Managing and using network connectivity on a Ubuntu system

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1k views

How to access the internet from a virtual machine in Gnome Boxes?

I installed Gnome Boxes, created a new virtual machine and booted an ISO. The ISO boots up fine and the network inside the virtual machine got automatically configured by the distro (with dhcpd): IP ...
1
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1answer
678 views

Only loopback in /etc/network/interfaces - But internet works?

I just looked in /etc/network/interfaces, for the sake of learning Ubuntu better than before. What I'm wondering is. Why does it look like this: # interfaces(5) file used by ifup(8) and ifdown(8) ...
2
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2answers
3k views

VirtualBox client OS (using NAT) is able to access host's LAN - How come?

My network is somewhat simple: all PCs in my LAN (Ubuntu desktop, Win7 desktop, XP netbook) connected to a dlink home router, which is connected to ISP's cable modem. LAN has IP subnet 10.10.10.0/24, ...
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2answers
841 views

Crossover connection between two Ubuntu PCs using samba very slow

I got a Cat5e crossover cable to exchange files between my PC and Notebook real quick but the transfer rate is 1.3 MBs. Using USB 2.0 I'm soo much faster putting files on my external HDD. This can't ...
0
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1answer
525 views

Have set up a file server. How to make it accessible from anywhere? [duplicate]

I have installed xubuntu and made it a file server in my college using this guide. How to build your own file server Okay I am pretty new to these things, but I want to know a few things? 1) I ...
0
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2answers
721 views

My wireless adapter is “Hard blocked” - WN2001 on an ASRock AMD E350M1/USB3

My wireless adapter is hard-blocked and i do not know how to fix it. I have tried the following: sudo rfkill unblock all sudo rmmod rtl8192cu && sudo modprobe rtl8192cu sudo rm /dev/rfkill ...
5
votes
1answer
6k views

How do I get a StarTech USB 3.0 to Gigabit Ethernet Adapter working?

I bought a Startech USB 3.0 to Gigabit Ethernet Adapter and looking for linux drivers. I did google search and did not come up with anything. Startech.com has only windows drivers. Any help on ...
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1answer
1k views

how to setup user accounts on large network

I am migrating a set of 20 computers to Ubuntu and will be having only this OS. The previous OS needs to be discarded along with all its associated headaches and dependencies. I have so far managed to ...
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0answers
2k views

How do I install a Livebox USB printer as network printer?

I hope someone has figured this out because I've spent days with google trying to track down the solution. I got fed up with microsoft Win XP and 7 and decided to try ubuntu 12.04 on a spare laptop ...
0
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1answer
807 views

Ubuntu Won't Connect to Ethernet Network that doesn't provide internet access

When I try to connect to a network with an ethernet cable into my computer, and the network won't provide internet access (It isn't supposed to provide internet access, only local access), Ubuntu will ...
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2answers
2k views

How can I cancel all the current communication from particular IP in Ubuntu 12.04?

I am working on Ubuntu 12.04 firewall. I want to deny any IP on runtime. I am using "ufw deny from IP". It's working for future connections. But it is not cancelling the existing connections like ssh. ...
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1answer
469 views

Forward [open] Ports 7777; 2106

Hi i am new to Ubuntu (12.10) x64 Trying to forward ports for gameserver on my pc (Lineage II) Ports are opened in UFW Ports are opened in my Router Even if i disable UFW others still cant login to ...
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1answer
133 views

Need help troubleshooting Apache inside VM

I'm hitting a wall troubleshooting this. I feel the problem is either due to my lack of networking skills, or a basic knowledge of configuring Apache. I'm hoping I can shed some light on my setup by ...
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2answers
458 views

Identify “rogue” internet accessing Applications

At the moment I have an application/service/widget/plugin/cronjob whatever, accessing the internet on a regular basis. I could go into the details of my specific issue but I'd rather have an answer ...
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1answer
843 views

How can I prevent the hacking of my wired and wireless networks by tools like feedingbottle? [closed]

I am network administrator and I am always worried about network security as I know people use different techniques of hacking to penetrate wireless and wired networks. Recently I came to about ...
28
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3answers
16k views

connecting to archive.ubuntu.com takes too long

I have a Ubuntu 11.10 server that I just installed fresh. Now if I try to do anything with apt-get, it tries to connect to archive.ubuntu.com .. It stays at [Connecting to archive.ubuntu.com ...
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2answers
933 views

Network doesn't work on Ubuntu

I've migrated physical Ubuntu to Hyper-V 2012 with Acronis Universal Restore. It worked fine for a while till i rebooted machine. After reboot the network does come up: But any ping or anything ...
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1answer
766 views

How to establish VPN Connection using Vodafone K3773 HSPA USB Stick?

I am using Ubuntu 12.04 Desktop. I am trying to establish VPN PPTP connection to Ubuntu 12.04 Server. VPN connection available when PC is connected to LAN -> ADSL modem -> Internet -> VPN Server. No ...
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1answer
329 views

How to trace the IP of a hacker who always steals the Mac address of my computer? [closed]

I am using the edu net in my university. However it often occures that someone always steal the Mac adress of my computer to cheat the server so that he can use the network service without paying for ...
2
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0answers
416 views

How to get HAVP(HTTP Anti Virus Proxy) working?

I have a Ubuntu 12.04 server with HAVP(HTTP Anti Virus Proxy) with ClamAV and AVG. My dhcp server is a OpenBSD 5.2 router. If I connect manually to my Ubuntu server its works great, but when I'm ...
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1answer
174 views

How do I boot Ubuntu from the network?

Is there an easy way to boot ubuntu from network a.k.a. PXE? I would like to setup a PXE server, connect an old laptop (without cdrom nor working usb-boot-option) to the network and boot Ubuntu ...
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2answers
2k views

problems maintaining interent connection with static IP

I have been attempting to set up Ubuntu 12.04 with a static IP (with information provided by my university) as well as the local cycling IP on a workstation with two ethernet ports. However, I've had ...
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3answers
7k views

How to get your network ip

I am on a network with PPPoE connection for internet acces.I want to find out my network ipv4. Example: -on Windows 7 I can see both my PPPoE's connection ip and local network ip, either from ...
0
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1answer
206 views

Using both wired and wireless ubuntu 12.10 no bonding

i've got an PC running ubuntu 12.10. i have 2 connection: a wired connect to the internet through router A, and the wireless connection to the internet through router B. Now i have try to search the ...
0
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1answer
930 views

Ubuntu 12.10 network settings UI grayed out

I am running a pretty much stock install of 12.10. All the UI for network settings is grayed out, like if I right click from the top right bar icon or go to System Settings -> Network -> Options (all ...
3
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1answer
515 views

How do I force applications to use different internet connections? [duplicate]

I have two data connections. One is a USB Dongle with a high speed, limited data plan. The other is a broadband (over WiFi) slower, but unlimited data plan, connection. I want certain applications ...
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1answer
2k views

How to make Realtek 8723 recognize the network?

I have a Toshiba Satellite S855-S5378, and the wireless card doesn't work in Ubuntu 12.10 64-bit. This is my kernel: Linux 3.5.0-26-generic #42-Ubuntu SMP Fri Mar 8 23:18:20 UTC 2013 x86_64 x86_64 ...
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2answers
704 views

linux machine not visible to pc or macs at home [duplicate]

Setup Linux 12.10 machine from scratch, it can connect to the internet no problem. However I cannot see the linux machine from my PC or mac, is there something else I need to do ?
0
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1answer
664 views

12.04.2 LTS Server failure during installation during “Detecting Network Hardware…”

I've got an older PC,inherited from my father, who had it running WinXP successfully. I've tried unsuccessfully for 2 days to install Ubuntu Server v 12.04.2 LTS as a replacement (ie, NO dual-boot) ...
1
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1answer
113 views

how to sniff MMS urls from a lot of HTTP links

I have a text file that contains the HTTP urls for certain mp3 audio. If I copy and paste the link to browser, the browser is going to return me a MMS link that I can use to download the streaming ...
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0answers
350 views

DHCP can not obtain correct IP sometimes

I installed Ubuntu lucid on my Thinkpad x201i laptop.Recently I found it that when I connect my cable to my laptop in our school's library,my DHCP client can not obtain correct IP. I have to set it ...
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1answer
222 views

Customizing Samba file server

I customized Samba, but now one computer doesn't see new Ubuntu in network. In smb.conf, I appended this: [develop] comment = Develop file storage path = /develop browsable = yes read only = no ...
2
votes
2answers
3k views

How to access windows system on LAN

I have a wireless Access point which is connected to internet and the same being accessing by 2 system, one on windows XP and the other on Ubuntu. Please let me know if it is possible to access the ...
0
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3answers
3k views

Ubuntu 12.04 Installer Can't Detect My On-Board Network Interface

Currently installing Ubuntu 12.04.2 Server and I get an error saying it can't detect my network interface device. My board is Gigabyte Z77MX-D3H-TH. The installer allows me to continue though. Is ...
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1answer
469 views

Start ppp(Mobile broadband) connection automatically when eth0 gets down

I am having a two connection. One is local area Ethernet connection which connects to internet. Second connection is a GSM modem connected to my modem. What I am looking for is, When eth0(local ...
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1answer
488 views

Strange behavior with ssh on Ubuntu 12.04 server

Recently I installed Ubuntu server 12.04 on my computer at home with ssh support. I'm using WiFi instead of cable connection for this server. Everything works fine except the fact that for some ...
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2answers
932 views

How do I reset the network stack as if from a reboot?

Sometimes my netbook (Dell Mini 10v with Broadcom bcm4322 wireless adapter, Ubuntu 12.04.2 LTS) gets into a state where it can see wireless connections but not connect to them. Rebooting always fixes ...
0
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1answer
533 views

What's the best way to configure the containers to have an IP directly on the LAN

I see that there are a lot of new ease-of-use improvements to LXC in 12.04 & 12.10, and although I see some description to setting up bridged networking such that my containers have their own LAN ...
0
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2answers
214 views

How do I update Intel e1000 driver? Server reverts to old driver on reboot

I have a kvm server and I'm trying to update my Intel e1000 drivers. I can install the new drivers using the following code make clean make make install modprobe -rv e1000 modprobe e1000 ...
4
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1answer
982 views

How to use VPN over manually set up network bridge (with the primary interface unmanaged by NetworkManager)?

I've set up a network bridge which I'm using to connect KVM virtual machines on my desktop to my home network; I' ve don this the manual way by creating the bridge in /etc/network/interfaces (the way ...
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0answers
493 views

How to fix networking after installing a new CPU/Motherboard?

Upgraded from an AthlonII to an FX-8350. This meant new motherboard/integrated LAN. I can't figure out how to configure the new setup to connect to my network. Any help appreciated. Also, as i ...
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5answers
5k views

fail2ban or denyhosts to block invalid username login attempts

Is there a way to automatically block IP address when a user tries to login as any invalid username? I already have: [ssh] enabled = true port = ssh filter = sshd logpath = /var/log/auth.log ...
2
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1answer
1k views

How to create virtual NIC and associate them with different vlan

I am trying to connect one physical NIC to two different vlans by creating virtual NIC. Since Switch tags a port with only single vlan ID. If I convert the switch port to trunk mode, is there some ...
3
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0answers
8k views

Ubuntu 12.10 - “the system network services are not compatible with this version”

Fairly new to Ubuntu, know my way around, but novice user. Started my Laptop running Ubuntu 12.10 this morning, and no wireless or Eth. Look at Network Manager and this message: "the system network ...
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3answers
486 views

Strange networking problem. Google does not work

Google does not work, like just Google. This is the weirdest error I have ever seen. Every 20-30 minutes Google stops working in my browser, any other page works. Then in 5-10 minutes, it just comes ...
3
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2answers
432 views

What is the best way to trigger scripts or actions when the computer is disconnected from the network?

I am running 12.04 LTS. There are a number of shared resources that I use that are housed remotely on a local server. When disconnected from the network (on say a network, or router failure), I would ...
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3answers
1k views

Server at home with static public IP

Hi I have a problem with Ubuntu 12.04 Server. I have checked the IFConfig it seems all the entries are correct except the nameservers do not seem to get resolved. As such when I run ...
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2answers
2k views

can't connect to wireless network on hp mini after installing ubuntu 12.10

i got a used hp mini yesterdayand installed ubuntu 12.10 today. like others, i cannot connect to a wireless network. "enable networking" is checked but no connection options appear. ethernet works. ...
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1answer
1k views

Dell Inspiron 1545 with Ubuntu

I've installed Ubuntu on a Dell Inspiron 1545 and I'm not sure how to connect to my router wirelessly. It's asking for some information that I haven't seen before. In a window titled, Editing ...
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1answer
5k views

get apt-get stop using ipv6

I'm trying to use apt-get update or any other apt-get command it gives me this error: Hiba történt „2001:db8:dbb:1:1:1:1:221:8049” feloldásakor (-9 - A címcsalád a gépnévhez nem ...