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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9k views

How can I enable the wireless access in Lenovo?

In a Lenovo G585 with Windows 8 installed I can not connect to WIFI networks. I see that there is no button to turn on the WIFI. After googling I found that Lenovo's don't offer such a button and I ...
8
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2answers
559 views

Does 0.0.0.0:0 and *:* represent the same thing?

I used netstat (in Windows) to view the listened ports for TCP and UDP: I noticed that in the Foreign Address column, UDP displays *:* instead of 0.0.0.0:0, do these two values represent the same ...
1
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1answer
380 views

Find NIC Link Speed without Being Root

I need to find the link speed of a NIC on a Linux machine without using elevated (root) privileges. Normally I would just use ethtool, but that appears to require root privs. One can "dmesg | grep ...
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0answers
11 views

My VPS was hacked: DDoS to RIPE database

Recently, I've received a message from my VPS hosting provider. That's it (with some personal info removed): Your server https://cloud.scaleway.com/#/servers/<...> has been locked for DDOS from ...
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0answers
6 views

Use both antennas, Intel Dual Band Wireless - AC 7260 [7260HMW]

I just got the following wifi adapter: Intel Dual Band Wireless - AC 7260 [7260HMW] https://amzn.com/B00HJCBV64 It has inputs for two antennas, but no matter what I do the second input does not work. ...
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2answers
3k views

How to solve weird ping spikes on laptop during online games

I have samsung np900 ultrabook with windows 8. When I'm playing http://www.haxball.com/ my ping increases for 5 to 10 seconds almost every minute. However when I'm playing on desktop computer there is ...
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0answers
9 views

online gps service acting like GPS unit and share data over tcp/ip

I'm bed wit English, and don't know what to put on google search!!!. I have rtl-sdr program on which I can determine max. signal destination. This app needs com port, there are couple solution over ...
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0answers
5 views

How do I remotely access/play on a docker Minecraft server created by Kitematic?

I want to play on my Minecraft server using my laptop, no matter where I'm at. The server is a docker Minecraft server created by Kitematic located on a dedicated home server with Windows 10. I ...
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1answer
10 views

Changing IP of DNS Server machine

I am in windows server 2012R2 machine environment and there I am having my Active Directory and DNS server(local LAN) configured. Now due to some requirement I want to change IP of this machine and ...
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0answers
15 views

Listen to TCP port but only accept connections from a specified IP in netcat

I can use the following command in netcat to listen to a TCP port: nc -l -p 12345 But any IP can connect to this port: Is there a way to only accept connections from a specified IP? Note that I ...
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2answers
38 views

iptables prevent lan access from another router

I have two Tomato firmware routers setup. Router X is connected to the internet via it's WAN port. The router Y's WAN is connected to router X's LAN1 port. I'd like to restrict router Y so that it ...
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1answer
12 views

How to check if a server i connect to supports ECN (Explicit Congestion Notification)

https://en.wikipedia.org/wiki/Explicit_Congestion_Notification How do i check if a server i connect to supports ECN? I'm on OSX 10.11.5. What i'd like to know is what commands to use to see if a TCP ...
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0answers
10 views

Directly plugging into my modem gives connection 100% of the time, while going through my router gives connection 50% of the time

When wiring a device to our modem, the internet is constant and at the speed we pay for. If we plug the modem into the router and try to broadcast, it will either work or it won't. I'd have to guess ...
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2answers
21 views

ipaddress of my VM doesn't look correct

I am trying to setup metasploitable in a Virtualbox VM. My impression is, that once Virtualbox is set up to work in host-only adapter mode, the VMs should follow the networking settings defined in the ...
2
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1answer
35 views

Strange powerline networking issue - 'missing protocols' in Windows 10

I have a home network with mix of cat5 and powerline networking. The number of nodes has grown over the years as my kids have, but the general layout has been in place in pretty much the same ...
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1answer
16 views

Game process not binding UPD socket to VPN interface

I've recently set up a VPN for playing LAN games with some friends. I have a Linux server running pptpd and have successfully been able to connect on Windows using the VPN client built into the ...
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1answer
40 views

Do I really have a telephone-only cord connected to my RJ-45 jack?

I recently purchased an end table that comes two electrical outlets and an RJ-45 jack. The RJ-45 jack came wired with a cable I am having trouble identifying. The markings say E170689 AWM STYLE ...
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0answers
7 views

Can I seperate Lan traffic over Ethernet port of Mac and Internet over Wifi?

My home network is simple. My wife and I have computers upstairs (offices on 2 floors) whereas the Internet access router is downstairs. I'm on a Mac (OS10.11), she's on PC (Windows 8). All traffic, ...
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0answers
23 views

IPv6 routing failing

I am trying to setup a lab IPv6 network, and I am proceeding in the following way. I have a device, which needs an IPv6 global address. I have configured my Windows-10 laptop to be an access point ...
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0answers
9 views

Connect Linux boxes in IP over USB

I went through this: The best way to do TCP/IP over USB on Linux And would like to know more about the feasibility/procedure in order to have two Linux boxes IP-talking to each other over USB. I did ...
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4answers
3k views

How to configure network with two routers under Mac OS X

I have difficulties configuring network under Mac OS X. There is two routers. Router 1 has internet and I'm connecting to this via WIFI. Router 2 has no internet, but into this router is connected a ...
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1answer
42 views

How to white list some ip and all the rest block while having already a DMZ?

I have a Linux machine running which has local ip: 192.168.1.2 connected to a router with public IP 8.8.8.8, now the router 8.8.8.8 has DMZ to 192.168.1.2 As a result spammers, hackers, crackers ...
37
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3answers
113k views

What's the difference between RDP vs VNC?

What's really the difference between the RDP and VNC? They both provide the same function and features?
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0answers
220 views

Host-only openSUSE VMWare Player guest not pingable from Windows 7 host

I'm running VMWare Player 5.0.1 build-894247 on my Windows 7 computer. I need to have the openSUSE virtual machine run with a static IP but only be accessible by the host (i.e. not be on the network)....
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1answer
12 views

Hyper-V: guest OS requires internet driver

I'm using windows 10 64-bit on my Asus gl552jx-xo093d (i5-4200H). I just installed Windows 7 Starter (32-bit) as VM on Hyper-V. When I start the VM, I can't access the internet. The problem is I can'...
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1answer
21 views

Secure Public Wifi at Apartment with Personal Router?

I recently moved into an apartment and wifi is included in the rent; however, it is a public network for each building and is not secure. I currently own a router but I do not know how to use it to ...
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1answer
489 views

SSH windows to vmware

I have a VMWare Player running a SUSE Linux Enterprise Server 10 (x86_64) VERSION = 10 PATCHLEVEL = 1 All works fine execpt that I cannot connect from the windows host to the image. From ...
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1answer
3k views

After cascading two routers, can't connect to the second anymore

I have two routers. The "first" one is a TP-Link TL-WDR3600 and is directly connected to a cable modem which my ISP gave me. DHCP is enabled here. The "second" one is Linksys WRT320N. This one is ...
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2answers
142 views

Construct a Lan in VMware Player

This is probably a frequently asking question, but I googled and tried for so long and still not success. I have installed 2 guest(Windows Server 2012 R2) in my host(Win 7), and I want my guests ...
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1answer
10 views

windows server: top-level domain DNS LAN configuration

I am trying to configure the DNS service of a Windows server. The LAN hosts should all be assigned the top-level domain ".lan". Where do I implement this in the DNS configuration GUI?
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1answer
1k views

vmplayer (vista) doesn't see host's network

I have a windows Vista host with vmware player and a guest (also with Vista). Unfortunatly, the guestr cannot see any network. Since these are my first steps with VM Player, I don't know which ...
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0answers
34 views
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iptables reject tcp-reset on loopback

I am trying to check how a software would behave if there is a network failure. That software is using tcp send() and recv() to communicate. Previously I was making the software communicate by ...
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2answers
18 views

Ethernet Passive Wire Tap

I was looking to make a passive Ethernet wire tap for my own home use just to see how it works. The only thing I'm not sure about is which pairs I need to passively tap? I've seen some pictures that ...
0
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2answers
19k views

Can't find my IP address for my network attached storage

I have a Zyxel NSA-2400 that I am currently trying to move all the data onto an external drive, because I want to replace the drives with new ones. There was some issue earlier with transferring data, ...
0
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1answer
20 views

Why aren't my ports opening on my UBNT airrouter?

I'm trying to start running a server at home and I've setup the ports on the router like this: internal IP: 192.168.1.111 internal port: UDP 9987 external Port: 9987 source and external IP/mask: 0.0.0....
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0answers
7 views

windows server with multiple ethernet adapters and hyper-v switches

I have a Windows2016 test server with 4 ethernet adapters. I have assigned a static address to one adapter. The second one is assigned to an "external" virtual switch, which in turn is connected to a ...
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0answers
25 views

How do i configure a network to avoid unwanted material being shared across the newtork? [on hold]

A client asked me to setup a system of networked(server based) computers that doesn't accept any removable storage device even CDs. all went well until i reached the technical department;they are ...
3
votes
2answers
21 views

Test environment post carrier-grade NAT by ISP

Today I replaced my old router with a new faster router in my home. However, this event appears to have migrated me to carrier-grade NAT'ing by my ISP. I tried with my old router but the same holds ...
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0answers
8 views

Cannot ping second IP on same NIC

So I have decided to get into running a home server running Windows Server 2016 Technical Preview 5 (DHCP, DNS and AD DS) in VMWare using a bridged connection to a router without any internet access. ...
5
votes
3answers
4k views

tcpdump: how to get grepable output?

I am trying to troubleshoot an issue where I only have tcpdump available on an appliance. I want to use tcpdump to filter web traffic, and only display traffic containing certain strings. I do the ...
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0answers
193 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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0answers
28 views

How to constantly show public IP address on Windows 10

We are on a a multi-WAN load balancer and I needed to know constantly what WAN a client PC is on. I think the only way to tell is to see the public IP the clients are on. In Windows, how can I ...
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0answers
19 views

Every time I connect to a network, Windows adds a route. Can I control that?

I have a wired network via an Ethernet adapter built in to my motherboard. It has access to the Internet. This network is 192.168.197.0/24 I also have a wireless network that currently doesn't have ...
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1answer
114 views

-L flag eqivalent in windows Netstat?

I'm trying to set up a tor node following http://sickbits.net/creating-a-personal-privoxytorproxy-ec2-instance/ using ubuntu 14.4 lts on ec2. I've gotten to: $ ssh ubuntu@ec2-blah.amazonaws.com -i ....
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2answers
48 views

“netstat” vs “netstat -a” in Windows

I want to know the difference between netstat and netstat -a in Windows. I think that this is the difference: netstat will display all of the TCP connections in every State except for LISTENING. ...
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1answer
43 views

How is HTTPS browsing history monitored?

I am researching on how to monitor HTTPS browsing history. I am not a network person, so apologies if I sound ignorant in this issue. I googled the following questions below, but nothing substantial ...
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1answer
38 views

Unable to connect to internet on Vmware workstation 12

I'm having some trouble attempting to access the internet on my Ubuntu VM, with a Windows 7 host. I've done my research and have bridged the network adapters I've also gone onto my host and checked ...
0
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2answers
13 views

How can I make the DNS server list persist on OS X?

I usually set the DNS servers on my laptop to be 8.8.8.8 and 8.8.4.4, which are Google's DNS servers, via the System Preferences > Network > $Interface > DNS pane. Far too often though, these servers ...
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0answers
24 views

Windows 7 ADSL plus internet from my phone, chose a primary connection?

I want to stream to Twitch which require minimum 2 mbit/s upload speed which I do get from 3G on my phone, so I connect my phone to my PC through USB to share internet from phone to PC. The problem ...
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2answers
39 views

Iptables - Remove filtered ports and close them

Here's the result of nmap command on my dedicated server from my home linux pc : Not shown: 980 closed ports PORT STATE SERVICE 20/tcp filtered ftp-data 21/tcp filtered ftp 22/tcp ...