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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376 views

How can I share my wifi connection? ad hoc - windows 10

I recently updated to Windows 10, and I really like it (compared to Windows 8/8.1). I have a RTL-8187 WiFi Antenna connected to my laptop to extend my range, as the router is pretty far away. If I ...
2
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0answers
66 views

Scan using nmap on a different network

My system is connected to a router and that router is the part of LAN. How do I scan other systems that are a part of the LAN to which my router is connected ? My Router's DHCP allocates C-class ...
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0answers
90 views

How to set manually scale factor of receive window size in windows8? (Window Scaling - RFC 1323)

My internet download/upload speed is 6.0/0.6 Mbps. One day, when only I was using network bandwidth on LAN, I started downloading a large file from YouTube by using IDM. Initially, I easily use all ...
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216 views

OpenVPN client fails to activate pushed DHCP options for DNS and DOMAIN

OpenVPN client is connecting to OpenVPN server OK. During connection, we see the options pushed contain dhcp-option of DNS 10.0.0.2 and DOMAIN prd1.o2: Sun Aug 2 17:31:06 2015 PUSH: Received ...
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0answers
29 views

Snmpd blind scan on different subnet

I have snnpd installed on 3 computers on the same subnet and can discover the rest from any computers in that network. The command I use is: snmpwalk -v 1 public ip However, when I move one to ...
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65 views

Everytime I restart router, i have to plug in ethernet cable again in wan port. Why?

I have an ADSL+2 modem to which I have connected to a TP-LINK WR740N wifi router with a 100 feet Cat6 Ethernet cable. Every time I turn on the router , i have to plug in the Ethernet cable again in ...
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146 views

Netgear R7000 router lags when connecting to VPN

I just bought a new Netgear Nighthawk R7000 router to use on my 100Mbps cable broadband connection. Download speeds and upload speeds look fine except when I VPN into my work's intranet. On my old ...
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99 views

VirtualBox networking (inception computing)

I am new to world of networking and now I am trying to connect 3 PC`s together. I have windows 7 host that runs Ubuntu64-bit server guest, that runs ubuntu32 server guest. Win7- Host Only network (...
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274 views

DNS Search Suffix: Multiple domains, multiple DNS servers

I'm at work connected to workdomain.com I use a client VPN connection to connect to homelab.com Now if I ipconfig /all I get: Windows IP Configuration Host Name . . . . . . . . . . . . : ...
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87 views

Using home NAS as a substitute for local storage: Performance and application compatibility considerations

I recently got a Mac laptop for the first time, and now have 4 computers in the house (2 Mac laptops, 2 Windows desktops). The idea of the laptop is so that I can have more computer time because I can ...
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71 views

2 servers and only one way traffic

This has me stumped... I've got an old war horse SBS 2003 server and a server that is a few months old running Server 2008 R2 (Don't ask me why they put 2008 on it when it's so new...). The 2003 ...
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112 views

Ethernet will not activate on DELL/Alienware Aurora R4 box running Ubuntu 14.04 LTS

I'm running an Alienware Aurora R4 with Ubuntu 14.04 LTS and the Ethernet cable is plugged in, the light is amber, but it will not connect. It shows: NEVER USED. I've turned off IPV6 and set IPV4 ...
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0answers
153 views

Restrict port access per application

I'm currently working on a platform that will allow other users to run their applications on my platform. Though, we need to be able to restrict this application in terms of RAM, CPU usage, network ...
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0answers
1k views

Error 651 while connecting to PPPOE network on Windows 8.1

I have recently installed Windows 8.1 on my computer and I can't get it to connect to my ISP (RDS - Romania). My ISP uses PPPOE, so I have created a Broadband Connection with the user name and ...
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0answers
127 views

Prevent ARP spoofing in AP, “wl deauthenticate” command

I am in a situation where I cannot do MAC filtering in an AP and I need to block a user that is ARP spoofing the network. I am trying to use the command wl deauthenticate to kick the client. And I ...
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361 views

Something “kills” my Apache-PHP-Processes after some time

I have the following really strange problem and hope, you guys can help me out. If there are any questions, I'll try answer them as best as i can. The problem I have a web server with Debian 6.0, ...
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341 views

Can I set up Windows 7 VPN so that only sites blocked in China are routed through VPN?

I'm in China behind the Great Firewall using a VPN service provided by a friend so didn't get blocked in the VPN crackdown in January 2015. Since VPN can slow down traffic a lot I'd like to only ...
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48 views

Open up for remote website request on IIS 8

I have a IIS 8 on a windows server 8 that currently has its firewall shutdown. I am trying to open up for other computers to access the website that this IIS is running. I can access it locally. I can ...
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125 views

Controlling shared internet connection on LAN, (no switch, just a basic lan with a modem and PC with two network adapter)

I have shared my internet modem connection using a PC with two LAN adapters. I want to control the access of shared internet on my LAN. IP of the internet modem is ----------> 192.168.1.1 Shared ...
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397 views

How to find what kind of network am i connected to? Is it a LAN or a WAN or a MAN ? in windows

How to tell whether the network i am currently connected to is a Local Area Network or a Wide Area network or a Metropolitan Area network ? Also what is a MAN(is it a link between two or more ...
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412 views

MacBook Pro retina 2013 with Yosemite 10.10.3: Severe Wi-Fi issues only on main account

In the last few weeks my MacBook Pro has developed increasingly severe Wi-Fi problems. At first it would drop connection every 10 minutes or so, but now it cannot find a network at all. In fact, the ...
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134 views

netstat -o timer value “probe”

A bit of background on the scenario. I have a distributed application running on RH6.5 that uses JMS (OpenMQ 4.5.2) to send messages between hosts. One host (Host A) receives information from network ...
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437 views

internet traffic slow through switch; VOIP issues too

There's already a post about this, but the solution to that one didn't work for me, so here's my version: We have Cox cable internet, 100mbps | We have a Sonicwall TZ 215w | We have a netgear L2 ...
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1k views

Openwrt bridging issue between wireless and ethernet port

I've this scenario: an AP connected to the STA wirelessly, the AP is a DHCP server I have following configurations in /etc/config/network of the AP: config interface lan option ifname 'eth1 ...
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74 views

Why broadcast ping takes longer than host ping

I have a simple question. I have read that when I'm pinging broadcast address in LAN every device responds to ICMP Echo Request and console shows first(quickest) response. But when I pinged ...
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234 views

Proper network architecture for fault tolerant multi WAN multi building WLAN setup

I need help with deciding the correct network architecture for a guest WLAN deployment. We have 3 buildings, and each of them has its own LTE router (Mikrotik RB411U) connected to an Ubiquiti ...
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186 views

What are These Outbound Network Rules

I Have a few odd looking network outbound rules for my computer they are Name Group Application Package f5.vpn.client f5.vpn.client ...
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0answers
910 views

Disabling/Unbinding IPv6 on a specific network adapter without UI

My problem is similar to the one described in http://serverfault.com/questions/257118/how-to-disable-ipv6-on-a-particular-network-interface-using-server-core - just on Windows 7. The answers seemed ...
2
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0answers
112 views

Transferring Files Over Ethernet to Network Storage Kills Internet Connection

I have an Airport Extreme router (newest model) with a USB drive attached that I transfer files to. My Mac Pro (3,1 running latest Yosemite) is connected to this router via Ethernet, and I've been ...
2
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0answers
64 views

Sudden bluescreens when interacting with the Steam platform

I recently made a build for a friend and things are running great, except he always gets bluescreens that indicate a hardware issue when interacting with the Steam platform. Bootscreens often occur as ...
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0answers
46 views

Shared WLAN between 2 houses ( Already tried some stuff )

I've need some help guys and hope someone can help me out. Well my Task is more or less common, but the HOW-TO's which i found on the net are mostly for greater distances or "i dont care about speed" ...
2
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0answers
132 views

Convert ADSL wireless router to AP, not able to connect to internet wirelessly

I have a Zyxel P-660HW-T1 v3 ADSL2+ Wireless Router. I have a PPPoE broadband connection. There is a CPE on the rooftop. An RJ45 cable comes down from the CPE to my house. I need to have wireless ...
2
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0answers
102 views

IP adress for debian.org and debian.net

we are enforcing a strict firewall policy at my firm and are whitelisting adresses on the internet. My issue is this : I need to get a list of IPs (or at least a subnet) for standard debian update ...
2
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0answers
47 views

Prevent computer from connecting to outside LAN networks

I'm looking for a solution like Restrict Computer from Connecting to Outside Wireless Networks that would also work with wired connections. We have a consultant in our company that sometimes works ...
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0answers
524 views

Issue with setting up IPSec VPN in host-to-network mode

I have set up IPSec VPN using OpenSwan on CentOS 6.5. But not able to get the tunnel up and running. When site B tries to ping my VPS (site A), they get following error: Feb 26 11:33:59 [IKEv1 DEBUG]...
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0answers
263 views

Does Windows 7 impose a limit on incoming Websocket connections?

I've spent the last hour searching Google for this, and while there's quite a lot of content on it, I still can't figure it out. My situation: I'm using Windows 7 64bit and I've got a web chat ...
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0answers
524 views

Canon MF Network Scan Utility - autohide/“silent mode”

I've got this AIO printer - MF4570dn. Everything is working.. fine. What I want is some version of "silent" network scan - where you just put docs in scanner and press: Scanner -> Computer Scan -&...
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0answers
62 views

Ekiga softphone shows as “registered” — but is it actually?

Is Ekiga actually registered? How would I know? I think Ekiga connects, or at least it says "registered": But, when I exit Ekiga, and use SFLphone, it fails to register: While sipsak shows a ...
2
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0answers
159 views

Why is the Windows firewall not blocking outbound ports?

I use the following rule to block all outbound communications to remote 80 ports. I want to use this approach to prevent web requests initiated from this computer. But it seems I still can access web ...
2
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0answers
154 views

NetBIOS Name resolution fails when behind another router

On "PC3", Windows name resolution fails like this. ping PC1 Ping request could not find host PC1. Please... ping 192.168.0.2 Reply from 192.168.0.2: bytes=32 time<1ms TTL=128 ...
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0answers
507 views

Microsoft Virtual Machine Bus Network Adapter - Code 10

System Specs: I'm currently running a Dell laptop m3800 with the Intel Dual Band Wireless-AC 7260 adapter, 16 GB of RAM and Windows 8.1. Within this laptop, I'm running a Server 2008 R2 Standard ...
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0answers
39 views

Is there any reason not to use the external IP when accessing local resources?

Until recently I had always assumed that accessing the external IP address from within the LAN would go out to the internet and then back unless specially configured in the router. Apparently, if it ...
2
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0answers
85 views

DNS options windows 7 aren't saved?

I'm trying to use a free DNS (such as Google's: 8.8.8.8 / 8.8.4.4) by typing this in thoses options: But when I click on "validate settings upon exit" and "ok", the network diagnostic tool from ...
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0answers
57 views

Can not connect to VirtualHost when VPN

I run VirtualBox on my local machine with Ubuntu which hosts my application. Application URLs points to VM IP Address in my hosts file (/etc/hosts). And this configuration works fine. I can also ssh ...
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0answers
92 views

Requirements to show up in Network Neighborhood

What are the requirements for a Linux box running Samba to show up in Network Neighborhood in Windows and to be accessible using "\\SERVERNAME\"? I read that I need to make the Linux box the WINS ...
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0answers
212 views

OSx Transparent proxy authentication with pf

I'm under a corporate, squid proxy. It is problematic to develop under this proxy since I have to setup the proxy details for every thing I use (for example, setting npm, or terminal http_proxy) I ...
2
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0answers
350 views

Modify incoming packets before forwarding in Linux

I’m using a Linux (Debian based) system on which IP forwarding is enabled (/proc/sys/net/ipv4/ip_forward is set to 1). I can read the incoming packets using a raw sockets program, but I want to modify ...
2
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0answers
253 views

Cannot connect to the server through host machine that I created in guest machine in Linux Mint

Using virtualbox I am running a server on Linux-Mint(guest) and client machine is windows-8 (host). When I try to connect to the server (which looks like http://169.254.158.126:8080) from windows-8, ...
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0answers
349 views

How to automate running the dhclient for wwan0?

in Linux Mint 17 I have to run sudo dhclient every time I connect and disconnect to/from the Internet using a mobile broadband dongle, because otherwise the connection is declared active but when I ...
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0answers
141 views

403 Forbidden error only for wikipedia site

So I was browsing the Internet and everything was nice and dandy suddenly my favorite site wikipedia gave me this: Forbidden You don't have permission to access this page. I have been trying ...