For questions on connecting devices together so that they can communicate with each other, as well as on networking equipment such as routers and switches.

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279 views

Interface can see ARP packets but can't see the ICMP echo requests

Moring SuperUsers, got my self into a pickle. I have to servers, os-net and vmhost3, connected together via a cross-over cable on their respective 10Gbps interfaces. Both servers are running Ubuntu ...
2
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0answers
425 views

Stuttering/Latencies when LAN/Ethernet Driver active

I experience heavy video/audio stuttering when playing a video or general latencies when downloading a file when connected via LAN/Ethernet NOT when connected via WLAN/Wifi. According to my ...
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0answers
746 views

Connection to router/modem works only if plugged in directly, not via switches/wifi

Consider the following setup: 2-3 Laptops and 4-5 Desktop PCs (both windows and linux systems) are connected to an ADSL modem/router (http://avm.de/produkte/fritzbox/fritzbox-3272/) via wireless and ...
2
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0answers
75 views

Debian 7 vs Ubuntu Server 14.04 for 32-bit VM “network nodes”

I plan to make a number of small VM's (virtualbox) that will serve as networking nodes for various VPS servers, local appliances, private domain servers (AD), and various other web services provided ...
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0answers
65 views

no route to host: Is this associated with SSH or system network configuration?

Problem statement: Not able to ssh from pc1 to any other pc's mentioned below after adding the IP rules tried below System setup: I have a set of 4 machines connected to HUB. Their N/W config: ...
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0answers
174 views

Squid as transparent proxy

I am trying to configure squid as a transparent proxy. Eventually, I want it to use one of 5 different outgoing IP addresses based on the IP address the request was received on. My configuration ...
2
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0answers
57 views

Nullmodem connection performance

I want to transfer 118 MiB data from an old Windows 95 PC to a laptop running Windows 95 and 2000 in dual boot. The computers do not have an Ethernet card and I do not have a second computer where ...
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0answers
30k views

Cannot connect to wifi in windows 8.1 for my new HP laptop

I just bought a new HP laptop 15-d035dx and it has a pre-installed of Windows 8.1 in it. My problem is I cannot connect it to my home's wifi router. All the devices such as ipad, iphone, samsung s3 ...
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241 views

Internet keeps getting Disconnected & Reconnected

I have an Internet connection thru a Phone company which uses DSL modem to connect. For past few weeks my net connection keeps getting disconnected for few seconds & it reconnects automatically. ...
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0answers
208 views

Weird IP in Linux Mint 17

I installed Linux Mint over a shared Ethernet connection from my laptop and installed my Broadcom Drivers over that shared ethernet connection, and I noticed that my Linux box is on the wrong gateway. ...
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0answers
10k views

Password Recovery from Router without Reset

Background Story: Previous Technician for a small business set up a network for a customer. The Technician went AWOL (The small business owner is a close friend, and I knew the previous technician as ...
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0answers
832 views

Why is avahi-daemon excessively spamming my log files?

My VPS provider recently suspended my account for "participating in a DoS attack". Since I've naturally done no such thing, I can only assume it was a security breach, and am now investigating what ...
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1k views

Lenovo hardware test “local connection test” failed for Intel Centrino Advanced-N 6205

My Lenovo ThinkPad T430s occasionally has WiFi connectivity problems where it will work for a few minutes, and then connections will fail even though it is still connected to the AP with a strong ...
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0answers
110 views

Windows XP network issue - Looking for wrong Workgroup

Say my workgroup name is "MyGroup". Every time I pull up Windows Explorer, go to My Network Places and then Computers Near Me, I keep getting a message that says, "MyGroup2 is not accessible..." I ...
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0answers
1k views

SSH reverse proxy

I am setting up a Gitlab server (https://about.gitlab.com/) inside a virtual machine using KVM on a Ubuntu 14.04 host. My university charges us for every external IP address, so I cannot use bridged ...
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0answers
140 views

Fetch from NPM registry always fails

On my Windows server 2012 machine I am unable to install/update npm packages. It was working allright, but stopped one day. I tried everything and I am seriously thinking about reinstalling the system....
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0answers
202 views

Creating hosted network with netsh when having to select the adapter

I'm on Win7. I usually create a hosted network by creating then executing a process that runs netsh wlan hostednetwork mode=allow ssid=MYSSID key=MYPASSWORD keyusage=temporary. So far, no problem. ...
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0answers
2k views

How to create a private wireless network off of public wifi?

My question is somewhat similar to this one, but that was never answered. Mine is different enough that I believe it warrants a new question. I am an organizer for an event coming up and we have some ...
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0answers
274 views

Pidgin auto-reconnect

Using Pidgin 2.10.6 (libpurple 2.10.6) 4cfe697ea3ae39a4fb3dad8e3ed1c70855901095 On Ubuntu 12.10 (yes I know this is out of support) From time to time Pidgin will disconnect from a network. This ...
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0answers
18 views

Unable to browse to certain sites

I have a few guests on a XenServer host, and some sites ( both SSL and non SSL ) cannot be accessed by the XenHost and the Guests. Other machines on the same network can access these sites just fine, ...
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0answers
663 views

Windows 7: Disable automatic updates & antivirus updates on certain Wifi connection

TL;DR how do I disable automatic background updates when connected to certain WiFi network? Most of the time I'm connected to my home WiFi, so I have both Windows 7 and Avira Antivirus updates ...
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0answers
2k views

Cannot create virtual switch Hyper-V (0x80070002)

I get following error while creating any type(external, internal and private) of virtual switch on Hyper-V using Hyper-V manager. Failed to create virtual ethernet switch. The system cannot ...
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0answers
603 views

using NFS over unreliable networks (wifi/mobile)

I have a NFS server at home (and an openvpn connection that only works outside of home). My phone (Jolla) is basically Linux, and has mobile data/wifi/usb network capability. Basically, I want to ...
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0answers
481 views

File transfer tools for linux with support of zero-copy transfer

Are there small and simple file transfer tools for Linux, which can use "zero-copy" style of transferring files from HDD (SSD) to tcp socket, and back? I want to often send huge amount of ...
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0answers
2k views

ADSL connection drops - D-Link 2750U

So lately I've been having major issues with my ISP about my connection. My D-Link 2750U router reports the following attenuation: +------------------+------------+-----------+ | Attenuation (dB) | ...
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526 views

Windows 7 File Transfer Speed Over Gigabit is Exceeding Expected Limits(!?)

I have two PCs and a network switch, all gigabit hardware. I transferred this ISO file between them and noticed the Windows copy dialog reporting faster rates than I expected: 181 MB/s ? How could ...
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0answers
2k views

Trouble setting up more than 4 network adapters in VirtualBox (XP Guest)

I've been trying to setup the 8 network adapters that VirtualBox is supposed to support, through the command line. I need them as bridged networks (because I use them to forward ports from a server ...
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0answers
222 views

OpenVPN client can't reach a box on server's LAN

I can't seem to figure this out. The server runs on a VPS with private networking. I need to reach another VPS on the same datacenter from the client via the OpenVPN server. The server's LAN IP is 10....
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0answers
987 views

Bridging my VM with an OpenVPN adapter

Beginner user here,I start to slowly learn about networks, virtual machines and so. Here is my set up. I have a host system, running Windows 8.1. On my host system is installed OpenVPN, with a ...
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0answers
162 views

IP forwarding on windows 7

I want to redirect incoming traffic with a specific IP destination address coming to my computer to proxy server working on this PC (C# app). I tried to accomplish it by using netsh interface ...
2
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0answers
220 views

is robocopy over a network share secure against eavesdropping?

IMHO using robocopy for copying files to a remote windows network share should use the encrypted channel provided by windows file sharing ove a network. Can anyone confirm? Thank you.
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0answers
19k views

Windows 8 laptop does not show WiFi

I have a Windows 8.1 machine that previously connected to a wireless modem but it does not now. The modem is not a problem because I can see it and connect to it from other computers. On the ...
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0answers
46 views

Can't access virtual machine after plugging ethernet cable

I have VirtualBox installed. My OS is Ubuntu 13.10. I configured a host only network at 192.168.56.1. I have 2 machines the first 192.168.56.20 the other 192.168.56.21. Everything worked fine before ...
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0answers
5k views

Ubuntu network keeps giving Network Disconnected - You are now offline message

On the face of it, you will find that this is a common question but please read it completely to understand the specific issue that I have. I am running Ubuntu 12.04.4. I keep getting this network ...
2
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0answers
84 views

Internet stops working when using Microsoft Network Monitor

I need to sniff some http request that a software is making, so I've downloaded Microsoft Network Monitor which I have used in the past on other computers without any problems. So I run the network ...
2
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0answers
1k views

NT_STATUS_IO_TIMEOUT error while sending a file to Samba server

Today I installed OpenELEC which came with Samba server by default. When I try to send a file using smbclient on linux I get it sending for a moment, but then it stops and I get error cli_push ...
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0answers
277 views

How to prevent Outlook from sending header with IP address and hostname

Right now Outlook 2013 is sending each message with a header containing hostname, internal IP and external IP. How can this be stopped? This must take place on a local level because the computer is ...
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0answers
282 views

ssh to linux through ethernet bridge to windows

I have the following setup Wifi / \ / \ Fedora Desktop Windows 7 Desktop (10.0.1.16) (10.0.1.15) \ ...
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0answers
178 views

Loopback Address on OS-X

Wikipedia has this to say about the loopback address Various IETF standards reserve the IPv4 address block 127/8 (from which 127.0.0.1 is most commonly used), the IPv6 address ::1, and the name ...
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0answers
257 views

How to tell Windows 8 to only connect to network drives on certain networks?

I have a home server with some files on that I connect to via my wireless LAN at home. The server is only available at that specific network, and not via internet. It seems that every time I open an ...
2
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0answers
128 views

Unable to connect from Unreal IRC Server to Anope IRC Services

I am having some issues getting the link to establish from Unreal IRC Server to Anope IRC Services. I am currently receiving the following error: *** Notice -- No response from services.xxxx.com(...
2
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0answers
804 views

Internet Connection Sharing (ICS) hangs

I am sharing my Wifi internet by creating a virtual network through the following commands netsh wlan set hostednetwork mode=allow ssid=MyWifi key=XXXXXXX netsh wlan start hostednetwork It works ...
2
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0answers
292 views

Set port for DNS on OS X

I'm using OS X 10.9.1 and I want my DNS lookups to happen on port 54 instead of 53. First I looked here but the file states: This file is not used by the host name and address resolution or the DNS ...
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0answers
97 views

On a wireless network, is there a way to redirect webpages to a local page

On a wireless network, I would like all traffic to a specific website to be re-directed to a page on a local server. I would like Query Strings to be left intact. i.e. www.myvenue.com?memberId=1234 ...
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0answers
142 views

Wifi Neighbor Triangulation

Is it possible to discover signal strength between two devices that are connected to the same network? Devices    A. Cell Phone WiFi    B. WiFi enabled device  &...
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0answers
4k views

CHECK_NRPE: Socket timeout after 10 seconds, when trying to read Windows Server 2008

When invoking the check_nrpe via terminal, like so: /usr/lib/nagios/plugins/check_nrpe -H winserver -c alias_cpu I get the error below: CHECK_NRPE: Socket timeout after 10 seconds. (Also ...
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0answers
445 views

Cannot connect to local ip address OSX (Mavericks)

Here is the situation: I can ping and connect to localhost / 127.0.0.1 I can resolve hostname (dig / nslookup) I can ping my ip local ip address (10.63.66.185) and hostname from another machine I ...
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0answers
163 views

Stream from Windows Media Player to linux

I'm trying to setup my Pi running Debian Wheezy to play music coming from any computer on the network using the Play to feature of the Windows Media player. The Pi is running headless, so a terminal ...
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0answers
538 views

Ethernet not working after PC start in Windows 8.1

Recently I installed Windows 8.1 x64 on my PC. Then I enabled Hyper-V in Windows and created a new external virtual switch. I have the latest LAN driver installed (my ethernet controller is Intel ...
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0answers
954 views

How does Windows determine which network status icon to show?

I installed Bluesoleil to experiment with an old Bluetooth adapter, and then I uninstalled it. After it was uninstalled, the systray icon for network status always shows a red X. However, I'm ...