Networking is the art of connecting two or more devices together so that they can communicate with each other.

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Home wifi started misbehaving when I attached a windows device

On my home wifi I normally have a macbook pro, a few iPhones and a chromecast. A few days ago, I bought one of those new cheap windows 8 tablets. It works great, but while it's powered on, the other ...
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3answers
9k views

Can I relay my USB modem connection to my wireless router?

I got a wireless modem that needs to plug into my computer in order for it to work. Is it possible to hook up this computer to my wireless router so that other devices can connect using the same ...
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0answers
6 views

How to use multiple usb modems?

I live in a remote area and the only access to internet is cellular internet with usb modem with speed @ of 5-10 KiloBytes/sec; on avg 7 KB/s. I just can’t bear with that speed. So recently used two ...
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2answers
27 views

Can you explain why I am losing internet connection?

Problem Here is the problem. I live in an apartment together with two of my roommates. Each of us lives in a separate room (see diagram: Mine is Blue, Room1 and Room2 are where my roommates live). ...
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1answer
20 views

What is needed to access a CCTV system (based on a static IP)?

I was wondering (since I'm a beginner or intermediate in computer networks), what do you need to access a CCTV system. Let's suppose we have a CCTV system configured with an username and password on ...
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0answers
3 views

Setup remote profile for Upstore.net on Oboom

I'm using Oboom storage cloud. I'm trying to remote upload a file from Upstore.net to Oboom. When I try remote uploading a file, an error message appears. What I discovered is that in order to have a ...
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3answers
4k views

Is your MAC address revealed when you hit up a website?

When you hit up a site, such as cnn.com, does the TCP/IP packet contain the MAC address of your network card? Could cnn.com theoretically record my MAC address?
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0answers
8 views

What is this misterious entry on my FritzBox router

My router at home is a FritzBox. When I go into the control panel and I look at the devices connected in the local network, and I see something very particular. mercury is the name of my Desktop ...
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0answers
6 views

Can I connect an Analog Telephone Adapter (ATA) analog port to an Analog PBX?

I was wondering if it's possible to reuse my existing analog PBX and all the current line distribution inside my home, but using a VOIP line instead of an analog one. The new configuration should be: ...
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2answers
10k views

How to get IP address of all users on a network on Mac OSX

There is a similar question here, but it doesn’t answer some of my questions. The biggest problem is it says to fill in “MyOtherMac” with the name of the other computer found in the first step. The ...
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1answer
12 views

How do I set up a Synology NAS so it can be accessed by URL/name instead of by IP address

Example On Windows, I open Run with Win+R and enter \\192.168.1.30. The trouble is, every time the NAS reboots, that IP address may change. Question So that's why I'd prefer to access the NAS' ...
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2answers
25 views

Random HTTP connection problems

I'm having a strange internet access problem that I don't know how to debug. A specific set of sites will fail to load with "Connection Reset" status about 90% of the time. Accessing them by their IP ...
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6answers
9k views

Merging two incoming broadband lines for faster internet

We have a broadband line coming into our building which delivers around 8-10mbps, which is ok but not great, although fibre is available in our area (30-100mbps) its not available where we are just ...
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0answers
4 views

RTNETLINK answers: File exists Failed to bring up eth0

I have 3 identical servers which I SSH into, but couldn't on one of them after a restart. service networking restart just bring up "RTNETLINK answers: File exists Failed to bring up eth0" route just ...
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1answer
2k views

No IPv6 with Asus RT-N56U

Consider the following: My ISP have native IPv6. When I plug directly into ethernet port on my motherboard I have IPv6 connectivity, everything is configured automatically, and works fine. But when ...
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2answers
4k views

Can't use local default gateway with Cisco Anyconnection VPN connection

I'm using Cisco Anyconnect as my VPN client on Windows 7. When I connect to VPN, all my traffic is routed through the remote gateway, but I'd like the traffic to route through the local gateway. I've ...
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0answers
11 views

difference in openvpn protocol between android and linux

I recently tried to connect with my custom openvpn server through my company network. I use a rather vanilla ovpn setup for this matter: tcp over port 443 (with comp-lzo) with public key auth. When I ...
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0answers
17 views

Slow network speed on a single computer

I'm having a difficult time diagnosing a network issue on a new laptop I bought. It uses Windows 8.1 while all my other computers use Windows 7. My network is simple and contains the Verizon FiOS ...
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1answer
1k views

How do effective FULL removal of TOR from Ubuntu 12.04

After installing TOR, privoxy & anonproxy on my system, I found out that some functions on my browser had become unavailable and I didn't found the way to solve all the issues there, so I decided ...
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1answer
2k views

Firewall open ports for vSphere

I need to open ports on a firewall, so that a client could access his VM console through vCenter server's Web Client. I had a look at this page about port description, but I am a little confused. I ...
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1answer
17 views

How can I open ports on my Linksys RV082 router?

I bought a Linksys RV082 small business router. It's a nice 8-port wired router with a lot of configuration options, and so far it's working pretty well. One of my computers on the LAN is a server ...
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0answers
19 views

Wireless does not work on laptop

I have been having problems with the wireless network connection on my laptop for a while. (Samsumg Np905S3g) All drivers should be up to date, as well as windos updates. I have tried a clean install ...
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0answers
10 views

Not registering on Asterisk over VPN

I want to work in local area from home, I configured OpenVPN on my Asterisk server (it is only one Linux server in LAN), it works fine. I enabled forwarding on Asterisk server, and client now can ...
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2answers
39 views

IP Address 0.0.0.0 is used or not? [duplicate]

I really wonder if an IP Address with all its bits off can be used or not. Please do answer if you know where its used or it can not be used.
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1answer
7 views

Assign multiple IP to Ubuntu Server

I want to assign additional IP to my Ubuntu 14.02 server. My configuration is like: auto eth0 auto eth0:0 iface eth0 inet static address xxx.xx.xx.xx netmask xxx.xxx.xxx.xxx network ...
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1answer
13 views

Will a NAT router try to talk directly to a device on its subnet or only through its gateway?

I know that this is pretty ambiguous because many factors contribute to how traffic is routed but is it expected behavior that when clients on a NATed network try to send a packet to an address ...
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1answer
2k views

Windows 7 Network dies after sleep mode

I have a windows 7 machine and everytime it comes back from sleep mode the network connection has been lost and needs reconnecting. I have checked the power settings for my network card and it is set ...
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0answers
7 views

Round-Robin Outbound Source IPv6 Iptables

I'm trying to do this: http://linuxbutler.com/tcpip-outbound-round-robin-load-balancing-iptables/ But with IPv6. It doesn't work, however. Seems nat doesn't exist in IPv6. Can you guys help me out ...
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1answer
15 views

Using Cygwin X as a screen/tmux-like fashion

I have the following environment: A laptop running Windows 7 that I connect/disconnect to my work network every day A desktop running Ubuntu 12.04 that's permanently connected to the work network ...
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1answer
15 views

Iptables rules suddenly not working

I'm trying to set up a webserver using an Odroid U3; as OS I have Debian 7.4. The issue came when trying to load the iptables rules with iptables-persistent. I'm using the same file with rules I've ...
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1answer
16 views

Accessing to IP cameras behind TL-MR3020 nano router

What I want to do is connecting several IP cameras to my LAN with wireless router/AP. I have a main USRobotics modem/router/AP (192.168.1.1) and all my computers are connected to that one using ...
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0answers
14 views

How to use “ip link add” on Ubuntu

I am new to Ubuntu network administration. Can someone tell me what the command ip link add does? I tried to google it, and I can't find any useful examples.
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3answers
80k views

What's the difference between RDP vs VNC?

Okay I was playing around with the iPhone Jaadu App and I realized I download the wrong desktop client. So what's really the difference between the RDP and VNC? (because there is Jaadu RDP and Jaadu ...
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1answer
6 views

What keeps ports 32003 and 25419 open on my Ubuntu 14?

I did a netstat on udp ports and found a service on port 32003 and one at 25419. What are they , how can I kill them at startup if they have no use? http://i.imgur.com/fo7atla.png
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1answer
2k views

VLC playing vid over samba stuttering?

This is sort of an open ended question, so any recommendations will be appreciated I have a ubuntu box as my main server and I stream video on my mac since I can't carry my server box upstairs This ...
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0answers
8 views

Wifi related weirdness / dropping connection

I'm having some weird wifi issues at home which I cannot figure out. My problem is that the wifi connection randomly drops and, sometimes, will not reconnect. My home property is an apartment with 3 ...
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3answers
4k views

Why there is only one Default Gateway?

I am novice in networking trying to figure how multiple network interfaces work. My doubt is when there are two or more NIC's on a machine, what is the meaning of default gateway present in the ...
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0answers
17 views

Iptables stops the network after a while

I have 3 dedicated servers (same hardware Supermicro X8STi and same bios) with CeontOS 7 Linux 64Bit and I'm having a problem with one of them, with iptables to be precise. When I change the policy ...
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0answers
6 views

Unwanted routes appear after reboot

I installed Debian Jessie on my laptop. I used the ethernet port. I installed the drivers for wifi, and verified that the wifi worked. I disconnected the ethernet and rebooted the laptop. I indeed had ...
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2answers
2k views

Connect printer from a different network (different ip and gateway)

Currently my network has 2 routers - Router A and Router B. Both router are connected to a modem. Both router has different public ip address and default gateway. Router A | IP-123.123.123.123 | ...
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2answers
3k views

Share guest OS internet connection with host OS with VMware

I have an usb wifi board without drivers for Mac OS X ML. Sometimes I have to connect to internet using the external board and need to pass the Ubuntu internet connection running on VMware Fusion to ...
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2answers
165 views

Yet another routing issue in OpenVPN - Cannot access local machines while on VPN

This is probably going to be quite a lengthy post because I want to make sure I don't forget anything. This is likely a very trivial issue but I can't figure out what's wrong with my setup. Scenario ...
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1answer
11 views

How do I use ssh ProxyCommand to connect to remote MySQL server behind bastion host?

Three machines are involved here. Localhost where I do my development. AKA laptop. Bastion host where you must connect first. AKA jump. MySQL server where I want to connect to. AKA DB. My ssh ...
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0answers
8 views

Random connection timeout

Since some months ago, I notice connection timeouts on my PC (about once a day). Browsers say there is no connection for one minute, then everything get back to normal without doing anything. Note ...
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0answers
7 views

Wired Internet abruptly stopped working Ubuntu 14.04LTS

My Ethernet just stopped working after I might have probably messed up with some of the settings. I have a dual boot windows 8 and Ubuntu. Internet works fine on windows 8, and used for for ubuntu ...
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3answers
2k views

Unable to connect to samba shared folder via windows

im new to linux and Samba. Aim Create a called Shared_folder which can be accessed by ALL users (group name = users). Therefore, in order to map the drive in windows, the user is promoted to enter ...
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0answers
6 views

Why does lldpctl show no neighbors on standalone Ubuntu system?

I have installed sudo apt-get install lldp in two different ubuntu system and in both system I have set (/etc/default/lldp) DAEMON_ARGS="-x -c -s -e -l" I have check in wireshark also transmitted ...
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2answers
2k views

Remote Desktop via Ad-Hoc on Windows 7

Is there a way to connect two PCs running Windows 7 via a wifi ad-hoc network and then use Remote Desktop from one of the PCs to the other? In addition to this the Remote Desktop host PC should still ...
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0answers
9 views

QOS on a Cisco DPC3939?

So with the Xfinity triple play package they issue a Cisco DPC3939 router. Now, I don't know if any of you have any experience with it or not, but suffice to say that it sucks in terms of both ...
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2answers
4k views

How can I solve Windows PPTP VPN issues?

I'm having persistent problems with Windows PPTP VPN connections. The VPN appears up whilst the tunnel won't transfer traffic (ping to a remote IP within the VPN works for a while, and then fails). ...