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

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24 views

squid proxy slow response

We are using the squid proxy in our setup and implemented as transparent proxy with user authentication. Before couple of days, while we are trying to setup the iptables the squid started performing ...
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1answer
21 views

Why does my modem takes many attempts to connect to internet

I have this old DSL 502T Dlink modem router(wired). I have been using this for many years without any issues. Recently though, there is issue connecting to the Internet (WAN side). It takes many ...
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0answers
25 views

Trying to FTP ftp.ups.com I get FTP error 425

Operating System:Windows 7 Home Premium Ed Browser: Firefox 30.0 ISP Earthlink.net Connection:ADSL Firewall: Zone Alarm: ZoneAlarm Security Suite version: 13.1.211.000 ZoneAlarm license key: ...
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3answers
52 views

Whole house VPN

I'v been on this quest for a few days now and I haven't found the answers I've been looking for. What I'd like is a "VPN Client" router or server that accepts all LAN traffic and sends it through a ...
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0answers
10 views

QEMU shares files with host via netcat

According to this link, under the user mode of QEMU, I can redirect a port of the host computer to a port of the guest. On this HOST computer: qemu-system-i386 -m 1024 -curses -enable-kvm -boot d ...
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3answers
1k views

Computers causes other devices to lose network connection [closed]

I have 6 IP cameras on my network. 2 of them (both plugged in via ethernet cable) lose connection to the network (can't be ping'd) every time I connect one PC to my network. I've reached this ...
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1answer
158 views

Is there any way to monitor the health of my Internet connection?

Is there a way I can log the health of my Internet connection like pinging a server then making a log/graph where I can see when my Internet connection were down??
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3answers
74 views

If I remove one network connection, shouldn’t my UNIX host just use the other?

An interesting problem. If there are two network connections attached to my MacBook Pro, and I remove one, shouldn’t the networking just use the other? Well, it didn’t last night - when I went to ...
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3answers
52 views

Use second network interface as private network

I've got two RJ-45 network interfaces built into my motherboard, and the second one is currently of no use to me. I would like to set it up so that I can plug routers into it and then access their ...
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2answers
48 views

Ways to differentiate between home and office private network

Let us consider there are two networks 1) home network and 2) office network. I have an application which will get the system IP and MAC Address of the installed machine while launching the ...
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0answers
16 views

How to correctly configure iptables on a laptop?

I have run these commands (tried switching the order too) because I want to set up a firewall on my laptop so that nobody can connect to it (except of course in response to a connection I've made): ...
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1answer
1k views

Route summarization: How to get the route summary patently. (VLSM, CIDR)

i'm looking for a smart and short way to calculate summary routes. (CIDR, route summarization) I'm common with the subject matter of summarization, supernets, VLSM, CIDR etc. but I don't always ...
2
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1answer
393 views

Protocol for Ethernet over USB?

I use USB to connect to modem on my computer. As mentioned here. There are about four main protocols which a USB cable to provide ethernet-style networking. I'm curious to know which one do I use? How ...
1
vote
1answer
20 views

NetBIOS replying only to external requests

I have some IPs on the internal network I'm 100% sure have netbios enabled. (I say "internal network", but all the IP octets differ. It is just the same institution and geographical location). If I ...
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6answers
13k views

Parallelizing rsync

I just moved and discovered after some trial and error that somewhere between my home and my remote server, there is some throttling going on...but the throttling is not very intelligent. It only ...
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0answers
13 views

Redirect all LAN network traffic to external proxy server

I have an external VPS that acts as Proxy (SQUID) and I'd like to force all the network connections requested by all my LAN devices to be handled by the proxy without singular configurations on the ...
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0answers
32 views

Can't access modem web interface

I have cisco modem with Linux firmware. I can't connect to modem admin interface via ip 192.168.100.1. I can't SSH to it either. I tried to ping it and it is unreachable. I noticed that sometimes this ...
11
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2answers
3k views

How do you get loopback addresses other than 127.0.0.1 to work on OS X

According to everything I read, the entire 127.x.x.x subnet should loopback. However, on my Mac, I can only ping 127.0.0.1 I know I've done this before (though possibly on another OS) and has come ...
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0answers
242 views

Windows 8 network bridge losing connectivity

I have a Windows 8 computer, set up to connect to a wireless network, with a network bridge to pass the network on to a NAS box (running FreeNAS) over ethernet. In general, this set up works fine. It ...
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1answer
766 views

windows 7 enterprise : 'net use' fails with 'system error 50 has occurred'

Windows 7 Enterprise SP1 x64 I was having problems mapping a local drive to a network shared folder, so I opened cmd.exe and ran : > net use > System error 50 has occurred > The request is ...
0
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1answer
41 views

Reinstalled Windows 7 - Now cannot connect to any activation server or Microsoft Exchange

I reinstalled Windows 7 this morning, and now I am unable to connect to any activation servers for any Adobe software, and I cannot connect to Office 365 Microsoft Exchange server in Outlook 2013. ...
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0answers
30 views
+50

how to configure a VPN client in the router based on a connection log from my computer

I am struggling with DD-WRT's PPTP client, as all configurations (and builds) I tried based on the all-important wiki but also older forum posts led to no ppp0 connection showing up with ifconfig. ...
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0answers
12 views

Site-to-Site Connection with Windows Azure

I've created a Site to Site connection using Windows Azure. My On Premise connection uses 192.168.0.0 - 192.168.0.255 and my Azure connection uses 192.168.1.0 - 192.168.1.255 on a subnet of ...
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2answers
12 views

Web usage monitoring

We are group of friends working in shared wifi network. Can anyone of us monitor what other guys are surfing from their computer? Is there any tools or Admin right for such monitoring?
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3answers
64 views

Not able to connect to Google docs, error message: The remote device or resource won't accept the connection

I have started facing a strange issue on my home network. I am not able to connect to docs.google.com, it gives the following on firefox: And in chrome: When I troubleshoot the link it gives ...
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1answer
15 views

ping repeater at bootup and never stop

I have a wireless repeater which for some reason loves to go into sleep mode all the time, even if it is not supposed to. The manufacturer swears it's not a defect, and when it works, it works great. ...
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1answer
17 views

How does other devices on my network receive incoming connections when I set public IP address to a specific device?

So I set my router to assign the public IP to my laptop. And this opens up all ports to my laptop so that when I host a website or a minecraft server and so on, I don't have to forward my ports. And ...
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1answer
22 views

How to connect hosts on one network to Internet connection on another network?

I'm not sure if I phrased the question correctly, so sorry for any confusion there. I have two routers. Routers are too far apart to connect them to each other using a cable. First is connected to ...
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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). ...
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0answers
15 views

QEMU guest and Linux host networking configuration

+-----------------------+ +---------------------+ | bro - Host - Linux | | Guest - QEMU- Linux | | +------+ +------+ | | eth0 | | | tap0 |----| eth0 | | ...
2
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2answers
13k views

Painfully slow transfer speeds on Synology DiskStation DS412+ NAS?

I've just bought a Synology DiskStation DS412+ and put 2 x 3TB Western Digital Red drives in it, set up in RAID 0. It's currently plugged in to my gigabit Netgear switch. I created a user with full ...
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0answers
10 views

Machine shows up in router but no responding to ping and any other connections

Well, the machine is not technically a server, just a normal pc box running linux. I left that machine on in my apartment when I went home for the summer. However, about one month later, I realized ...
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0answers
17 views

How to locally cache network drive in Windows 8.1

I work remotely and connect to a shared network drive through a VPN. This works great for the most part. However, when there are problems with the connection (either the internet on my end or at my ...
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0answers
26 views

How to connect to the a Linux machine behind a router via ssh tunnel

I'm using Windows system (Machine W). I want to a Linux machine (Machine L) behind a router via ssh tunnel. I have another Linux machine (Machine T) to establish ssh tunnel. I want only packets for ...
3
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2answers
2k 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 ...
0
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1answer
14 views

Find URL that a process, application or script is requesting

I can see the established network connection a program creates with TCPview, netstat or Resource Monitor but I'm trying to see the URL a program initially reaches out to. For instance, this URL ...
0
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1answer
40 views

Is it possible to open a port for listening without netcat?

I have a need for a Linux system to listen on a TCP port and dump what it receives to a file and/or stdout. The system does not have netcat installed. I have root permissions, but am not allowed to ...
0
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2answers
112 views

IPv6 Virtual Network in Linux

I'm going to do a project based on IPv6 Network. So I need to create a IPv6 Virtual Network in my Linux OS (I use Ubuntu). Also I need to create some virtual hosts in my virtual network and setup ...
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3answers
83 views

Access webapp on guest virtual machine from network

I'm running a webapp via tomcat on my virtual machine (development environment). I'm trying to access this webapp on other computers (other machines on the network, and the host machine) but I am ...
0
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3answers
80 views

VDSL2 Modem in bridged mode using IPV6 in LAN

I have a VDSL2 IPv6 modem, it is bridged by default so usually sharing files between computers in LAN has happened with the same speed as my connection, which is 100/30 mbits. So basically all the ...
4
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6answers
16k views

Can ping IP address and nslookup hostname but cannot ping hostname

I have a DNS server set up on one of my machines using BIND 9.7 Everything works fine with it. On my Windows 7 desktop, I have statically-assigned all network values. I have one DNS server set -- my ...
0
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0answers
12 views

Network/Server optimization with Samba Server and clients

So I have been trying to have a successful samba server for my home for a few months now, but it has just never really performed well. I am now getting serious about making it work correctly. To ...
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0answers
1k views

how to create virtual network interface with different gateway

I have 2 routers and 2 different internet connections. I want to send http traffic to router 1 and everything else to router 2. Is there something that will let me set gateway per application ?. ...
1
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1answer
29 views

Windows Networking - Treat two subnets as one network

We have an existing (old) network (10.0.0.0/24) and we're trying to add another (new) subnet (20.0.0.0/24) using a Cisco 2901 router. I added the appropriate routes and tested everything out. We're ...
0
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1answer
23 views

Streaming Video Often Not Playing On Windows 8

I'm having an issue that started happening a few days ago. On my MSI GE70 2OE laptop, streaming video has been giving me some issues. It's been mostly hit/miss with whether Netflix or Youtube will ...
2
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1answer
20 views

Active directory sites and services

I have 192.168.1.0/23 subnet for wired connection and 192.168.2.0/24 for wireless connection. Do I need to add 192.168.2.0 in AD Sites & services. Right now I have 192.168.1.0/24 added in the ...
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0answers
17 views

Ubuntu 13.10 doesn't really forget wireless networks

I have recently noticed that wireless networks I have previously connected to and removed from my known wireless list are still being searched by my wireless card. The networks do not appear in ...
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3answers
2k views

Windows 7 Administrator HomeUsers Account

I'm trying to login to my Windows 7 PC from another PC so that I can transfer files to the Windows 7 PC. I've just installed Visual Studio 2008 on my new PC, and I wan't to transfer all of my work ...
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0answers
43 views

Nested virtual machine internet connection

I am running a Debian virtual Machine (Sue) on VMWare, which has one virtual machine inside it (called Billy - I can enter it with (vzctl enter 100) ). I want to be able to access the internet on ...
0
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2answers
32 views

ASUS RT-N66U how to identify source of traffic spike

I have an ASUS RT-N66U as my home router. We are experiencing some traffic spikes in downloading over WiFi that slow all other activity to a crawl. Is there a way to identify the source (ip/host) of ...