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

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Virtualbox CentOs guest intermittently loses internet connectivity after sleep on Mac Host

I am using centos 6.2 guest on a Mavericks host in VirtualBox 4.2.18. The guest was working fine for maybe a few dozen sleep/wake-up cycles. But then the internet connectivity mysteriously ...
5
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1answer
8k views

How do I view the my network map in windows 8.1?

I've recently discovered an extremely useful feature called Link Layer Topology Discovery in Windows 7 - I click on "See Full Map" in the network and sharing center. And it outputs this lovely, ...
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1answer
11 views

Setting Permission for Files in the network

I need to set permission for a drive on a network where user can edit and update the file but the must not copy the files from the network drive to local system.
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1answer
115 views

How to NAT to different interfaces under linux?

I have an Ubuntu 12.04 server with 4 ethernet interfaces, 2 of which connect to nonconfigurable network devices on eth5 and eth6. Each device can only be reached on 192.168.100.1 via telnet. I believe ...
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2answers
2k views

How to get OpenVPN server to forward tun0 packets to the local network?

I have three machines I am trying to coordinate through a TUN connection. FREEBSD box running OpenVPN server (tun) 10.0.200.21/24 on local subnet 10.0.202.1/24 on VPN REMOTE Public IP 10.0.202.6/24 ...
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1answer
180 views

Copy file with ADS (Alternate Data Streams) via Network loses hidden streams?

Thanking to this answer http://superuser.com/a/704697/200806 I discovered ADS (Alternate Data Streams) and started to play some demo: created a test.txt:hidden file with hidden in ADS content. I can ...
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2answers
647 views

Port forwarding in D-LINK DIR-524 router

I have Tomcat installed and I want to access it via internet. I can access it locally via localhost:8080/appname, but not from internet via http://externalip:8080/appname. I have configured my D-LINK ...
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0answers
58 views

Fedora networking not working correctly but only on one network

I have a very odd networking problem. When using Fedora, I have problem with network only when connected to one specific network (BTW it's ADSL) and no other OS has that problem (I have 2 PCs and both ...
2
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1answer
106 views

how to see all network requests made by an application [duplicate]

Suppose i have an application running abc.exe, how to see all the network requests made by this application? Wireshark is good to see all the requests from the pc, but is there any filter for requests ...
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0answers
74 views

Laptop behind cascaded router can't ping server

My network is set up thusly: DD-WRT is connected via wire to DD-NETGEAR LAN-to-LAN. My problem is the laptop can't talk to the server and vice versa. Both machines can talk to everything else (via ...
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1answer
58 views

Remote network administration, solving 2 device 2 subnet merge

The problem: 1.) No Physical Access 2.) Very basic on site help 3.) Combining 2 subnets on 2 routers Now we know i cant go on site to move cords around so here are the current cord ...
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2answers
194 views

My Mac is not responding for this own IP, but it's ok for everything else

My Mac has the IP 192.168.1.123 and this network settings: IP: 192.168.1.123 Net Mask: 255.255.255.0 Router: 192.168.1.3 DNS: 208.67.222.222, 8.8.8.8 and apache answer correctly if I request ...
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1answer
436 views

Apple Remote Desktop allowing only Screen Sharing over internet

I've set up Remote Management on my iMac, and it works fully on LAN. However, I would like to be able to remotely manage my iMac over the internet. To do this, I've port forwarded the ports needed ...
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0answers
61 views

Some devices kill my network

So I've got a Rostelecom branded Sagemcom F@ST 2804 router and some of my devices just kill my network. For example iPhone 5S does. As soon as iPhone connects to the WiFi shared by the router, the ...
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1answer
113 views

Constantly Losing Internet Connection 2Wire HGV3801

It seems like I will continuously lose my internet connection every 5-15 minutes for about 10-20 seconds. Very annoying. I have AT&T U-Verse coming through the 2Wire HGV3801. The wireless ...
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0answers
350 views

Reliable Connection PPTP VPN to DD-WRT Router

I have set up a PPTP server connection so I can connect to a DD-WRT router remotely. I have set up the connection on my computer by using the "Connect to a Workplace" feature in Windows 8. I was ...
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0answers
139 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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2answers
709 views

Enabling eth0 or eth1 for internal network in computer without internet access

I am installing virtual box in computer without internet access. I am not sure this computer has network adapter (Ethernet) or not. I have two virtual machine which can communicate each other (I ...
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2answers
22k views

ASUS RT-AC66R hard reset

Have an ASUS RT-AC66R - we had set it up for our church and was working flawlessly. I was approached last sunday to say it was not connecting (2014-01-19). We had set it with the 2.5 and 5 Ghz ...
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1answer
136 views

Routing traffic over Vpn without NAT?

I want to tunnel traffic through my vpn but I just realized that my kernel does not have nat enabled ;( iptables -t nat -A POSTROUTING -s 10.20.0.0/24 -o eth0 -j MASQUERADE iptables v1.4.14: can't ...
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1answer
501 views

Wifi problems with Linux Mint and Android

Since I installed Linux Mint 15, every time I connect my laptop on the wifi the internet connection on my Android phone suffers a LOT (very slow). The internet on my laptop works fine. My router is a ...
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3answers
8k views

Static Ip results in no internet connection in CentOS 6.5 (Basic Server)

I am unable to get an internet connection with my static IP setup. Here's my relevant files: /etc/sysconfig/network NETWORKING=yes HOSTNAME=localhost.myserver GATEWAY=192.168.1.1 ...
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1answer
222 views

Is it possible to create a WiFi TCP socket between two computers in a LAN?

Here is our setup. The FEZ Cobra II (WiFi) Single Board Computer with a RS9110-N-11-22-04 WiFi module and running the .NETMF 4.2 The documentation says that: This allows for real "Socket" ...
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0answers
70 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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3answers
508 views

Allow Windows 7 laptop to connect to multiple networks with different configurations using single ethernet port

I use my Windows 7 laptop at work and at home. At work, I connect through the network, and must specify a static IP, gateway, and static DNS servers. At home, I can connect using automatic ...
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1k views

Windows 7 file sharing: Folder mappable by hostname but not by IP address

I am facing a challenge with windows 7 networking. I am a scientist maintaining lab equipment, so apologies for any networking idiocies. I have two Windows 7 machines running in one of our labs. ...
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1answer
213 views

How to turn BTWifi and BTWifi-with-FON off on a BT homehub router / modem

Ive got a BT Homehub 3 router / modem combi, as well as distrubitng my private wpa2 wifi netwrok its also out putting both BTWifi and BTWifi-with-FON public wifi, how can i turn these off ? Ive gone ...
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2answers
42 views

Two 'networks' via one PC

Here is my situation: I have a Windows 7 PC connected to my company domain/network via ethernet card. It uses a 10.200... ip, subnet 255.255.0.0. We use this for internet/email/intranet, shared ...
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0answers
151 views

“iptables -P OUTPUT DROP” blocks DDWRT's web interface

When I do iptables -P OUTPUT DROP it blocks DDWRT's web interface. That is I am not able to access http://192.168.1.1 via Firefox. I put this rules before changing the chain policy to drop: ...
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0answers
116 views

How to configure Open vSwitch bridge to make all ports trunked?

I am trying to configure open vSwitch on a XenServer install to trunk all ports with VLANs. How would I make it so that whenever a new VM is added the port that is connected to it is automatically ...
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1answer
122 views

Does my computer / router / modem have an SPI bus?

We are starting to do embedded programming. The single board computer that I am programming has a WiFi module that can communicate with a Serial Peripheral Interface Bus. That's all good. I know what ...
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0answers
98 views

Connect iPad app to workstation that shares it's internet connection with another

I have the iPad Air with an app "Cubase iC Pro". The idea is this app controls software "Cubase 7.5" installed on a separate workstation. When I first launch this app on my iPad I'm asked for an IP ...
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1answer
22 views

Cannot access apache2 serve

I have machine 1 running Fedora 20 64 KDE running apache2 and openssh server having IP 192.168.0.10 connected via crossover cable (cat 5e) to my machine 2 running Fedora 20 64 cinnamon IP 192.168.0.1 ...
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0answers
29 views

Weird Network Issue…I have no clue what to do next

Last year I had a very weird issue that every few hours I would get huge pings(1700ms+) and my 15mbps connection would to like < than 1 mbps download and like 0.25 Upload. All devices on my network ...
0
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1answer
975 views

Can't access SMCD3G router from Comcast after a password change

We have the SMCD3G router in our office that is a business class router from Comcast. I discovered that it had a very simple password, that no one at Comcast warned us about! To make matters worse, we ...
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0answers
108 views

ARP for a multihomed machine (Linux)

I try to configure two interfaces on my server to behave as independently as possible on the same medium. However I have some problems with ARP (maybe related to ARP flux). I hope somebody can ...
0
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1answer
91 views

Fax server routing via email (Exchange 2007)

I'm trying to set up the fax server role on a Windows server 2008. All is working as expected apart from the "Route through email" incoming routing. I keep getting "Retrying Routing" followed by ...
0
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1answer
86 views

Not able to browse any page connected via a wifi router

I am using a tplink modem tl-wr740n. I configured my wifi router successfully and I am able to connect to it using my mobile. I can use the messenger application on my mobile but I cannot browse ...
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0answers
68 views

Don't Answer Please: Windows 7 64 bit Cygwin Network Drive Mounting

I'm best described as a ferverish fumbler rather than some sort of expert. However, I have been around the block a few times. I've just realised that in my new place of employment, my Windows 7 64 ...
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votes
1answer
74 views

Why does my router try to connect with my computer every 1-2 minutes? [closed]

I have every ingoing connections blocked by default. When I was watching syslog, I noticed that my router (192.168.1.1) tries to connect to my computer every 1-2 minutes (of course it can't connect, ...
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2answers
160 views

Can using UDP and OpenVPN lead to file corruption?

I know with TCP that it always checks your files to ensure nothing got fragmented or lost or destroyed. So if I use UDP for OpenVPN to download files or access an internal network, does that mean I ...
0
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1answer
133 views

vpn with dynamic ddns update ip

I am using openvpn in linux in a router which has openwrt. My problem is that every day ,in order for the vpn to work,I have to change manually my IP from the noip account. I am using an ...
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0answers
94 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 ...
0
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2answers
641 views

Enable Internet (Wi-Fi) and Intranet (Ethernet) to work at the same time

EDIT: OS is Windows 7. I have seen a couple of threads about this, but I am so limited in my networking knowledge that I have been unable to get those solutions to work for me. I am trying to ...
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1answer
70 views

SSH access a remote client through a tunnel

I'm a newbie with everything network related and i want to access a remote client through another server (tunnel), say for example a remote client 11.11.111.111 with username user2 and password2 , ...
0
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1answer
113 views

StarTech USB 3.0 to Gigabit Ethernet ethernet stopped working on ubuntu 13.10 after a recent system update

The device uses ASIX AX88179 internally. I pulled the latest driver from the link above and I still experience more than 50% packet loss for the device.
2
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1answer
299 views

Make Win 7 Homegroup Run Over Wired Connection, not Wireless

I have a Win 7 Homegroup setup between 2 computers. Both computers have wired and wireless connections to the network and the wired connection is considerably faster for Homegroup transfers (about 8x ...
0
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2answers
83 views

Capture packets from other machines in local network

Is it possible to capture packets from other local machines on my Mac? They are primarily all wireless as well, if that makes it any easier.
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1answer
909 views

Router Config IP Rejected

I'm currently using a D-Link DIR-601 router, and up until now, I have had very few problems with it. I've connected to the router control panel before using the IP 192.168.0.1. However, sometimes I ...
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1answer
241 views

username and password retrieval for ZyXEL router?

I don't have the username and password for a ZyXEL Prestige 650H/HW 33 router device which I want to access because I'm moving to another ISP. Is there any solution, other than hardware reset which ...