Networking refers to the technologies and techniques that enable the interconnection of devices and applications allowing them to communicate electronically.

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One of VPN clients cannot connect to some remote computers

I am baffled. We have openvpn server and have many clients on 10.128.28.xxx network that are able to connect to all our networks. I installed vpn client on one windows box - for some reason that box ...
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6 views

Wait init.d script until host name is ready, Ubuntu/Mint

I have a postgres SQL, which I would like to bind to local host and internal net IP. In /etc/postgresql/9.3/main/postgresql.conf . . . listen_addresses = 'localhost,myhost.mynet' . . . If I just ...
0
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1answer
23 views

Port forward linux iptables

My current network setup consists of a physical nic eth1 receiving my public ip from the modem. Next I have kvm/qemu virtual machines running on a virtual network using the ip range 192.168.122.0 - ...
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0answers
9 views

Getting server to reply to client via either network (they can see each other in multiple networks)

I have multiple internal networks, each of them also corresponding to a different VLAN. There's a firewall that acts as the gateway for everyone on every network. It has multiple interfaces, one on ...
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0answers
8 views

Netgear Switch Configuration File Type

My company has Netgear GS724TP switches and I need to download the configuration file for each switch. What is the file type in which they should be saved as? I've seen .ber, .scr, .cfg, and .txt. ...
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0answers
23 views

Hyper-v virtual machine acting as two separate vm's

I have a Hyper-V virtual machine (vm1) that has two separate instances of itself. I can log into what should be the same VM (vm1) through Hyper-v and RDP (Remote Desktop Connection) with the same ip ...
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1answer
15 views

How to configure a zone transfer from a windows 2008 primary dns server to a CentOS secondary dns server

So my primary dns server is a windows machine and I would like to configure a zone transfer to a secondary dns server that runs CentOS. Both indivdual dns servers were tested and work on their own. ...
0
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1answer
18 views

MSE changed windows firewall settings and win server 2008 r2 can not be access by it's name anymore

i have installed Microsoft Security Essentials on Win server 2008 R2 and it modified the Windows firewall, this caused an access problem, win server 2008 R2 can not be accessed by it's name anymore ...
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0answers
13 views

Window Server 2003 Computer Not Accessible From Other Computers But Ping Works [on hold]

I am a new member and I wanted to add a comment on the question in this post I can ping a network computer but not access it but was unable because I needed to have a better reputation and I wanted to ...
0
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0answers
21 views

Change Gateway doesn't work on Windows 7

This PC was configured with 192.168.6.1. But I tried to change it to 192.168.6.51. Although route print showed the default gateway is 192.168.6.51, but the packets next hop is 192.168.6.1. IPv4 Route ...
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0answers
19 views

Can DNS fail because of a client server configuration?

I recently began work in a new environment. The network has many subnets and many nodes with many network engineers who work in the environment. There is a Linux server with Cobbler on it. It has a ...
2
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35 views

Does Fast Retransmit and Retransmission Timer work at the same time?

When Fast Retransmit is implemented, if I received packet 1, then I will send an ACK that says I need packet 2, and then if I received packet 3, I will send a duplicate ACK that says that I need ...
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1answer
58 views

MIKROTIK - Two LANs connected with switch

I have a very simple network. I have two LAN networks (192.168.2.0/24 and 192.168.3.0/24) connected via a router at each site and the routers are connected via a switch. ...
1
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1answer
30 views

Different network speeds from servers on same subnet

I have a pretty strange issue, I'm looking for advice on how I can debug it. I have two servers (A) and (B) on the same subnet and switch. Server A->B transfers at a full 12MB/s and vice-versa. ...
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0answers
19 views

R packages - Should I mount /usr/share/R/library

We have a small cluster of linux machines (~15) with up to 20 users. Over the last few years we have written a few basic R scripts for doing basic statistical analysis. The problem I have had as a ...
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0answers
18 views

Can /etc/inittab errors prevent network startup? [on hold]

I have a small php server running on Raspbian via /etc/inittab: push:235:respawn:/home/pi/volkszaehler.org/misc/tools/push-server.php Due to configuration issues my php script was removed and- in ...
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0answers
41 views

Why is giga bit network fast than disk? [on hold]

Why is fast giga bit network than disk? According to below URL for slide of Dr Jeff Dean, giga bit network is fast than disk. ...
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0answers
16 views

Policy based routing on centos [duplicate]

I am trying trying to implement policy based routing on a centos 7 server using these directions - . The routing works fine until I reboot then the policy routing rules disappear. If I enter them ...
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0answers
4 views

RADIUS for unique hotspot and iOS clients?

Sorry if stupid questions. I need to be certain. Is Radius needed for a hotspot captive portal, where no login is needed, and which is unique (one only router) ? Is Radiys involved in another thing ...
0
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0answers
10 views

VirtualBox networking (inception computing) [on hold]

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 ...
0
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2answers
19 views

Using IIS to give domain name to external site

At my workplace we are currently hosting our own website on a windows server using IIS. We've now had a new public website created by our marketer using SquareSpace and we want to be able to point our ...
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0answers
18 views

Can't access from outside process running in a Docker container

I'm trying to run a gameserver inside a docker container on my server but I'm having troubles connecting to it. I created my container and started my gameserver (which is using port 7777) inside it. ...
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0answers
13 views

DNAT not forwarding to correct (local) IP address

I'm trying to port-forward a HTTPS service which uses different SSL certificates for each of the several IP addresses on the machine. Web server listens on each IP address on the internal port (444) ...
1
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1answer
39 views

What can I do to improve a business-oriented network that only has access to 3 6Mb/1.5Mb lines with 15-30 clients?

I work at an e-commerce based business in a 16k warehouse. The only available ISP solution is AT&T, with each 6Mb/1.5Mb line costing $50 and fiber optic being an option for $800/mo at 20Mb/20Mb. ...
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1answer
25 views

What can I do to improve a business-oriented network that only has access to 3 6Mb/1.5Mb lines with 15-30 clients? [duplicate]

I work at an e-commerce based business in a 16k warehouse. The only available ISP solution is AT&T, with each 6Mb/1.5Mb line costing $50 and fiber optic being an option for $800/mo at 20Mb/20Mb. ...
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0answers
6 views

NIS client is not able to change password using yppasswd in OpenSuse 13.2?

NIS Server - OpenSuse 12.1 NIS Clients - OpenSuse 13.2 At NIS Client: nisuser@opensuse13.2:~> yppasswd yppasswd is deprecated, use /usr/bin/passwd instead Changing password for nisuser. Old ...
2
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1answer
46 views

Securing Windows Server 2012 from the internet

I've placed my direct internet connection into the public profile for the firewall and started disabling every rule to block all but RDP. The only rules I am not sure about are these Core Networking ...
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0answers
12 views

windows server 2012 disable automatic lockscreen/logout after end session

I'd like to disable disable automatic lockscreen/logout after end session. I need this because autoit scripts being automaticly stopped as I close remote desktop.
0
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0answers
13 views

AWS + KeepAliveD: Not able to Ping or Telnet Virtual IP from remote hosts

I am setting up KeepaliveD with 2 nodes on AWS by following this article. My Virtual IP gets moved from one node to another in case of fail-over. However, the VIP just cannot be accessed from a remote ...
1
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1answer
19 views

KVM fastest network between 2 guests

I wonder if there is any way to speed up the network communication between 2 KVM guests on the same physical machine. Would that help at all if I would configure a separate bridge network for just ...
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1answer
37 views

Hostname is not mapped to the ip address correctly [on hold]

I recently installed Wordpress on my home server running Arch Linux. Everything else works smoothly except that when try to access the server externally, the style sheet is not rendered. I have read ...
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1answer
29 views

How to use lan ip on outside server [on hold]

I have a D-Link Router with Static Ip Address. That ip is located in sri lanka. Now i have a vps in usa. But i want to use that sri lanka ip on my vps as main server ip. It is possible? If possible ...
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0answers
16 views

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

I'm trying to use a host-only connection with my VirtualBox VM. My VM is set up and can ping the host (192.168.56.1) on vboxnet0. If I disconnect the host from my local network (internet access) I ...
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2answers
78 views

IP on different subnet mask [on hold]

I'm still learning the ropes of Windows Server (specifically 2012R2). My assigned task is to setup a static local IP address, I managed to get it set to 192.168.1.96 (with subnet mask 255.255.255.0) ...
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1answer
28 views

How to extend the VLAN defined in the Ethernet network into the WiFi network? [closed]

How to extend the VLAN that you have defined in the Ethernet network into the WiFi network?
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0answers
8 views

ip command vs qdisc discrepancy in dropped packets

I am simulating packet loss via mininet network on Ubuntu 14.04. Why are there no dropped packets showing up in ip command? For switch s3, I have Qdisc (sudo tc -s qdisc show): qdisc htb 5: dev ...
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0answers
19 views

Proxying request from nginx docker container to tomcat docker container (all inside Vagrant VM)

Running a Vagrant (virtualbox) VM with two docker containers inside, nginx and tomcat. Want to host static files in nginx container and proxy web requests to the tomcat container. I've read up on ...
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0answers
13 views

Broadcomm 53393 ethernet switch [on hold]

Anyone worked on this before ? Tried to work with very limited documentation. Need someone who has past experience or can point me to a reference source.
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0answers
25 views

Solaris 5.10 telnet connection closed by foreign host

I try to connect to a Solaris 5.10 server using telnet, but I only see: $ telnet xxx.xxx.xxx.xxx Trying xxx.xxx.xxx.xxx... Connected to xxx.xxx.xxx.xxx. Escape character is '^]'. Connection closed by ...
0
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0answers
13 views

Dnsmasq , redirect all but google.com

My router uses dnsmasq. In my dnsmasq.conf, I write: address=/#/127.0.0.1 in order to resolv any domain to my local server. It works. Now I'd like to make possible to join www.google.com. Any other ...
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31 views

changing IP for specific host DNS entry in BIND for dedicated server [duplicate]

changing IP for specific host DNS example (test.com) entry in BIND to point to different IP let say my 2nd dedicated server IP. I have dedicated server hosting on data centre running BIND9, connected ...
0
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1answer
31 views

Captive portal detection by Apple Oses, iOS 'splash CNA popup' does not show?

I built a captive portal (Linux Debian router), providing a WifiHotspot based on hostapd and iptables rules ( like this: ...
0
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1answer
9 views

Connection from application on network share fails

EDIT: I tested some more...If I copy nslookup from the Windows directory to my mapped network drive, it cant' resolve hostnames: H:\nslookup dbserver (null) UnKnown Address: 192.168.0.195 If I ...
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0answers
12 views

how can you use routers as a repeater [closed]

hi i am new to networking i am moving to new house in a few months and i need to know if i can use a router as repeater without custom firmware. if it helps will be using this moderm/moderm router ...
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0answers
18 views

KVM assign host VLAN to guest [on hold]

Let's say we have the following setup: --------> KVM host 1 -----------------> Guest 1 - vlan1 | vlan1 - 10.10.10.1 - 10.10.10.3 Switch / Router ...
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11 views

response ping is expired in transit [duplicate]

I've configured my debian's network on virtual box: auto lo iface lo inet loopback auto eth0 allow-hotplug eth0 iface eth0 inet static address 192.168.56.15 netmask 255.255.255.0 gateway ...
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0answers
22 views

How do websites know how many packets the user can handle [closed]

how do services know how to not send too many packets. e.g. netflix. When you're streaming how does it know how many packets you can handle without your internet crashing. If you chose to watch in HD ...
0
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1answer
20 views

Import a vm image to a new host machine with virt-manager

I need to recover a guest machine with Windows 2003 on a new host server on Centos 7 with virt-manager. I've shut down a guest machine and simply copied its .img file from /var/lib/libvirt/images. ...
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1answer
49 views

Two network adapters for a machine to double the transfer speed [on hold]

i am new to this. In my scenario, i have a desktop pc running windows 7 and planning to set up a local web server using xampp for big file transfer in the lab. The problem is that,there are 80 ...
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0answers
28 views

BGP routing table [on hold]

I'm currently trying to understand how BGP works. Unfortunately, I'm running on an OSX system and tried to install some BGP simulation, i.e. Core, Imunes, psimulator2, c-bgp, for hours without ...