.30) my RDP client gets stuck on "Negotiating Credentials". If I use my public/internet ip (port 3389 ...
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1answer
39 views

I can only log in telnet server via local machine, can you check my configuration?

I'm using ArchLinux on this machine, using xinetd for config/etc/xinetd.d/telnetflags=REUSEsocket_type=streamwait=...
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0answers
31 views

Modem not connecting to internet

I am having a DLink DSL2750u modem. I'm unable to connect to internet after connecting the ethernet cable to my pc.Without ethernet cable the WiFi works fine and it connects to internet. But after ...
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0answers
43 views

How to plot traffic sent/received on an access point? [closed]

I want to visualize (using a real-time plot) the size of packets sent/received by each device (by MAC address) connected to my access point. Ideally, I want to see both size of packets sent and ...

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