A computer network allows sharing of resources and information among interconnected devices.
2
votes
2answers
30 views
Firewall distro to share bandwidth evenly between connected users
I'll first describe my situation.
I have a network made by a central x86 server/firewall, 5 access points and 2 unmanaged routers in between.
20 Mbits download and 1 Mbit upload ADSL.
Upload is ...
2
votes
2answers
35 views
rsync certain files, excluding the rest, ignoring .svn/ directory, recursively
I'm using rsync to copy some files from a share to another.
Recursively, I need to:
Delete files at destination that were removed from the origin
Only sync php and js files
Exclude every other file ...
2
votes
0answers
21 views
How to setup networking for Linux Mint - VM when host machine uses a PAC file
My host is a Windows 7 x64 machine. The office network uses a PAC file for the LAN settings. So, under Internet Options -> Connections -> LAN Settings, I have Use automatic configuration script with ...
0
votes
1answer
29 views
Renamed network interfaces [duplicate]
A recent update on my Mint system caused the eth1 to end up being renamed as eth3 and therefore breaking all my firewall & forwarding rules. How does this happen? How can I enforce the network ...
0
votes
4answers
40 views
Setting a network hostname doesn't work
I'm on a Kubuntu 11.10 and I'm having trouble setting a hostname on the network.
I already tried changing send host-name "myhostname" in /etc/dhcp/dhclient.conf or /etc/dhcp3/dhclient.conf with a ...
1
vote
2answers
41 views
Checking if I can reach some ports from my computer
Is there a terminal command or something on OSX that I can use to test if I can reach some ports on a remote server?
I know these ports are reachable on that server, because I can access them from ...
1
vote
1answer
28 views
How to write a script to read wifi SSID and password from USB drive at boot up and auto logon to wifi network
I have an embedded system that is running Debian. I want to be able to provide wifi network SSID and password information via a USB thumb drive. That way I can easily deploy it to any wifi network.
...
2
votes
1answer
27 views
Debian Networking Issues
I recently installed Debian Wheezy (gnome) on my ThinkPad T60. It was going well, until about 2 days ago when suddenly my machine stopped connecting to the web.
I can connect to my router, I can ...
1
vote
1answer
25 views
Setting up network cards on FreeBSD
I just installed FreeBSD 9 on a new laptop and I'm having some trouble getting the network cards to work. Presumably the file representing the cards is in /dev, but where would the configuration files ...
2
votes
1answer
40 views
“provide net” in gentoo init script doesn't work as I thought
I'm running into a strange (to me) problem.
I'm running a gentoo with two net interfaces: enp5s0 (wired interface) and wlan0 (wifi). When I try to run a program, for example openvpn, from its script ...
1
vote
2answers
48 views
Auditing Linux: tell me to what IPs a connection was established
I need a command, or something that runs as a cron job, that logs what IPs my machine is communicating with, what ports, and what process did it.
0
votes
0answers
28 views
QEMU communication between a process on a host and a process on the guest
I am running Ubuntu virtual machine using QEMU.
Right now I am facing a problem how to send IP packets from the host OS to the guest OS over some virtual network interface throw QEMU.
Virtual ...
0
votes
0answers
33 views
Networking not working on ubuntu server 12.10 on B75MA-P45 mobo
Just got some new parts to but together a local dev server with ubuntu server 12.10 and I can't get networking working.
I have an airport extreme for my router and it works find with centos boxes I ...
2
votes
2answers
62 views
Get network information through Ubuntu Terminal
Is there a command where, when entered outputs information such as:
If the network connection is wired or wireless
if it is a wireless network, the name of the wireless network
How strong the signal ...
2
votes
0answers
55 views
Why is my download speed a lot lower in Linux than other OS?
I had Windows 7 installed on my PC and torrents (all legal) downloaded at a rate of 2MBps. I used uTorrent.
I now have Kubuntu 13.04 installed and have kTorrent, which can only achieve speeds of ...
2
votes
0answers
50 views
Why is Gnome Shell sending data over my wireless network?
I have been checking which processes under my Fedora Linux 18 are using my upload bandwidth and I occasionally see that Gnome Shell is one of them. Why should it be sending data over my wireless ...
2
votes
0answers
71 views
Virtualbox NAT + Host-Only Adapter
My host is Ubuntu 12.04 and guest is a Debian squeeze (LAMP server). I want to allow the host to connect the guest. and allow the guest to connect the internet. The guest should not be enabled from ...
0
votes
0answers
28 views
PBX randomly loses network connectivity and restores itself
I'm using a QBX appliance, which is just a microATX desktop system with FreePBX connecting to asterisk and some other slapped together stuff running on CentOS 5.4. It's horribly out of date (which I ...
1
vote
1answer
55 views
Unable to make sshd start at boot time on centos 6.4 . It starts ONLY after I login from console
I have installed centos 6.4 on a desktop and wanted to access it mostly remotely. For this, I tried ...
2
votes
3answers
75 views
SSH is suddenly not working anymore: “Write Failed:Broken Pipe”
I use a macbook pro at home and regularly ssh into the machines at my lab. For the past 3-4 days however, whenever I SSH into the machine in the lab, I get a Write Failed:Broken Pipe error, hardly ...
2
votes
1answer
74 views
Networking and Samba from a quest OS running on qemu
I'm trying to test some software on a big endian system to ensure compatibility. My plan is to use qemu on Ubuntu 12.04 to emulate a MIPS system. So far I've been able to create the quest system ...
1
vote
0answers
33 views
PGP keyserver and proxy firewall issues
I am not sure this is a Linux question directly ... I use Arch Linux which uses package signing. This requires me to download a set of pgp keys with the pacman-key program. This works off the ...
0
votes
1answer
107 views
Ubuntu: wire network is not stable and must restart network-manager periodcally
I don't know why my wire network now is not stable. After a short time of using, maybe 30 minutes, 15 minutes or maybe just 2 minutes, my network is down. When my network is down, I must run this ...
-1
votes
1answer
17 views
How to check the ports of Main and dependent Programs [closed]
we can see the ports using the Netstat -tulpn, e.g netstat -tulpn |grep program.
But what is there is program that has multiple modules dependent on main program. How we will know what ports are they ...
2
votes
0answers
224 views
Ubuntu : after upgrade, wire network is unstable
Yesterday I have upgraded to Ubuntu 13.04. After I upgrade, I meet a serious problem with network. (and I use wire network), that my network is unstable. After a short time using, it's often ...
1
vote
1answer
77 views
What's the best way to have a 169.254.169.254 address local to my laptop?
I want to emulate the Amazon EC2 metadata service on my local system for testing. In EC2, this runs on 169.254.169.254. I understand that this is the designated range for pseudorandom local addresses ...
3
votes
4answers
72 views
How to check whether firewall opened for a port but not listening on the port
We will be deploying a new application to a Server and the application will be listening on port 8443. We have asked Network team to open the firewall for the port 8443 on that server before deploying ...
1
vote
1answer
66 views
How do I route different users over different OpenVPN tunnels in Linux?
The setup:
I have multiple, static-key OpenVPN client/server configurations, labeled "client1", "client2", and "client3" with server/client IPs 10.10.1.1/10.10.1.2, 10.10.2.1/10.10.2.2, and ...
1
vote
0answers
36 views
Determining network interface names in NetBSD
Does anyone know if there is a way to determine what a network interface will be called in NetBSD if you know which NIC/driver you will be using before hand?
I'm trying to automate parts of a NetBSD ...
2
votes
3answers
66 views
Detect which interface traffic to an IP address goes through
I'm making an script, and I need to detect in what interface is the traffic of an IP going through. This is because in the arch, an IP address is attended only for one of four NIC's, but can be any of ...
0
votes
0answers
32 views
No wireless network for the first 30 seconds
A few days ago, I managed to get my wireless network working on ArchLinux.
My network card is:
~/ lspci | grep Network
03:00.0 Network controller: Broadcom Corporation BCM4321 802.11a/b/g/n (rev 03)
...
1
vote
1answer
56 views
Cannot connect to belkin router through linux mint
I recently installed Linux Mint 13 alongside windows 7. I have a Realtek RTL8191SEvB Wireless Card. This work's fine with any router. However when I try to connect to a Belkin G Wireless Router it ...
1
vote
1answer
64 views
Creating an Alias to Loopback Interface with an Arbitrary Name
I have an odd problem that seems simple enough but has evaded me thus far. I am attempting to support a legacy application that has a hard-coded ethernet device name ("eth0"). This hard-coding, I am ...
4
votes
2answers
46 views
wlan number assignment
How or where does Linux determine the assignment of a network device? Specifically, wlan0 or wlan1 for wireless USB devices.
I plugged in a TP USB wireless a while ago, and it was assigned wlan0. I ...
3
votes
1answer
44 views
How does irqbalance determine which package to use?
irqbalance --debug shows the following:
Package 0: Core 0, 2, 4, 6, 8, 10, 12, 14
Package 1: Core 1, 3, 5, 7, 9, 11, 13
When I run network applications, it seems like IRQs are being handled by ...
0
votes
0answers
52 views
Not able to configure Squid3 proxy server on Ubuntu Server 12.04
When I install Squid3, I configure my network on squid.conf as acl localnet src 192.168.1.0/24, then I configure proxy settings in my browser. After that it stops the browsing and a message displays ...
1
vote
0answers
107 views
Create adhoc network when disconnected from network
I am using ArchLinux and want to create an AdHoc network automatically when the connection to the home network drops (or the home network can't be connected to on startup). How can I achieve this?
I ...
0
votes
0answers
16 views
Can I run hostapd in a virtual machine hosted in a windows system?
I would like to know if it is possible to run any linux/unix distribution with hostapd in a virtualized environment.
My idea is to host a small virtual machine, which will use my Windows Host ...
1
vote
1answer
84 views
Manage network connections on Arch Linux
I'm setting up an arch linux system(latest version) on my laptop. It already boots and configuration for network it's done via systemctl. Following instructions on the wiki I configured the ethernet ...
3
votes
2answers
78 views
Scan for users of networks
If I am in a room where several people are using devices to connect to different networks, how can I scan for them? (for the users)
They are not necessarily logged in the same wifi as me.
I know ...
0
votes
1answer
30 views
ixgbe: increase rx performance
I have an Intel 82598EB 10GBE NIC.
I need to receive traffic without packet loss.
Data rate is 4-5 Gbps, packet size is 1500-9600 bytes.
I had already configured smb and irq affinity.
I also tried ...
1
vote
0answers
68 views
nas4free server can't access local network
I'm not a linux/unix/freebsd expert. I'm a Microsoft .NET developer that knows Windows pretty well. Please bear with me :)
I'm trying to configure an old desktop machine as a NAS device with ...
1
vote
0answers
41 views
How to specify which interface an application uses?
Imagine this example: you have direct access to the internet on eth0, and you have a VPN on tun0.
You want one application to access the internet directly through eth0 (using X public IP address) and ...
0
votes
1answer
192 views
Transfer 150GB of files from an old MacBook Pro with Ubuntu 13.04 Live DVD
My girlfriend's old MacBook Pro 2009 (5,4) stopped working. I have tried several times to reinstall OS X, but could not do so. There appears to be something really really wrong with the OS.
Since she ...
2
votes
2answers
57 views
Can I have a bridged interface without an IP?
I have 2 NICs: eth0 & eth1 on a host OS which runs some VMs (LXC) under it.
The hosts eth0 is connected to a private network and configured as the primary interface.
The hosts eth1 is connected ...
0
votes
2answers
40 views
Detect systems on which a particular application is running in a network
Is there any way in Linux to find out in how many systems the same (one particular) application is running in a network? and if so, can we figure out IP address of those systems?
Update : All ...
0
votes
1answer
35 views
What do I need to setup a linux box as a proxy to access the network?
At the minute I have all my machines connect directly to my isp-supplied broadband router. I want to make sure my machines are behaving correctly so I wish to test this by sniffing the traffic of ...
0
votes
0answers
18 views
Network has been disable after update on Fedora 17
I am having some technical problem on Fedora network. After I have done the update on my Fedora 17, I notice that the desktop GUI theme has been revert back to Gnome 2 (existing one is Gnome 3) and my ...
2
votes
1answer
50 views
Linux Mint Stops Network File Transfers to Load Data into RAM
I've never seen or heard anything like this before, and I can't find anything else online that is at all similar.
I've upgraded my network to gigabit and have been transferring large files lately ...
0
votes
1answer
50 views
Enable kernel module for VPN
I'm trying to turn on modules for VPN so I followed this tutorial to compile new ubuntu kernel 3.8.6 .
But the features I've turned on using make menuconfig seem not to be enabled.
(the features I ...
