A computer network allows sharing of resources and information among interconnected devices.
0
votes
1answer
13 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
26 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
529 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
12 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
138 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
69 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 ...
2
votes
1answer
340 views
I can SSH and HTTP, but not ping or access particular UDP services over my LAN
So I've encountered a weird problem when trying to set up a Linux server running a variant of CRUX Linux. I am trying to configure it to be a Teamspeak server, but no clients can connect. The ...
1
vote
1answer
162 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
50 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
40 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
201 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
61 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?
15
votes
10answers
23k 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
33 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
41 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
1answer
136 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
568 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
22 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
120 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 ...
2
votes
1answer
413 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 ...
1
vote
2answers
172 views
Slow network with e1000
I've got a problem with my network speed. I sometimes have full download speed (i.e. 5 MB/s, which is about my max. internet dl-speed) and sometimes comparable slow speed (about 0.5 MB/s). This is ...
0
votes
4answers
41 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 ...
3
votes
1answer
264 views
Automatically acquire new IP address in new network
I'm running a Centos virtual machine on a laptop using a bridged network connection to avoid double-NAT issues, with the address assigned via DHCP. This works fine until I move the laptop to another ...
0
votes
1answer
32 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
176 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
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
2answers
42 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
35 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.
...
3
votes
1answer
189 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
51 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
75 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
1answer
70 views
Is port knocking good for a last chance when everything is locked out via the Firewall?
Based on this question: "Safe mode" on Linux? - So there is a configured knockd on a server, and a wrong firewall command was given out, so everybody got locked out from the server via ...
4
votes
1answer
615 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 - ...
5
votes
1answer
2k views
How to configure external IP addresses for LXC guests?
I'm exploring the LXC features in Ubuntu 12.04 and I really want to set up a network like this:
client1: 192.168.56.101/24
lxc-host: 192.168.56.102/24
guest1 192.168.56.201/24
guest2 ...
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
87 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
650 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
128 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
370 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
3k 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
2answers
139 views
Routing for multiple uplinks/providers
I have a PC with two internet connections. The first one is an Ethernet interface to connect to my local network and access internet via my router. The second one use a GSM modem to connect with ppp.
...
8
votes
2answers
728 views
Openswan connecting to multiple right subnets not working
I'm trying to use Openswan (version 2.6.37) to connect an IPsec VPN from my local network to a remote site. Everything works fine when I just want to connect to a single subnet on the remote site. ...
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
26 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 ...
1
vote
1answer
182 views
Network bandwidth measurement on Solaris
I want to install pathtest or a program like it in a Sparc server running solaris 10. The purpose is to make a speedtest server to my remote sites.
It is mentioned in pathtest FAQ that it only ...
2
votes
3answers
771 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 ...
1
vote
1answer
432 views
Port Mirroring in Fedora?
I have set up an application that listens constantly to a port for network packets, and I would like to create another one that receives the same network packets ( for use as a test bed). Getting the ...
0
votes
1answer
170 views
How to monitor other nodes to get RSSI?
I need to measure RSSI between two peers of nodes in same network.
If I have these two information:
SSID for their network.
IP for the target node to get the RSSI regarding it.
So I found this ...
