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

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Can't Bind IP Address To Machine [closed]

I have the following IPs but I can't bind them to my machine I am getting errors. Here are the IPs I own. 2607:5300:60:1234::/64 - Came with server 158.69.123.123/29 - ...
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2 views

Can't connect to socket listening on 127.0.0.1 but works for 'localhost' [migrated]

I have a clean install of Windows 10 Pro x64 and I'm trying to run postgresql server on it. It used to work perfectly on Windows 7, but Win10 is behaving really weird: if I configure postgres to ...
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0answers
40 views

Understanding /proc/net/dev

In a Linux container I ran firefox and downloaded a large file. To my surprise after inspecting /proc/net/dev Interface| Receive | ...
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0answers
27 views

Can't connect to the mapped drive in the server [closed]

I'm using windows 2012 server and the client is windows xp. There is no user in the server who is in the client, so I used the user in the server who has the authority over the server with password ...
0
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0answers
21 views

Server is using MAC address of eth1 when connecting to eth0?

I have a server with 10.10.1.1 on eth0 and 10.10.2.1 on eth1. The routing table has 10.10.1.254 as it's default gateway. There's a freenas box on 10.10.1.200 which keeps reporting that 10.10.1.1 has ...
0
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0answers
25 views

Bridge server for connecting two databases?

I'm in a bit of a pickle. I currently have 2 database servers. One is hosted in the US and is online on the internet. The other is local, working only on LAN and external connections are not allowed. ...
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0answers
14 views

Accessing remote application from a network VIA VLAN

I have a VLAN network (target network), where I'll connect to a remote system from my network and take remote desktop and work. So my machine is connected to the target network through VLAN. My ...
0
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2answers
43 views

How to log all inbound connections on Windows server

I need to log a summary of all inbound TCP connections on a Windows 2008R2 server, but only including the Source IP, Source Port, Destination IP and Destination Port. I do not want to log the payload ...
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0answers
11 views

Redirect destination or rewrite destination in shorewall

My shorewall firewall running on debian nicely. I have 2 server outside from my network. All my client access server A some reason i want client access to server B without changeing ip address or dns ...
0
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0answers
32 views

Debian Openvpn port closed

Newbie in linux! there is already similar questions are asked here, but the solutions are not working for me. can somebody help me with this issue: I have been installed openvpn server on debian 8.1 ...
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0answers
132 views

Application Crash after inactivity Application Event ID: 1026, 1000, 1005, 1001. Security Event ID: 5061 [on hold]

For several months now I have a problem with my 3rd party application. After some inactivity on application, application crash. What I checked: Network. Updates (without servers, on PC and server ...
0
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1answer
22 views

Issue with bind_ip on mongodb mon Virtualbox

I have been struggling with mongo bind IP for a while , I think this is the time to shout for help. I am using hostonly network 192.168.56.0/24 . I have 4 boxes. 3 boxes for mongo ...
2
votes
1answer
47 views

pfSense can't access https website

I have just installed pfSense on a PC Engines APU1D4 to evaluate as an alternative to a Soekris 5501 + OpenBSD based setup, I have a PPPoE WAN configuration. The pf rules, NAT and PPPoE ...
2
votes
1answer
30 views

Getting Bonding Status in CentOS 7

In CentOS 6 I had my trusty /proc/net/bonding/bond0 that would give me the following information: [kbrandt@ny-tsdb01: ~] cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.7.1 (April 27, ...
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0answers
38 views

Access OpenVPN Clients

I'm currently having some dificulties configuring my network to a new openvpn connection. I'll try to be clear as possible. This is our network diagram. I have a OpenVPN Server installed on ...
0
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3answers
34 views

Easy way to convert PC within network to image server? [closed]

Maybe the question is a little misleading, so here goes. Without installing IIS or any other web server, is it possible to "host" images on a Windows 7 PC? Assuming my laptop in the network is called ...
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0answers
13 views

How to bridge VIP interface on Ubuntu

I am running Ubuntu 14.04 on OSX guest through VB 5.0 Rooter Gateway is 192.168.0.1 Vbox0 is 192.168.56.1 Ubuntu has now 2 interfaces configured: # static iface eth0 inet static address ...
1
vote
1answer
25 views

Server abandons set static ip and returns to dhcp given address

I have a few virtualized (ubuntu 14.04 LTS) servers under KVM that I'm trying to move to an ip block other than the one reserved for servers under dhcp (the 10.10.2.0/24 block). I change the ip and ...
0
votes
1answer
27 views

Need to download Outlook files from webmail, no Outlook synchronization available

We recently moved our DNS from GoDaddy to our own internal server, which implies all the necessary DNS records have also changed. We had an IT guy backup all Outlook files before we changed DNS hosts ...
0
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0answers
41 views

Route Print shows Interface as “c”

We are having issues with servers that are losing their network access after reboot. When I was looking at route print, I noticed under the Interface it says C. Any idea what this is? Currently ...
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1answer
97 views

How can I access a URL through it's IP address? [closed]

http://example.com has the IP address 93.184.216.34. From what I've read about IP addreses and ports, this leads me to believe that appending the port 80 to the end of it (93.184.216.34:80) should ...
1
vote
1answer
36 views

Possible route, but denied?

If ISP (A) can be routed to ISP (B), and ISP (B) can be routed to ISP (C) and vice versa, then why ISP (A) and ISP (C) can't be routed through ISP (B) to each other? The packets are routed like this ...
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1answer
23 views

Block redirected port from external access using ufw

I have an application that uses ftp. I redirected the 21 port to 2221. But I see that 2221 is accessible from external even though it is not specified in ufw rules. So I want to block 2221 from ...
0
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0answers
48 views

Setup vNetwork Distributed Switch VLAN + pfSense on ESXi Single Host with 3 NICs [closed]

I`m stuck trying setup VLAN on the combo vCenter using Distributed Switch + pfSense, my setup: Single Host ESXi with 3 NICs (LAN + WAN + DMZ - last one is only an isolated subnet for servers) ...
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0answers
18 views

How can I enable two interfaces on my machine

How can I enable two interfaces on my machine I tried to enable eth1 via this command sudo ifconfig eth1 133.130.60.36 netmask 255.255.254.0 gateway 133.130.60.1 up; sudo route add default gw ...
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votes
2answers
37 views

Multiple protocols on the same port [closed]

From my understanding, Facebook Messenger uses 443 for both HTTP and MQTT (or whatever protocol they may use now) traffic. That seems to be a good strategy, as in some very constrained networks only ...
0
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0answers
19 views

Is iperf valid to measure network performance?

We are investigating performance issues in one of our software deployment between our application servers (Windows) and our Redis instances (Linux). On a 10 Gbits/s link single TCP connections can ...
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votes
1answer
28 views

What Factors that affect ping to a dynamic IP? [closed]

If i'm going to test the ping between me and my friend, will interleaved mode that applied by cabinet would affect his connection and expect an increase in the latency/ping to his machine regardless ...
0
votes
1answer
25 views

Send proper UUID over tcp

I have a small ingest TCP server that should accept a device UUID as a first message, which is only 16 bytes. I'd like to test this manually from terminal, but sending a string won't work, since it ...
0
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0answers
30 views

Use extra firewall to filter WAN traffic before reaching UTM?

I am running a simple web server behind UTM, only port 80,443 is open. However almost 80% of the traffic coming through WAN is trouble. Mostly are port scanners / sniffers or systematically querying ...
0
votes
1answer
45 views

Linux multiple gateway with single desination

I have a very strange issue. First I will like to explain you about layout of my system. I have one server which will connect with 2 motorola radio as USB but they are actually network interface and ...
12
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3answers
1k views

Why is CAT rating not applied to switches?

I see patch panels all come rated as CAT5e, or CAT6 (and so on). I understand the difference between CAT5e and CAT6 cables, more stringent interference shielding, etc. What I don't understand is why ...
0
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1answer
44 views

Fluctuating ping to a certain ISP backbone

There's a central server that located 300 miles away from my country. but when i test the ping to that server or their ISP backbone, i get inconsistent or a fluctuated pings from there. i live in ...
1
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0answers
28 views

VM apt-get install - network is unreachable [migrated]

I have a Vagrant backed Ubuntu VM which I'm trying to do some performance testing on. In order to do so I'm trying to install gdb When I run apt-get install I see the following: ...
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0answers
6 views

ASA 9.1 NAT Rule issues

I added this NAT rule on my 5510 ASA object network SHF-NY-DC01 host 192.168.1.50 nat (Inside,Outside) static interface service tcp ldap 6699 access-list inbound extended permit tcp any object ...
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3answers
55 views

how to detect remote switch speed and duplex? [on hold]

We have a linux (RHEL) system which will be deployed in unknown networks. To support old networks we want to have autoneg configurable. how do you how detect if remote switch is autoneg on|off, and ...
2
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0answers
21 views

IP Forwarding Configurations [closed]

I am testing ip forwarding to recieve external connections from my computer at home. I did the following from my router settings: Turned off firewall of router and fedora, done forwarding settings, ...
0
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0answers
22 views

amazon server using RedHat EL 7 on port 3306 so that i can access mysql database remotely

I want to remotely access mysqld on port 3306 but when hen i telnet from public ip address i get a connection time out error. Whats happening here. But within the server telnet is working just fine ...
0
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2answers
43 views

server1 & server2.. because w/same firm.. ssh connection shows private ip.. how to enforce public ip being using during ssh's?

server1 has a private and public ip. server2 has a private and public ip. generally.. if server1 to ssh to server2 .. server2 would recognize server1 by it's public ip. but because both servers are ...
0
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0answers
25 views

Restarting network on Ubuntu 14.04 host running lxc

I know /etc/init.d/networking restart isn't supposed to work on Ubuntu 14.04 but I altered the script that it works. It always worked on all the Debian distributions I have used before and I do not ...
3
votes
1answer
69 views

How do I prepare local domain controller for uplink outage

My site will be losing connectivity to the rest of the network for a few days up to a week. When we've had outages before I find we get delays browsing local shares and very long delays logging in. ...
0
votes
1answer
59 views

How is device to send a response packet selected

I read that when kernel determines a source ipv6 address for the packet, it takes into consideration what interface will be used to send the packet, (http://www.rfc-editor.org/rfc/rfc3484.txt, ...
0
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0answers
14 views

How does NAT work with more than 2^16 devices? [duplicate]

According to this article, NAT keeps track of which devices to route responses to by specifying a response port that it listens on. For example, when I make a request from a NATted computer, my router ...
0
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0answers
33 views

How to wire two wall plates together to form pass through? [migrated]

Pretty simple question I think, I'm just not sure how to do it. My cabling experience is one marathon weekend of rewiring a server closet for a 4 story building, but we had a lot of help and that was ...
0
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1answer
56 views

Azure VM outbound IP

Does anyone know what controls the outbound ip address of a VM in an ARM deployment? The deployment I am working on has only a single public ip which is assigned to a load balancer. Some VM's are ...
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3answers
35 views

Configuring Multiple NICs on Windows 2008 Server for Network Backup

I have a IBM x3650 M4 running Windows 2008 Server and it is used as the DNS Server and the File Server. I also have a Windows 7 machine on the same network configured as the "backup server". I am ...
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0answers
4 views

How to force Vagrant to have a single, bridged, network interface [migrated]

Using vagrant 1.7.2 on OSX (MacBook Pro), Ubuntu 14.04 guests, VirtualBox 4.3.26. Mac is connected to the world via standard WiFi interface. I want the Vagrant boxes to use the bridged network on the ...
0
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0answers
59 views

DRBD server not starting - error in creating netlink socket

I have a newly configured DRBD-Cluster 8.4.5 on 2 VM running ubuntu 14.04, following this example: http://geekpeek.net/configure-drbd-ubuntu/ Unfortunatelly I can not start the service. It seems to ...
0
votes
1answer
79 views

Bind docker container ports only to specific outside server address

This is the first time i address such a network "problem" to solve with docker and i need some inputs. This is my situation: Ubuntu 14.04 running NginX, ufw as firewall and docker containers to ...
0
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1answer
41 views

Why is my DHCP pool not working?

I'm trying to create a configuration and it's doing most of what I want it to do, but the DHCP pool isn't assigning addresses. Here's the config so far: enable config t hostname xxxxxx enable ...