Managing and using network connectivity on a Ubuntu system

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11
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3answers
18k views

How do I connect to a server with thunar in Xubuntu?

In Ubuntu running Gnome 2 you were able to select "Connect to Server" from the Places menu and you would get a graphical connection to whatever server you connected to. Example: How can you do ...
4
votes
1answer
2k views

How do I setup DHCP-Server interfaces so they are mapped/bridged to each other?

I have recently setup a DHCP-Server on an Ubuntu 10.04 server machine. The machine has two interfaces (eth0, eth1). I have the DHCP server setup correctly because computers connecting to the network ...
0
votes
1answer
820 views

Unable to connect to the Internet via LAN despite the connection showing as established

I have installed Ubuntu 11.10. I am facing a problem connecting via LAN. We have a firewalled network. After entering static IP, gateway, DNS, etc., it shows connection as established but we are ...
1
vote
1answer
1k views

How do I make the system-wide proxy settings bypass the proxy for local addresses?

I set global proxy settings via System Settings>Network>Network proxy I set the Socks host. All apps, including the command line apps successfully picked it up. But its a problem with ...
5
votes
2answers
2k views

Why does 11.10 wait for network config when everything is static?

I'm one of the many confused by the new several minute delay when booting an upgraded Ubuntu 11.10 system. I have two NICs, both with static IP addresses, plus lo and nothing else (that I know of). ...
2
votes
1answer
4k views

Simple NAS setup for Ubuntu

So, I want to connect my shiny new NAS (QNAP TS-210p II) to my Ubuntu 11.10 box. I have a 2nd Ubuntu machine, but I don't use that enough to be too worried about it. Use is ideally to offload all ...
1
vote
1answer
693 views

How can I fix the slow performance of my Marvell Yukon 88E8052 ethernet controller when using the 11.10 default driver?

I have a Marvell Yukon 88E8052 ethernet card which they support with an official driver called sk98lin. On both Ubuntu 10.10 and 11.10 I get the following results on http://speedtest.net when using ...
3
votes
1answer
582 views

Find out whether network connection is full or half duplex

How do I find out whether a network connection is full or half duplex?
2
votes
3answers
4k views

How can I configure my server so that my domain points to it?

I have bought a domain name (without hosting), and at home I have a static ip address on Ubuntu server 11.04. How can I redirect users to my web server at home? What configuration needs to be done?
1
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0answers
115 views

Share folders from Guest OS to Windows Host OS Virtualbox [duplicate]

Possible Duplicate: Shared folder virtualization in Ubuntu 11.10 So most articles are focused on the Virtualbox forcing a folder into the Guest OS. I want to do the opposite, share a ...
4
votes
2answers
3k views

Unreachable IP on local subnet

I have a network printer at 192.168.2.101 that I can reach just fine with other machines on my network (ping and access the printer web server). For some reason I can't access the printer from my ...
2
votes
1answer
530 views

Is it possible to setup a DHCP server only for local virtual machines?

I have a quick question. I have a bunch of virtual machines (VMWare Workstation) running on an Ubuntu server and have found that VMWare NAT (DHCP) service is unreliable and slow. I have to use NAT ...
3
votes
1answer
111 views

How can I see net traffic in the apps bar?

I have a question. How can I see net traffic in the apps bar? Do I have to install something? I don't want to analyze the traffic, just see if its having incoming/outgoin data transfer. Thxs!
1
vote
2answers
1k views

How can I configure Mythbuntu 11.10 to wait for a DCHP lease before completing boot and starting network dependent apps?

I have a clean install of Mythbuntu 11.10 acting as a frontend only. It is networked using eth0 and I have a router acting as a DHCP server on the same subnet. The frontend boots and automatically ...
1
vote
0answers
47 views

Make different applications to use different connections [duplicate]

Possible Duplicate: bind software to different network interfaces Is it possible to get an application like transmission to use the mobile broadband connection and say chrome to use the ...
0
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2answers
2k views

Frequent disconnects using wlan AR9285

I'm getting a large number of disconnects from my wireless when I switched to oneiric server (I did not see these happen with oneiric desktop) from my AR9285 wireless LAN device. Here is the syslog ...
16
votes
1answer
26k views

Where to set proxy ignore list?

I upgraded to ubuntu 11.10 from 11.04, shocked to see few things... My system is behind a proxy, so I did set a proxy setting. Being a web developer, I want to remove a lot of addresses that I type ...
2
votes
1answer
252 views

Network Storage Device No Longer Accessible After 11.10 Upgrade

After upgrading to 11.10, I lost access to my Network Storage Device (NSD). I had access earlier in the day before upgrading. It sees the NSD but bombs out trying to access it. I get Unable to ...
1
vote
1answer
2k views

Can get IP after upgrading to 11.10

Had upgraded my laptop from 11.04 to 11.10, desktop ubuntu. And made fresh install of ubuntu server 11.10 on another comp. And now a have exactly same problem on both computers: It doesn't have ...
2
votes
2answers
946 views

Wireless slow on an Intel AGN5100 on an hp Presario C45

I have installed ubuntu 11.10 on my laptop yesterday, everything worked fine except for the wireless, which is very very slow compared to xp on the same machine. I didnt have this problem when using ...
0
votes
3answers
2k views

Network Connections - able to connect to wireless but network connections does not display my connection

Im using Ubuntu Oneiric and AR9285 Wireless Network Adapter. I can connect to my wireless network without problem. However when I click the "Network Connection" icon on system tray, it is disabled ...
1
vote
1answer
3k views

Why does dhclient <interface> return a services related message?

I'm trying to use dhclient to set up a tether with dhclient, which worked in 11.04. However, upon upgrading to 11.10, I get the following message when trying to use it. Rather than invoking init ...
1
vote
5answers
7k views

Ubuntu 11.10 network speed [closed]

Just upgraded to 11.10 from 11.04 . My internet speed is VERY slow now. I did a speed test with two similar laptops. The one running windows has a download speed of 14Mb/s while the one running Ubuntu ...
10
votes
2answers
1k views

How to stop Network Manager from continually prompting for wireless password

How do you prevent Network Manager from continually prompting for wireless password when it tries to reconnect after the connection temporarily drops? Unlike this post, this happens for me without ...
1
vote
1answer
4k views

Lenovo b570 Broadcom Corporation BCM4313 wireless doesn't work

prumar@bluelaptop:~$ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: ideapad_wlan: Wireless LAN Soft blocked: yes Hard blocked: no 2: ideapad_bluetooth: Bluetooth ...
0
votes
1answer
1k views

mediatomb autostart doesn't work

mediatomb works fine when starting manually but the autostart doesn't work. In the wiki it says it should start automatically at system start, but it doesn't. tryed many things but still doesn't work ...
0
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0answers
3k views

Wired Network “device not managed” [duplicate]

Possible Duplicate: network manager says “wired device not managed” I have been having serious problems connecting Ubuntu 11.04 to the internet. I have three computer in my ...
1
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2answers
2k views

How to share internet from one network card to another ethernet port

I basically seek a way to "bridge" the internet connection coming into my linux machine through one ethernet port (on the mother board's NIC) and share it with another computer connected to a separate ...
4
votes
3answers
2k views

Persistent 3G connection with network manager fails [closed]

I maintain a persistent 3G connection on a remote device using network manager. However, every so often, the link fails and then does not restart itself. I managed to identify an occurrence of this in ...
0
votes
2answers
2k views

How to disable a laptop's built-in WiFi NIC when using a PCMCIA one?

I have a weak (having to reconnect frequently) "Intel Ultimate N WiFi Link 5300" built-in WiFi module in my Dell E5500 laptop and prefer to use a PCMCIA "Atheros AR5008" instead. On Windows I just ...
0
votes
1answer
544 views

Why does my wifi not work?

Yesterday evening, my connection was working perfectly well. Then I connected to my school's wifi this morning, fine. As I was switching it on, my friend pressed my wifi button. I shut down my ...
1
vote
3answers
1k views

NAS device for Ubuntu

Fellows, I would like to know if you use, how you use and which device as Network Attached Storage. I've being reading some reviews online, and there is a lot off downsides in many models - more ...
7
votes
2answers
11k views

Waiting for network configuration message at boot, then blank screen

When I boot (11.10), I get the message that it's "waiting for network configuration" and then the same, but "60 seconds longer" and then finially it "boots" but to a black screen. No cursor, just ...
1
vote
1answer
2k views

PXE server to boot ISO or other linux distro over network

How do i setup my ubuntu desktop to act as a pxe server to boot ISO's across the LAN. And is it possible to run linux distros like linux mint, moblin etc so that boot at client would be faster. I ...
2
votes
2answers
773 views

Access to network files under \\directory

I was doing Start - Run - '\\myfiles' under Windows XP and had access to some file directories over my network. I dont know how to do the same thing under Ubuntu.
1
vote
1answer
617 views

Unable to connect my computer from LAN (http, smb)

I installed ubuntu 10.04, Apache, PHP, mysql, smb. Everything work fine in locally in my IP. When i trying to access my computer from LAN (other computer), it shows unable to connect. when i ping my ...
1
vote
3answers
290 views

Why does Ubuntu go on disconnection fits?

Got a new router (Netgear DGN2200) and wireless performance has been woeful, with disconnection fits happening several times a day - it disconnects out of the blue, and then fails to connect ...
1
vote
0answers
415 views

Wireless connection not recognized after trying to set up xl2tpd or pppoeconf [closed]

To be able to use some vpn, i installed the xl2tpd on Ubuntu, but it did not work and i removed it. I changed a bunch of configuration files during the process. I used this tutorial: ...
3
votes
2answers
295 views

Aptget without networking

i had a accident and i removed network-manager package, now i cannot get network access or internet access to apt-get install it back and reconfig the internet what should i do? download the DVD and ...
0
votes
1answer
442 views

how to access and change tcp configuration

I wanna play the buffer size and other settings in the tcp configuration in order to finish the project that am working on and analyzed the results ?? I want to know if there is a file or something ...
16
votes
4answers
14k views

How to find unused IP Address on a network?

I just want to find out unused IP Address on a network. I think it is possible with nmap. Can any one say me the way pls? Note: I just need the free IP list alone.
4
votes
1answer
10k views

Understanding my route table

this isn't programming at all, but I've seen related topics so I thought why not. I am using ubuntu and currently trying to learn basic networking. I read a lot of theory, so I understand the terms ...
1
vote
2answers
3k views

How to setup one ethernet interface as dhcp server and another interface as static ip?

I am getting a static ip from provider. But in my Ubuntu 11.04 pc i have two reserved ethernet interface mostly both are like getting automatic dhcp IP as of now. But i want my Ethernet interface 0 ...
5
votes
2answers
5k views

Why is ddclient giving me an “Invalid IP” error when trying to update dynamic DNS?

I am having a really hard time getting ddclient (which updates OpenDNS with my current IP address) to work. I have it running as a daemon, but it never succeeds in updating my IP address at openDNS. ...
2
votes
1answer
278 views

Enforce outgoing port for a machine inside LAN

I'm running Ubuntu Server (natty) in as a gateway/firewall in front of a private network. I have successfully enabled IP forwarding and NAT so the machines behind the firewall can connect to Internet ...
5
votes
1answer
1k views

Crashed my server, how do I find out what happened?

From a remote machine, I ran 100 concurrent requests against my Ubuntu VPS ab -n 100 -c 100 http://... And, as I suspected, the server "crashed". I can still ping it, and it responds very quickly ...
1
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2answers
3k views

How do I fix UPnP Port Forwarding on Ubuntu using miniupnp?

From what I understand, Transmission bittorrent client uses the miniupnp library to do it's UPnP port forwarding of routers, however on Ubuntu upnpc (a test client of the miniupnp library) doesn't ...
1
vote
3answers
1k views

How do I diagnose an onboard wired network interface that quit working?

I have an installation of 10.10 that has been working fine since I upgraded. One day I booted it and there was no network connectivity. The network indicator now says "Networking disabled". If I go ...
1
vote
1answer
528 views

Connect remote via putty

How to connect with putty to a ubuntu 11.04 server which is connected to the internet through a router configured with static specifications? I have ssh server installed, and when i try to connect ...
1
vote
1answer
1k views

Internet connection with static IP

I have installed ubuntu server 11.04 edition (with LAMP, mail server, and SSH server) and I try to connect to the internet. When I plug the cable from my ISP with the configuration provided below to a ...