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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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35 views

Bring multiple computers on same network for license sharing

I have license for a accounting package that allows remote connection from multiple users if they are on same LAN network. This main computer with license is my laptop in my small office. When I work ...
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1answer
27 views

Is there any possible way for my ISP to block specifically WiFi enabled routers?

I've a FTTH connection (I've this intermediate device) , I have both this(1) and this(2) WiFi enabled routers. I mainly use the first one(1). My ISP provided manual setup goes below : IP ADDR : ...
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1answer
28 views

Wi-Fi chip probally died, but did it?

I own 7 years old laptop and it is in very great condition, now let me tell you some story. I use the laptop for gaming and since for gaming the direct connection to internet is the best choice, ofc I ...
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24 views

Two IP's on the same interface + routing

We have the following issue. We need to setup two ip's on the same interface for voip routing. So far we had one and we now need to add another, without any success. VLAN=yes DEVICE=enp1s0 DEFROUTE="...
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1answer
17 views

Creating Email Group in Gmail

I don't know that whether it is the appropriate place to ask this question, so apologies in advances. We have in our organization an email address like "faculty@xyz.edu" so, whenever anyone sends an ...
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5 views

SNMP agent not responding to external connections on ubuntu 16

I'm trying to set up snmp on ubuntu 16, and I can see it is listening on port 161 by using command: $ sudo netstat -nlpu|grep snmp udp 0 0 0.0.0.0:161 0.0.0.0:* ...
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1answer
23 views

Linux use two interfaces with different DHCP server (local <-> internet)

I'm fairly new to Linux networking, so excuse me if this is a trivial question. I'm trying to setup a local network with a (WiFi) router that is connected via an USB-Ethernet adapter. Simultaneously I ...
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1answer
29 views

What kind of weatherproof(?) RJ45 connector is this?

We bought a IP based intercom and the outdoor unit has a ethernet socket that looks like this: I did find a fitting plug/cover here but does this thing have any specific name?
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1answer
15 views

Networking Between Computers on Firewalled Wifi

I've got three devices that I'd like to network together (printer, a mac and a Windows machine). The mac and Windows machine both have WiFi, however they are connected to a network with no local ...
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7 views

Multicast to internet

I have network configuration: Gateway under Ubuntu 12 Has 2 NICs: eth0(mtu: 1500): 192.168.0.0/24 eth1(mtu: 1500): dhcp internet http://example.com i have multicast sources 192.168.0.31(mtu: 1500)...
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1answer
27 views

Guest OS (Windows 10) cannot connect to Internet but all apps (including Edge) can

I have MacOS Catalina (but had same issue under Mojave). I am running Fusion 8.5.10 and Windows 10 Home vision 1803. I use this purely to run Metatrader 4 - which connects perfectly, as does Edge ...
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18 views

Use tc and iptables to simulate latency between multiple datacenters

I'm trying to simulate network latency, drops, etc between multiple datacenters (dc) using tc and iptables. With iptables, I have configured each node to mark which dc a packet to traveling to: Here ...
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10 views

Github Email Changed With Verizon

So the weirdest thing has happened. Somehow I managed to break my local git config and for the last several months my commits have had the email address davidallender@Davids-MBP.verizon.net. When this ...
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1answer
17 views

How to share local PC com port to vps?

I have created an application that use a usb gsm modem. I want to try to run my application in my vps and connect it with the gsm modem in my local PC. My questions is: - How to share local PC com ...
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25 views

Could I mask my IP to be like my mobile data IP?

I don't have static IP, people at home don't have static IPs, in my country.The ISP at work gave my company static IPs for the office, and in order to protect itself against DDOS, he went to mobile ...
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22 views

Resolve DNS in LAN using router/server configuration

I'm trying to setup an internal test server with a domain name so that I can test my application. I have a D-Link WiFi router and a server machine running Ubuntu buster. The Server is connected to ...
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36 views

Route traffic from VPN to Ethernet interface

I have a vpn connection (OpenVPN) to a computer running Windows 7, this computer is connected to the Internet through wifi and it has an ethernet interface configured with a static ip address (192.168....
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18 views

Understanding iperf3 results

want to know, does the bitrate stats in iperf3 for UDP only consider payload data sent per unit time or payload data + length of headers sent per unit time? Sample Stats: -----------------------------...
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1answer
54 views

Setting a static IP address to a guest machine if the host also has a static IP

I have Centos7 VM installed on VirtualBox and it works fine, but when I use the command ip address I get the IP as 192.168.0.X. The host machine (Windows 10) is on 192.168.100.X and I need the guest ...
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1answer
29 views

NSLookup not working (Win10)

I'm currently having problems accessing one of my clients servers and it seems that there is probably a problem with the network connection between myself and the server. However one of the things I'...
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0answers
16 views

net use succeeded but account/password check failed for WNetAddConnection2

I used a small console app in c#, the code was based on gist.github.com/AlanBarber/92db36339a129b94b7dd, to test Windows Networking API WNetAddConnection2 to list files in a specified folder in UNC ...
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15 views

Embeded networking with muliple networks

I'm working on an embedded system running a custom linux distribution. I need it to be connected to GSM, (when available) WiFi and a local ethernet with fixed IP addresses. The GSM is used when the ...
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1answer
25 views

Login as a different user to a local network share in Windows 10 1903

How can I change the user name under which I am currently logged in to my local network share under Windows 10 Pro 1903? Either I am blind or I don't see a corresponding option for that. Scenario: I ...
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1answer
30 views

Allowing cell phone through home firewall

I'm trying to make it so I can allow my cell phones dynamic IP address to be set as allowed on my incoming firewall at home. Does anyone know a good method for this or is VPN and sshing my only ...
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0answers
18 views

iptables on Ubuntu18.04 doesn't filter when changing default-action to DROP

I am facing a issue on a freshly set up Server in the Hetzner-Cloud running Ubuntu 18.04 LTS. After installing Iptables(-persistent) and configuring the following ruleset: root@inetsec:/home/linus# ...
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1answer
20 views

If I have 2 IPs assigned to an interface, how do I release just an specific IP?

I was doing some dhcp tasks for homework, and in one exercise I needed to release the IP on one client, to then in the server with tcpdump capture the packages describing the whole DHCP communication. ...
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13 views

How to connect to docker container port on VLAN from host machine

My home network is set up to assign ip's from 192.168.0.100 - 255. My host computer is on a static ip. On that computer, I run a docker network that assigns containers ip's from 192.168.0.192 - 255, ...
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43 views

Internet goes down when I connect the UDP Streaming into the Switch

Team, When I connect the PC-1 ( within the same LAN) I have internet Drop issue. The IP address of the PC-1 is IP (192.168.86.119) Subnet Mask (255.255.255.0) Multicast UDP (238.1.1.1) ...
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12 views

Cant Port Forward, Missing device Infastructure and Missing the router config page [on hold]

So ive been trying to port forward for like... years now. My dad is still one of those "sketch" people who dont trust you with anything. besides the point, i need to port forward to make one of my ...
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2answers
60 views

OpenVPN LAN Access in Windows 10

I have a simple home network(10.1.1.0/24), where few Windows 10 machines are connected to a wireless router and one of them is running OpenVPN server (Say PC1). Remote clients can ping PC1(10.1.1.8) ...
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1answer
20 views

Can't connect using ssh to Kali Linux

Sorry for my English... I to try to connect my Debian Computer to Kali Linux Computer with SSH, without success ... can connect my Kali Linux to Debian Computer, but not the opposite... I to build ...
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2answers
40 views

Wi-Fi totally gone from Laptop

I have Toshiba Satellite C850 19Q, today I noticed that my laptop does no more have option to connect to wifi, however before everything was fine, now i can only use ethernet, i tried all solutions i ...
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1answer
40 views

Email sending router model and firmware version?

When sending an email is there anything in that process that passes on the details (i.e. model and firmware version) of your router to the mail server or intermediary?
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1answer
56 views

Configuring proxy to use different NIC as outgoing address

I currently have a computer under Ubuntu with 2 Internet connection on 2 different NIC (4G SIM & Cable Connection) 4G Local IP: 172.20.10.2 with gateway 172.20.10.1 Cable connection Local IP: 192....
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19 views

Router ip are different in two but cant access secondary router from the first one [on hold]

i have 2 router with different IP main router IP is 192.168.0.1 and second one is 192.168.2.1 and here is the problem i cant access the second router with main router connected but can access the ...
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1answer
49 views

Can't get into Virtual machine with putty

There are a lot of threads on this...I've been reading them. Here's what I've got, maybe someone can help. I'm trying to build an OpenWRT image and struggling. I've got a virtualbox machine running ...
0
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1answer
52 views

Access Apache2 Hosted Website from Outside of Local Network

I'm running Apache2 on Ubuntu Server in a virtual machine on my host computer. The network attached to setting in Oracle Virtual Box is set to bridged. I can see the test website on my local machine ...
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2answers
177 views

Unable to stream the UDP on the internet

I am using the VLC media player on windows 10. When I used the file and stream using the HTTP on port 9000 it worked perfectly. I have port forwarding setup on the Router for both ports for the IP ...
1
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1answer
55 views

Router model and/or firmware version identifiable in network traffic? [on hold]

I found out recently my IP had been blacklisted and thus I couldn't send any emails. On the CBL site it says... "IMPORTANT: Many CBL/XBL listings are caused by a vulnerability in Mikrotik routers. ...
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0answers
9 views

Whitelist network that can be used to download torrents

I want to make sure that torrents can not be downloaded on any other network except on my home network. Is there a way to block network for certain program, based on current WiFi connection (like ...
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0answers
17 views

Host machine app unable to query guest machine Cassandra database

Environment Host: Ubuntu 18.04 Desktop 64Bit Visual Studio Code + CassandraCSharpDriver Guest: Ubuntu 18.04 Server 64Bit Java and Cassandra installed Single node Replication 1 Consistency 1 ...
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0answers
8 views

AWS api gateway incorrect $context.identity.sourceIp [on hold]

I have like AWS infrastructure: (client) | V Cloudflare | V Cloudfront | V AWS Lambda (through proxy api gateway) Recently i added the cloudwatch access logs. all works fine except that ...
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0answers
20 views

.local avahi zeroconfig mDNS multicast to vpn client OR sharing more than one router on one lan

I have to deal with a Google Wifi mesh router in my network and it has a useless (IMO) interface that I am trying to get around. It doesn't work as a mesh system if it is in bridge mode. I need to ...
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0answers
25 views

Limiting streaming service bandwidth speeds

I'm trying to find a way to limit the bandwidth that Netflix and other streaming services can get. I've looked into qos but haven't found anything that talks about per website. I have found settings ...
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3answers
30 views

Connecting subnets controlled by master net

Recently i tried to make fairly complex (for me) network, i have FFTH and very simple master router which i cannot change (it has ONT) and 3 "slave" routers. My goal is to connect everything like in ...
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0answers
17 views

Block a list of IP addresses in ufw firewall

Is there a way to block outbound connections to a list of IP addresses in ufw firewall? I need to be able to easily remove the blocked IPs from the ufw firewall at a later stage.
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3answers
661 views

network cable - why T-568A and B standard

Why does this standard exist? Why can't I just make the same wires go to the same pins on the RJ45 on each end? Why does the order matter? Inquiring minds want to know! Thanks
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2answers
36 views

Setting up LAN with 2 WANs connected to different routers

I have a network built with 3 Asus RT-AC68U routers: USB LTE modem (192.168.1.1) | router 1, NAT, DHCP (192.168.0.1) | router 2, AP (192.168.0.2) | router 3, AP (192.168.0.3) This setup ...
0
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1answer
41 views

additional IP addresses for bonded network cards

I configured a bond of two network cards, I set an IP address and it works great. Then I configured an additional IP address for each card, and these addresses doesn't work. The problem is that the ...
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0answers
13 views

Debian Virtual Machine can't connect to internet

I'm running a Debian 8 VM, with bridged network connection (checked the "Replicate physical network"). My problem is that, when I'm in the VM, I can ping google.com, but can't use it (like when I open ...