A computer network allows sharing of resources and information among interconnected devices.
2
votes
1answer
130 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.
...
4
votes
3answers
700 views
How do Linux drivers work and where do I find them? (esp. NIC driver)
I am wondering how a driver functions under Linux. Are drivers a single file that can be edited? Is there a list of current drivers in use or is there a different place to find them for each device?
...
4
votes
2answers
419 views
Debian Wheezy + Hostapd 1.0 + ath9k randomly failing
I got a problem with my soft AP.
I got an old PC running as router which has 3 NIC and 1 wifi PCI card TP-Link L-WN751ND. This box runs Debian Wheezy, hostapd, dhcpd etc. The problem is that AP ...
1
vote
2answers
59 views
Why there are two ifcfg-eth0 file but in different directory
I am trying to understand why there are 3 ifcfg-eth0 on my CentOS 6.4 server, they are hardlinks to the same file looks like.
Anyone knows why ?
$ ll /etc/sysconfig/network-scripts/ifcfg-eth0
...
2
votes
0answers
60 views
Change ip addr label in Linux
How can I change the eth0 zero to eth0:1 using ip addr without deleting.
When I run
ip addr show eth0
Here is the output
2: eth0: mtu 1500 qdisc mq state UP qlen 1000
link/ether ...
1
vote
2answers
581 views
SCTP support for Linux kernel 3.3.4-5.fc17.x86_64
I'm using Fedora 17 64-bit version, with Linux kernel version 3.3.4-5.fc17.x86_64.
I installed lksctp using yum.
sudo yum install lksctp-tools.x86_64
When I try to run
sctp_status -H 127.0.0.1 ...
-1
votes
0answers
22 views
Sierra wireless aircard 890 (Mobile broadband/ express card), how to either recharge and check balance of money
I'm using a mobile broadband, the Sierra wireless aircard 890 (express card) for 3G mobile connection. Everything is ok, the card's automatically recognized. But one thing that I can neither recharge ...
2
votes
1answer
1k views
Cannot connect to fedora on port 80
I can't access to my local sites on a fedora machine from ubuntu. In firefox I get this error: The connection has timed out
In fedora iptables I added this line:
-A INPUT -m state --state NEW -m tcp ...
3
votes
1answer
145 views
Using source routing (LSRR) - any ideas?
What I want to do is conceptually very simple, but I can't find any information or help about how to go about doing this.
Basically, I want to configure my networking to use source routing (LSRR). ...
1
vote
1answer
81 views
Why does my 3G key blocks my eth0 interface and how to solve this?
I have a linux PC (Debian Squeeze) which is located into a room in another town (I cannot physically access to this PC from where I am)
This PC is linked to internet using an internet box. I can ...
1
vote
1answer
187 views
Mint: equivalent command line call for airplane mode
OS: Linux Mint 14
Can someone suggest how to turn on airplane mode from command line instead of using the GUI?
Also can someone list what all are turned off by enabling airplane mode?
or how to turn ...
0
votes
1answer
55 views
Samba connection slowness after ip change
we have encountered with a problem when we chaged the samba server's ip address. There are so many OS varies from Windows,GNU/Linux, Solaris and IBM.
The samba server is running on SOlaris. And all ...
2
votes
1answer
70 views
Can iptables be used to convert a single-homed host into a NAT server?
Given: I have a machine (HostA) with only one NIC which has Internet connectivity. I have another machine (HostB) with one NIC on the same switch. HostB is not configured for Internet access yet. ...
2
votes
1answer
282 views
enable networking inside a freebsd jail
So I'm mostly a linux newbie itself. Let alone freebsd, so please bear with me. I just need some very basic clues to get this to work. I use FreeBSD 9.1 64-bit from the list here.
On my freebsd ...
0
votes
1answer
65 views
Remote linux using vnc and gdm without login
I remote linux server by using vnc and gdm. This link is very good but I would like to remote linux server using vnc viewer without login.
May I know your suggestion?
16
votes
10answers
25k views
Streaming to an Apple TV (3) from Linux
Alright, here is the setup:
One apple tv 3 in the living room, connected to the network (wired).
One pc running Linux (Arch Linux x64, AMD), containing all music, movies and series (wired).
Now I ...
2
votes
2answers
50 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
1answer
143 views
Fedora16, ekiga just works in superuser mode
I've got a fedora16 running and I'd like to use ekiga as a softphone.
Now I'm running into some problems.
Starting ekiga as a normal user gives me
could not register (globally not acceptable)
...
0
votes
1answer
846 views
How to setup VLAN on same subnet as Ethernet ?
I have a physical NIC with dev name eth0 with ip 192.168.1.2 and gateway 192.168.1.1 and I want to setup a VLAN with ip 192.168.1.x and same gateway as eth0.
Setting up the VLAN runs smoothly and I ...
2
votes
0answers
54 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 ...
2
votes
1answer
469 views
Connection ec2 instance operation timeout error using ssh
After creating a new instance,I am trying to access my instance like below:
ssh -i private_key.pem root@my_instance_public_domain
but the operation is timing out,I have updated the private key file ...
0
votes
1answer
41 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 ...
1
vote
1answer
226 views
Guest OS Ubuntu 12.04 no network connection
Recently added a new *.VDI image with Ubuntu 12.04 to my existing VirtualBox. The machine hangs with a "Waiting for network configuration" error, eventually times out after 60 seconds and boots in ...
2
votes
1answer
39 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
2answers
70 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 ...
3
votes
1answer
200 views
Reverse ip lookup
I was wondering if it is somehow possible to lookup the ip of a machine I ssh'd into from. This is the scenario, I'm at home, I've VPN'd into a server that I ssh into constantly in the office but now ...
0
votes
1answer
63 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 ...
2
votes
0answers
132 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 ...
4
votes
1answer
687 views
Ubuntu Linux Router: Set outbound NAT on 2 interfaces
I'm setting up a router using Ubuntu 12.04. I need my router to route between our internet modem and my client's network, for which we're given one IP address.
The box has 3 interfaces:
eth0 - ...
3
votes
1answer
1k views
How to handle network interfaces on crunchbang linux desktop?
I have installed crunchbang statler which is based on debian squeeze.
By default there is network-manager-gnome 0.8.1 (/usr/bin/nm-applet I believe) running with an icon near the clock/tray area.
I ...
3
votes
1answer
88 views
Is there a way to renice the network stack?
I have an ARM Linux board that is a router to 16 other boards. When all these download their updates via the router, the network routing effort starves the user space so that a software watchdog (and ...
3
votes
1answer
699 views
Is berkeley packet filter ported to linux?
I am doing some research to figure out what distro's of linux contain kernel packet filtering and are compatible with BPF.
http://kernelnewbies.org/Linux_3.0
http://lwn.net/Articles/437981/
These ...
1
vote
1answer
131 views
Linux tools to choose suitable Cisco ASA 5500
I have a linux webhosting server which attracts DDOS attacks.
I want to use Cisco ASA 5500 Series Adaptive Security Appliances to protect the linux server from them. I know there are many factors ...
1
vote
1answer
382 views
PPTP ping client to client error
I installed pptp server on a centos 6 64bit server
PPTP Server ip : 55.66.77.10
PPTP Local ip : 10.0.0.1
Client1 IP : 10.0.0.60 centos 5 64bit
Client2 IP : 10.0.0.61 centos5 64bit
PPTP Server ...
2
votes
3answers
4k views
Network interface eth0 not up at start on Debian 6
I have Debian 6.0. In my interfaces file (/etc/network/interfaces) I have the following lines:
auto eth0
iface eth0 inet static
address 192.168.0.8
netmask 255.255.255.0
gateway 192.168.0.1
...
4
votes
4answers
1k views
“internet connection checker one-liner”
With this I can check, that there is "internet connection". if there is no "internet connection" (succesfull pings to this 2 places), then it waits 600 sec, then it runs along:
ping -W 1 -c 4 ...
1
vote
1answer
30 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
3answers
803 views
Static DNS setup on client of shared internet connection
I've 2 linux computers, one redhat (client), and one ubuntu (set up with shared internet connection as described here)
At the moment, on the wired connection between the computers, I can ping the ...
2
votes
2answers
1k views
DSL connection not working in Ubuntu 10.04
I use a wired PPPoE connection to connect to the Internet. What I need to do on Windows to connect to it is put in static IP address, gateway, subnet mask and DNS servers for my LAN card. Next I have ...
2
votes
1answer
71 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
0answers
161 views
How can I renew lease when it kept printing eth0 lease expired x seconds ago?
My guest VM cannot get an IP address from my host.
It keeps printing:
eth0: lease expired x seconds ago
I've tried to start dhclient -r and dhclient and restart eth0 to no avail, see here for ...
0
votes
1answer
2k views
VMware Player on Linux, bridge networking
I am having trouble with VMware Player 4.0.3 for Linux. I am trying to run a Linux virtual machine guest (from the Linux host), but am unable to successfully get an IP address on the guest with bridge ...
1
vote
1answer
924 views
How to enable WIFI on VMWare Fedora 12? (It's detecting and working fine on Windows 7)
I am new to Linux. I have Fedora 12 running on my VMware. I am unable to see any options to enable WIFI connection on Fedora. When I am accessing Internet through WIFI and its working perfectly fine ...
1
vote
2answers
57 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
47 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 ...
11
votes
5answers
2k views
What is using this network socket?
I'm trying to use NTP to update the time on my machine. However, it gives me an error:
host # ntpdate ntp1.example.org
10 Aug 12:38:50 ntpdate[7696]: the NTP socket is in use, exiting
What does the ...
7
votes
1answer
4k views
Why are incoming packets on a TAP interface seen with tcpdump but not with iptables?
A program injects packets on a Linux TAP interface (these packets are coming from a virtual machine). Specifically, these are DHCP requests (so they're UDP). I can see the packets with tcpdump but not ...
2
votes
1answer
41 views
switch network on and off of a virtual remote server
I need to perform a testing panel which disconnects a network cable and connect it again on a specific virtual server via a php web page.
I found that ip & ifconfig can disconnect a network, but ...
-1
votes
1answer
95 views
How to SSH apache user from a remote guest server on VirtualBox with host-only network?
I have two CentOS virtual machines on VirtualBox . one of them let's say CentOS-1 holds my Web application code. Second is CentOS2.
I have two network connections between these two servers : Bridged ...
2
votes
2answers
89 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 ...
