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

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3 views

IIS URL-rewrite doesn't work

I have an IIS setup with redirect rules that work perfectly fine on my Windows machine. However - I'm starting to use Mac - so I installed a VirtualBox VM with windows on it and used the exact same ...
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1answer
8 views

Connecting bluetooth headset kills wifi internet on laptop PC

I just bought Genius HS-920BT BT headset. I've paired it to my PC on Windows 7. However, when I turned on the "Forward Voip calls to Handsfree" service, in order to use it as my Skype communications ...
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0answers
16 views

Tool to group a list of IP addresses into IP ranges

I look after a website that is currently being flooded with HTTP requests from different IP addresses but all using the same user agent string I've grepped the log file and now have a file with all ...
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1answer
14 views

Win 7 - “unidentified network” / “virtualbox-host-only network”

I somewhat strangely cannot connect my computer (Win7) to the internet anymore because it is "currently connected" to an "unidentified network". Network Center says I'm on the "VirtualBox Host-Only ...
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0answers
10 views

Additional logon information required

I am connecting to a wireless network in a company and as the title says, I am getting the message that I have to log in to the network. To do that I usually just open a random webpage and I am ...
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1answer
29 views

What does the output of 'ss -s' mean?

I have a problem understanding the output of the Linux ss (socket statistics) command. I can not understand the meaning of the output of ss -s For example: [root@dls2304-1 ~]# ss -s Total: 973 ...
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1answer
15 views

replacement for Net Send

Is there any replacement for Net Send, I believe it was called, we can implement for our 60+ computers at work? We would like the ability to : 1) send messages to all logged on users and 2) send ...
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1answer
7 views

MaraDNS- Unable to forward DNS queries

I tried forwarding DNS queries to Google DNS but it is not working. Below is the content of my /etc/mararc file: csv2 = {} csv2["example.net."] = "db.example.net" csv2["google.com."] = ...
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1answer
20 views

How to use UDP hole punching for a SSH tunnel / session

I want to deploy a Raspberry Pi in my weekend cottage. The Raspberry Pi is there to log the temperatures and send them to a remote server which has a fixed ip, saves the data and displays it on a ...
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1answer
38 views

how does ping -W work

I want to try to use ping to detect if a server goes down. So the idea was to have something ping forever, and then if ping ever timed out( -W flag) it would return and I'd be able to detect it. But ...
2
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0answers
16 views

How to make server power settings apply even when computer is activated by WOL

I have a computer with 9 hdds as a storage server in the next room for me and my family (movies and such) connected to the router. The computer is without keyboard and monitor, all works fine, but in ...
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0answers
12 views

Dns server for specific domain

Is there a way to define a dns server for a specific domain? I'm setting up a develop machine with an amp stack and i want to redirect all urls with a specific domain (i.e. project.dev) to 127.0.0.1. ...
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25 views

Get Windows 7 to ipconfig renew automatically when an invalid IP configuration is ever detected

My new computer has a problem that causes its IP address to randomly become invalid. This problem is widely reported and no one ever fixes it. Is there any way to set up Windows 7 to aggressively ...
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2answers
29 views

How do routers avoid port clashes when DMZ and NAT are used?

NAT in consumer routers makes the router translate a request from an internal device on a private IP (say dev0) and a specific source port X to a request from it's own public IP at a different source ...
2
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1answer
43 views

Network Security - Potential issue

I have to send a program over to China which accesses a server inside our network. This program updates SQL records and stores large amounts of data on the status of products beings tested, on this ...
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1answer
14 views

ISDN: Usb Modem Windows XP

So I have a D-LINK Windows XP ISDN Modem which I have to use to contact our telephone service in the building. I'd love it to run under Windows 7 or 8 but it doesn't. However the USB-modem is ...
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0answers
6 views

Execute remote commands as admin (vmrun)

I am using vmrun.exe to execute commands from a master to my virtual machines. For instance, I would like to be able to change the IP address of my virtual machines (netsh.exe should be launched as ...
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0answers
13 views

ACL inter-vlan routing

I need to configure access control list on layer 3 switches for a some school's: Now the PC's from one classroom can access the PC's from the other classroom. How can I configure that they only can ...
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1answer
26 views

Using Windows FTP client behind strict firewall

There is a software that depends on Windows ftp.exe to transfer files. Problem is, the computer that runs it is behind a very strict firewall, it does not work with Active FTP. Windows FTP only works ...
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1answer
28 views

Send packet (frame) with different 'Sender's MAC'?

I was just studying the Network+ book where it explains the contents of a Frame using blocks to represent a set of bits. Moving onward, it states that the first 'block' is the Recipient's MAC address. ...
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1answer
18 views

How to set Linux network namespaces as a non-root user?

I set up a network namespace for a VPN so that not all the traffic goes over the VPN. It works fine when I type: sudo ip netns exec vpn firefox All the Firefox traffic is now going through the VPN ...
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0answers
12 views

Does ssh client integrate with other systems?

I have MacBook Pro running OSX Yosemite, when I enable the ssh from (Preferences - > Sharing) it gives me link like this : members-12-13.hallsnetwork.xxxx.com Well, clearly the link is descriptive ...
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0answers
23 views

My router Belkin F5D7234-4 v5 blocking a certain website

In short: suddenly I couldn't access a certain website I was working on - it times out, the traceroute makes a few hops and then stops. It worked normally, and just started timing out one morning. If ...
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1answer
12 views

Cannot access DNS from external network

I have setup a MaraDNS instance on CentOS 6.5. I can access the DNS records from local machine—on which MaraDNS is installed—by doing nslookup but cannot access the DNS server records from Internet on ...
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0answers
18 views

HP Switches in a ring

Im struggling to find an answer to limitations of spanning tree in a ring network. We have a network covering a large area that is in a ring format, Each node is fibre in and out and possibly one ...
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0answers
8 views

How to connect remotely from Windows to a Vagrant instance?

Is there a way to connect from my windows pc to a vagrant instance running on my mac which is on the same network? Ideally I would like to use cygwin or something equivalent
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25 views

Are crossover ethernet cables not working anymore on modern ethernet cards?

I made a crossover cable to connect two computers. The connections are correct, and I verified the cable both visually and with a tester. However, no matter what I tried, I could not make it to work. ...
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2answers
17 views

Make local Virtual Box server available to other computers on the wider host OS LAN

I’m running VirtualBox on Windows 7, the guest virtual machine OS is Ubuntu Server and it’s set up in such a way that I can access it from the host machine on 192.168.56.101. The host machine IP in ...
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0answers
19 views

2012 Domain Controller DNS issues

I have built a 2012 domain controller and after i install the unit no one can get on the internet. The way I set it up is I was going to let the router continue to run the DHCP process and have the ...
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0answers
14 views

Traffic - Active Directory vs Remote Desktop Protocol [on hold]

I am sorry to ask this really basic question... What is causing more network traffic per client? A Windows Remote Desktop connection session or a Windows Active Directory Service session? What is ...
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1answer
15 views

IPv6 only works incoming and localy on FreeBSD 8.4

I am running FreeBSD 8.4 and have trouble with IPv6. I can connect to my server from outside, connect locally to my jails. But from the server I cannot connect to the outside world. When I ping6 to ...
0
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1answer
30 views

User posting from Google proxy IP? [on hold]

Background: A small forum that I run has had to ban quite a few persistent trolls and other annoying users over the years. Using a proxy is against the stated forum rules for this reason. We have ...
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2answers
22 views

Using multiple ethernet switches to connect shorter ethernet cable runs with a mix of cat5e and cat6

Ive got multiple shorter runs of ethernet cables a mixture of cat5e and cat6. I need to get a cable from the router to another area, there is no direct concealed cable but there are multiple shorter ...
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0answers
11 views

Wifi extender vs bridge? differences and best practices?

I have two routers of the same model ASUS rt-ac68u. They both can be configured as bridge and as wifi repetitors. I don't really get the difference between a bridge and wifi extender and I was ...
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0answers
9 views

SSH Tunnel from inside SSH Server

I have a server that i want to be accessible through AFP/FTP/Other over the internet. I read that it is not very safe to just forward the ports and that it's better to do something like this through ...
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0answers
15 views

Can't access static IP ubuntu server

I am running an Ubuntu server 14.04 LAMP server within Hyper-V. When using DHCP, everything works. The moment I change it to a static ip by modifying the contents of /etc/network/interfaces to ...
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0answers
8 views

Why my HostOnly adapter stopped working on my virtualbox guest and I cannot connect to it?

Basically my setup is: Windows 7 laptop with VirtualBox with Centos6 installed. I have 2 adapters enabled on guest: 1 NAT for internet access and 1 HostOnly to connect to this machine (for e.g. scp ...
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0answers
37 views

Why do I have no default gateway but my internet is still working well?

I plugged my computer into an Ethernet cable at my office. When I cmd ipconfig /all I get the usual list of network properties, but curiously, the Default Gateway line doesn't have a number. It ...
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0answers
10 views

Getting error ERR_NAME_RESOLUTION_FAILED

When I try to go with the browser to www.thedrupalchecklist.com I get the error ERR_NAME_RESOLUTION_FAILED. (I changed the nameservers yesterday). If I go to ...
2
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1answer
56 views

What happens when I terminate a process and the socket send buffer is not empty?

In Windows (and probably in other operating systems), if a process has a TCP connection with another process on another machine, and then I terminate the process, an RST packet will be sent to the ...
0
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2answers
29 views

Eth0 missing on Linux 3.18.8 with onboard Realtek card

Ethernet is completely gone on a Laptop with Linux Mint Cinnamon 64 and Kernel 3.18.8. I have installed the realtek driver from their website, but that is not solving the issue. ifconfig -a only ...
0
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0answers
11 views

Is there any way to setup port forwarding with a 3G network on a Huawei E303 modem?

I have a problem with my connection. I am using 3G Etisalat SIM in dongle to access the Internet. I can not play games online. Whenever I enter into a server of multiplayer games I gets an error your ...
0
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1answer
23 views

Using the Ping command with VLAN IP's

I created a new VLAN IP for a machine using vconfig add eth0 22 Then I did a: ifconfig eth0.22 192.168.3.2 netmask 255.255.255.0 up`. After this, when I do a ping 192.168.3.2 it's successful. ...
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1answer
9 views

How does my Epson printer automatically install its software when it connects to my network?

I bought an Epson XP-410 printer earlier this week. I connected it to my Wi-Fi network and got it set up. I tested it by printing to it after installing the drivers that came on a DVD to a computer on ...
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votes
0answers
14 views

VPN to IPv4 via IPv6

after our ISP converted our connection from native IPv4 to native IPv6 and DS-lite, I am looking for a way to connect to our home network over VPN. Before the transition, I was using a service ...
-3
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2answers
48 views

Is my router secure from remote hackers if it uses NAT and has its built-in firewall enabled? [on hold]

My router uses NAT, so it blocks unsolicited packets if I did not send a packet to the source of unsolicited packet first or my port is not forwarded. I understand that this is not meant to be a ...
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1answer
16 views

Connecting a n device to a ac router.

Can you connect a wireless n device to a wireless ac router? Looking at a new ac router and was wondering if all my n devices would connect.
0
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1answer
18 views

Accessing wifi printer on a 2nd wifi network which is connected to 1st wifi network via ethernet

Ive been trying to work out the setup below (see image) where ive got a main wifi router / modem combi in one part of a house and then a ethernet cable going to another point in the house which is ...
0
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1answer
49 views

wireshark monitor mode, decrypting capture

I have a network, which has 2 nodes (a phone, a MacBook) both are connected to same wireless network, I know the SSID and password for the wireless network password: mypassword ssid: myssid security: ...
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votes
1answer
34 views

How come I can't ping a computer on the same network?

I use a MacBook Pro (Retina), and using my old MacBook Pro, I can ping my MacBook Pro (Retina) successfully. And I can also ping my MacBook Pro from my MacBook Pro (Retina) successfully (all in the ...