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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458 views

Allow trusted IP and Block others in Windows Server 2008 R2

For protection of a Web Server, I need to allow some trusted IP and block others. The solution I have tried: Create 2 inbound rules : Allow some IP and RDP IP Block All this resulted on ...
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817 views

How to set QoS on Tenda router to reduce ping

I have an Tenda router and I would like to set QoS so that i would would have low ping no matter what other people living with me do. There are 7 people living in out house, and our connection speed ...
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20 views

Bridged mode - Can the VM and host server be in different subnet?

I want to use Bridged mode in VMPlayer. Can the third subnet of the VM be different from the Host server? For e.g : Host server's IP : 172.17.X1.X2 Virtual Machine IP : 172.17.Y.X3 Please ...
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164 views

SSH tunneling to non-Apple machine using Back To My Mac

I have little home network with two Macs, Debian-based server and latest AirPort Extreme base station. Unfortunately my IPS uses PAT (double-NAT) and I have no public IP address. On my work machine I ...
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93 views

Can I reference multiple interfaces in OS X pf with wildcards?

I use /etc/pf.conf and pfctl from within a program to programmatically block and unblock network interfaces. When I for example want to unblock all tunnel interfaces I want to unblock all interfaces ...
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115 views

OpenVPN iptables and security

I want to run OpenVPN at home. I have a virtual instance of Debian 8 on my ESXi 6.0 host with its primary IP as 10.0.0.99. I assigned multiple virtual NICs (server, vpn, management, backup) with the ...
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38 views

TCP Retransmission on the receiver side

How does Wireshark knows that a packet on the receiver side is being retransmitted. I mean it makes sense on the sender side: Wireshark sees two identical packets (with the same sequence number) being ...
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33 views

What is required to make sure no plaintext password is on the wire between an Apache web server and an ActiveDirectory server for LDAP authentication?

At my work, I have a rather stubborn IT person who is extremely against adding services to our central SBS installation (which means no SVN, no internal web server, etc.) As a compromise, I convinced ...
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198 views

Incorrect Iperf Configuration? /Thorough Iperf Tutorial

I have a laptop (with Ubuntu) and a router (with OpenWrt). When I check the version for both, the laptop says I have version 2.05 for multithreads and the router says I have 2.05 for pthreads. Both ...
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14 views

Getting memory error while adding static route on mac

I am on mac with two interface Wifi LAN 144.33.22.22 I want that one ip go through to different interface I did this sudo route -n add -net 172.22.33.22 144.33.22.22 Then i get this error ...
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20 views

Initially can't connect to the internet, giving a waiting for 'ip' message

Since couple days ago, I have been having some problem connecting to the internet. When I try to open a website, and the problem occurs, it always says at the bottom of the browser: "waiting for (my ...
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24 views

Home wireless network with wireless storage setup guidance

I am looking to setup invest in a router to upgrade my home wireless networking. I currently have a USB 3.0 Harddisk and my plan is to be able to share over the home network. What are the possible ...
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19 views

Edit nmap database for os detection

I try to discover a network topology by using nmap. Part of the job is detect device type. I want to add my device information into the nmap database (which is not available before). Of course, I ...
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361 views

Ethernet LED blinks

I have HP 1000-1140ATU notebook PC. it has 2 Ethernet LED. One is White(glows when Cable is plugged and router is working.) second Orange which keeps blinking while Communication. Now my problem is ...
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84 views

Cisco anyconnect add exception

My setup: I am having a D-Link DIR-600M wireless router. (firmware: 3.02) I am using Hathway service as ISP for internet. I am using "Cisco anyconnect Secure Mobility Client" to access my office ...
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31 views

Can't access host-only network when on two interfaces

I'm trying to use a host-only connection with my VirtualBox VM. My VM is set up and can ping the host (192.168.56.101) on vboxnet0. If I disconnect the host from my local network (internet access) I ...
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94 views

packets information in tcpdump /capinfos

I'm testing the packet capture efficiency of a sniffer application (netsniff-ng) w.r.t a proprietary sniffer recorder. I had a linux system use tcpreplay to send 25 pcap files @ 100Mbps to both the ...
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75 views

Win 2012 R2 Hyper-V Core QLogic 2562 FC connection to Dell Compellent SC8000

I want to connect our HP Proliant Gen9 server to our SAN storage Dell compellent SC8000. On a server is Windows 2012 R2 Hyper-V Core installation, Storage adapter is Qlogic QLE2562 (made for HP from ...
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20 views

SSH Tunnel Revisited (from phone)

I have a question, that I'm not sure has been addressed here. I need to get from host A -> B -> C. I am on A which can only get to C through B. Now this is easy enough by just ssh'ing into machine ...
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30 views

Network credentials for Windows 8.1 pro?

What and where are Network Credentials for windows 8.1 Pro? When I try to access various applications such as MyBookLive (others) it asks me for my Network Credentials ID and Password. I have no idea ...
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57 views

Access multiple servers from one ip address

I have multiple servers running different webpages, some on different ports some on port 80. Now I know I can setup port forwarding on my router and just use different ports to get to my different ...
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49 views

Problems with Network adapter

About 5 months ago I purchased an Notebook HP 14-r002TX. And about a month ago I got a virus I couldnt shake so I just erased the drive and reinstalled winows 7. But I now wasn't able to connect to ...
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36 views

Wireless for internet wired for LAN games while sharing internet connectivity?

So without using a bridge connection, is it possible? Bridge connections are currently broken in the windows 10 build I am using. Causes my drivers to crash requiring a reboot to get working. As does ...
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587 views

TP-Link SoftAP mode error in Windows 7

Error code: "failed to configure ics, you can connect to softap, share the internet service will may be some problem" I am using TP-Link model TL-WN725N on my laptop as an access point for my Android ...
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131 views

Making mbuffer faster

I'm trying to transfer files as fast as possible across a 10 gig network connection. Up until now, I've been using rsync to move large files across the network, but I'm trying mbuffer now because I've ...
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39 views

Wired connection losing ONLY internet connection

My PC is connected to my AC-68U router through ethernet, it's the only wired connection, the rest of my household devices are on wireless. I noticed that sometimes, very rarely though, I lose ...
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65 views

Windows 8.1 automatically waking from sleep

I have a problem with WOL on my home network, hopefully someone can help as I am all out of ideas. Some info regarding my problem: I have recently setup a mini media server in my house, to host all ...
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43 views

What are the factors for Bad Ethernet connection?

I just made someone install RJ45 from my Living Room to my Office on two floors above the current one. Cable is Cat6 for what is worth. Thing is that when I put cables on the two ends (one to the ...
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68 views

Bash command to create adhoc network OS X

How could I programmatically (bash or any other language) create an adhoc network in OS X? I heard references to the airport utility, but haven't been able to figure out a way to do this.
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319 views

“Network path was not found” error when Windows resumes, if remote folders are open

If there is a network drive folder open in Explorer when Windows goes to sleep / hibernate, I get "Network Error - Windows cannot access " error message. Error code is 0x80070035 and name "The network ...
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677 views

Why can't my computer and Android phone communicate over WiFi?

I am trying to run an internet radio server on my computer with icecast that I will connect to over the LAN with my phone using VLC player, however on my network my computer cannot ping my phone and ...
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64 views

On what factors does localhost speed depend?

I am setting up a server in my home. I am using AN1020-21 router for the purpose and my laptop as host. I will use a desktop later if everything goes smooth. I am using XAMPP latest version. When i ...
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171 views

Hyper-V Network Adapter connection issues

I have been having network adapter issues with my virtual machine, when I connect to the virtual machine via Remote Desktop Connection the adapter is Microsoft Virtual Machine Bus Network Adapter: ...
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148 views

Virtualbox static ip setup windows guest

I installed Virtualbox on an Ubuntu host and created a windows guest. I set the network adapter to bridged and entered the ip, subnet and gateway along with google dns servers into the guest ipv4 ...
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69 views

How to proxy traffic through VPS to destination host

So, I have a nice, DDoS protected VPS. Then, i have a horribly protected Dedicated server which I'm running a minecraft server on. I want to set it up so, I can set my domain to the VPSs ip, and when ...
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108 views

Alfa AWUS036NVH constant disconnection

I'm running Windows 7 64 bits and I've bought an Alfa AWUS036NVH. The problem is whenever I try to plug it in one of the USB ports windows keeps connecting it and disconnecting it. I can't even ...
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95 views

How do I change my IPV6 adress and protect myself from DDOS attack?

So recently I accepted a random person on skype, this person started DDOS'ing me (atleast I think this is what itis) the person told me he was gonna DDOS me. The first thing I did was removing him, ...
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53 views

Network Discovery Fails on Static IP?

I don't know if I can get any help on this as I am running Windows 10 Beta, I have Hyper-V installed and V-networking setup aside from the beta locking my PC up and BSODing when I remove and reinsert ...
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77 views

dd-wrt subnet from network with in a network

I am testing some network configurations. I am trying to create a network within a network for TESTING PURPOSES ONLY. Basically the gateway for ARouter(made up name for main router) is 192.168.0.1(for ...
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94 views

Download Speed: Ubuntu 14.04 vs Windows 8.1

I am facing a curious case: I have 2 PCs, one Windows 8.1 and one Ubuntu 14.04 machine (both single boot only). I can't figure out the reason why my Ubuntu PC is getting download speed of 60 to 70 KB/...
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654 views

Low VPN (PPTP, OpenVPN) performance on raspberry pi

I own a raspberry pi modebl b+ with Raspbian and kernel 3.12.26+ installed. I recompiled the kernel and enabled pptp module in order to use it with pptp_accel Using the same VPN provider and their ...
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101 views

Thinkpad x200 ethernet cant connect to cisco modem (BUT to router it connects)

I got a problem with my x200 thinkpad. When I connect it with my modem/router thingy (http://www.cisco.com/web/consumer/support/modem_DPC3208.html), the connection it not established. Its get stuck ...
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158 views

100 mbps network transfers slows down PC

We have a network with many PC's. There is a 1 gbps ethernet switch with 8 ports and a 100 mbps ethernet switch with 8 ports. My PC is plugged into the 1 gbps switch. When someone on the network that ...
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75 views

Ipconfig The semaphore timeout period has expired

I encountered the following error while experimenting with the ipconfig /renew6 command: An error occured while renewing Local Area Connection : The Semaphore timeout period has expired. What does ...
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187 views

Gigabit speed testing - Windows 7 vs Ubuntu Linux

I work for a telecommunications company and have been tasked with testing 1Gbps network speed. Our technicians use Windows 7 laptops and need to be able to test these connections at customer ...
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241 views

on DD-WRT router how to reconnect PPTP and bypass VPN for specific IPs or connected devices

I've ASUS RT-N66U flashed with "DD-WRT v3.0-r27506 (07/09/15) big". I use VyprVPN service with PPTP protocol. I set up the router through PPTP protocol following these instructions: https://support....
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63 views

How can I bypass proxy using tunneling?

I am trying to use tunneling to bypass proxy. I have a server running at http://52.25.74.139/. Now, my proxy server, which address is 10.2.0.10 at port 80 does not allow us to use facebook. I tried: ...
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14 views

How can I use different services over one VPN tunnel?

I have one OpenVPN tunnel to a dedicated server with Ubuntu running. I would like to use (1) regular Internet masquerading, (2) accessing the TOR network and (3) surfing via another proxy hop from my ...
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16 views

Is there Any Way to See All Incoming Connections and Their Server Address?

I am trying to get a hold of the specific address of CDN's on certain websites and write them to a file. I understand that tcptrack and tcpdump and the like can find these addresses for me, but I am ...
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97 views

unable to login via ssh-1.99

I wish to login to the router on 192.168.1.1, telnet shows the following: >telnet 192.168.1.1 22 Trying 192.168.1.1... Connected to 192.168.1.1. Escape character is '^]'. SSH-1.99-Comware-5.20 ...