Tagged Questions

Managing and using network connectivity on a Ubuntu system

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how do I initialize netgear 3100 wireless adapter?

new to Ubuntu and completely wiped hard drive for a complete 14.04 install. Cannot get wireless adapter to work. I think i have the broadcom driver installed correctly but now how do i turn it on??? ...
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2answers
23 views

Unstable wireless in Ubuntu 14.10

After the upgrade to Ubuntu 14.10, my wireless connection is become unstable. Once every 2 or 3 minutes the network stops to work (i.e. I am unable to load any page), even if, according to the Network ...
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0answers
9 views

OpenVPN Username/Password

An openvpn server is installed on ubuntu 14.04 this server is working for remote users to access local network each user has his own certificates generated by the CA (openvpn server itself) what is ...
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1answer
10 views

how to force ubuntu to use only opendns dns servers?

I am using ubuntu 14.04 on a home computer.And i am using opendns for web filtering.I configured opendns on my computer, not on my router.I have a dynamic ip and i use ddclient to update ip. the ...
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6 views

Routing Problem OpenVPN / KVM

I've set up a rented root server with KVM and OpenVPN. In order to administrate VMs without a public IP the VM guests are connected to a Host/Guest private network: 10.10.10.0. Now i want to access a ...
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1answer
16 views

Installing new network driver ubuntu server 14.10

Ok first of all I was trying to connect my server to my router and set up my apache2 server so my server could be viewable online. But in my attempts to connect, I found that I have no eth0 ...
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0answers
19 views

Ubuntu Server 12.04 cant resolve domains

I have an ubuntu server running 12.04 and nslookups fail. I'm 100% sure that the information I used in /etc/network/interfaces is accurate. I can successfully ping the default gateway as well as the ...
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1answer
14 views

Unable to connect to server on internal network

I have an Ubuntu server hosting a web server and various other things. If I were to ping 192.168.1.5 from my laptop the connection just takes a while and times out. If I'm sitting right next to the ...
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1answer
12 views

I have an Intel i217 -v Ethernet Controller and nothing is working for internet connection

I built a server yesterday with a Gigabyte g1 sniper. It uses the Intel i217 -v for ethernet. I installed the drivers and everything and nothing is working to get ethernet working. I attached the ...
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1answer
30 views

Wired network not connecting automatically after xubuntu 14.10 upgrade

Last weekend I upgraded my 14.04 xubuntu to the latest release, 14.10 (out of curiosity). Ever since every time I login I have to manually select the wired connection to connect to. The first ...
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2answers
34 views

No internet on Ubuntu Server 14.04 or 12.04

I am relatively new at Ubuntu, and am trying to install Ubuntu Server on a commercial network at an academic institution. When installing Ubuntu Desktop, I can automatically pull an IP address and ...
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0answers
15 views

how to enable google safesearch using dansguardian?

Click here. In the section "Keep SafeSearch turned on for the devices on your network". In option 3, "To force SafeSearch for your network, you’ll need to update your DNS configuration. Set the DNS ...
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1answer
45 views

Unstable Wifi Connection Ubuntu 14.04

I've read other questions in askUbuntu, but couldn't solve the problem as I'm new to Linux. The problem is that the Wifi connection on Ubuntu 14.04 is unstable. It does connect to wifi for a while, ...
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0answers
14 views

Ubuntu Network Manager is not working after setting up PPPoE?

About two days ago, i connected a new Broadband provider cable to my computer and used sudo pppoeconf To Configure my connection. After a while, When i restarted my computer, it was showing, ...
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0answers
11 views

14.04 dropped packets

I have a virtual machine that uses a second netwotk card from a physical server. This card is used only for my webserver with ubuntu 14.04.1. The internet connection speed is 1000 mb/s, and there are ...
0
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1answer
15 views

Poor wireless performance with RealTek RTL8723BE

I have a laptop with the RealTek RTL8723BE. Performance is poor with long ping times, dropped packets and often on wake the network manager will report 'connected' but nothing with get through, ...
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0answers
39 views

Intel Centrino Wireless-N 1000 WiFi Hotspot

I have Ubuntu 14.10 on my Dell XPS 15 L501x and have an Intel Centrino Wireless-N 1000. In an older version could create a hotspot with my Laptop for my smartphone, but now it is not possible anymore ...
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0answers
8 views

Wifi problem on an FS Amilo Li 1718, under 14.04 LTS

I am having trouble with my Qualcomm Atheros AR242x/542x wifi card in a FS Amilo Li1718. It only connects sometimes, and the speed is low when it does. Sometimes it does not even allow me to turn on ...
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0answers
24 views

I cant connect to wifi through Leoxsys 150 Mbps Nano WiFi USB Wireless Adaptor

Hi guys am new to ubuntu 14.04. I have desktop and ive attached Leoxsys 150 Mbps Nano WiFi USB Wireless Adaptor to it. It is detecting networks for ubuntu and even it is connecting. But when i open ...
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0answers
32 views

Cannot connect to a remote machine via PuTTY. It's connecting to the machine, but the desktop is not displaying

I tried using vino_preferences, but it's giving an error message: gtk-critical ** gtk_entry_set_text assertion text = null' failed
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0answers
49 views

Ubuntu 14.10 no network found

So this morning i have update to the latest version of ubuntu 14.10 and when i booted it , it cannot find network. I have installed on a desktop so i am useing wired connection, when i go to my ...
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0answers
8 views

Using Bind for DNS request and serving A records

I have asked in a few places and do not seem to be able to get an answer. I have a subdomain ie ddns.example.com pointed to a server. I intend to give users a hostname ie bob.ddns.example.com. ...
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1answer
17 views

iptables and expressing your IP address to the rules dynamically

I've been recently spending my time refining my iptable rules to be a little more robust than Ark linuxs Simple stateful firewall to include defense against some other known and nefarious attacks. One ...
0
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1answer
36 views

how to block https version of a site?

Site is youtube. I am using dansguardian+privoxy. I need only http version of youtube. Is it possible to block port 443 for youtube.com only.
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0answers
8 views

How do I make files copied over the network from my Windows computer be owned by me?

I have a drive on my Ubuntu machine shared over a network, and one of the computers that can access it is a Windows 7 computer. Whenever I am on my Windows computer and I copy a file to the Ubuntu ...
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1answer
44 views

Ubuntu-Windows Public Folder File Share

I have created a network share folder in my Ubuntu 14.04, I downloaded Samba and created a username and gave it a password. I have Windows 8 able to see it and add credentials. But after I enter in ...
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1answer
38 views

Able to access web by ip, but not by dns name

I'd like to post a solution to a problem I've encountered in my university. The issue is closely related to this post. I asked the user whether or not he found a solution but he never responded. In ...
1
vote
1answer
71 views

Weak WiFi signal

I have a Fujitsu Lifebook AH531 (I think wireless is Intel® Centrino® Wireless-N 1030, 802.11 b/g/n) I have recently installed Ubuntu 14.04 LTS Previously I used Ubuntu 12.04 LTS and Windows 7 on the ...
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vote
2answers
70 views

Error: 'There was a problem connecting to the CUPS server.'after upgrade 14.04 to 14.10

After upgrade from 14.04 to 14.10, I can not use my (SAMBA) network printer anymore. Jobs stay in the que forever. When I go to 'Printers' and ask for the properties of the printer, I get the message: ...
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1answer
30 views

Why am I having networking issues in Utopic?

I upgraded to Utopic yesterday, and ever since I've been encountering errors like these: Chrome: Error code: DNS_PROBE_FINISHED_BAD_CONFIG apt-get: Cannot initiate the connection to ...
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0answers
20 views

ip routing / firewall to lock processes out of eth0 but allow them on eth1?

as shown by my previous questions on AskUbuntu, I'm setting up a server, but am hampered by my lack of experience with this. So, here's another question I hope someone can help me figure out. My ...
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1answer
19 views

DNS points to the right IP, but I can't SSH based on DNS

I can connect remotely to my system using the IP address, the DNS returns the proper IP, but I can't connect via a DNS record. i.e. matt@pontus:~$ ssh fake.myDnsExample.com ssh: connect to host ...
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0answers
19 views

Network Issues - Wired and Wireless Network Not working

I'm new to linux and ubuntu. I have installed ubuntu kylin. Now I'm having an issues that is the wired or wireless connection will not start automatically. I tried to restart the network manager but ...
0
votes
1answer
33 views

problem with localhost And 127.0.0.1 on ethernet network in ubuntu OS 14.04

I have two computers on my network and both are running Ubuntu. The server (192.168.61.150): When I enter in the browser address is http://localhost to my site loaded correctly. But when I write ...
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0answers
11 views

Local domain won't resolve

I have a dns which I had put into the ip4 config which should in theory give me access to a *.test.local domain. It pings well. I also disabled the avahi daemon completely. The hosts line in the ...
0
votes
2answers
28 views

How to increase JAVA Heap Size?

I need to increase the default java heap size to get OpenNMS Linkd service running smoothly, and fortunately I have 4/5 of my total installed memory free at any given time even when their is maximum ...
0
votes
1answer
21 views

Warning: section [Dialer hsdpa] does not exist in wvdial.conf. --> Cannot open /dev/ttyUSB2: Permission denied

Huawei EC156 detect and unlock procedure Hi there! I am usin HP Laptop and Ubuntu 14.04 upgraded fully. I hve got a Huawei EC 156 USB modem and want to use the exclusively for internet connection ...
0
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1answer
4 views

IPtables client - server(router) error

I've got a school assessment this week. Let me explain how my environment is: 1 Router (Have DHCP + giving an ip to the client) Has NAT for Internet 1 Client (Can only have internet acccess via the ...
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0answers
13 views

Wireless on a offline Ubuntu Desktop

Alright, i've tried looking up everything I can and trying that. I just put in a HDD and installed Ubuntu 14.04 LTS 32x. Now, I had a small IBM pc that kept dropping the internet connection, so I ...
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2answers
24 views

Wireless Printer not found to set up printer when wireless printer is connected in 14.10 upgrade

I just upgraded from 14.04 to 14.10 32 bit. I was using my wireless printer with 14.04 with no problem. But after the upgrade, my printer area doesn't see the wireless printer to print to. I can ...
0
votes
2answers
41 views

How to mount an external Hard Drive connected to a netgear router?

I have a Laptop running Ubuntu. The external Hard Drive is attached to the netgear router. Both are wire connected. The external Hard Drive shows under the network section in files. but when I try to ...
0
votes
1answer
21 views

Brother network printer with users

My office has a Brother MFC-9970 CDW on the network. The printer is set up with users so that each person can be billed according to their printing usage. Everyone can print from Windows, but from ...
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0answers
11 views

DHCP seems to fail very frequently unless I use tcpdump

On my Ubuntu 14.04 system, many connections (especially wireless ones) seem to simply time out. However, if I run tcpdump on the interface before attempting to connect, they almost always connect ...
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0answers
119 views

Wifi issues after fresh Ubuntu 14.10 install

I've recently did a cleain install of Ubuntu 14.10. Unfortunately I'm having network issues: When I try for the first time to connect to a secured Wi-Fi network (EAP/PEAP, MSCHAP), it works. ...
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0answers
9 views

Ubuntu 12.04 keeps getting the wrong gateway irrespective of what I do

My Ubuntu 12.04 box connects via another machine on the network. I want to force a gateway of, let's say, 173.20.1.222. However, irrespective of what I have tried it keeps getting a gateway of ...
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0answers
19 views

Ubuntu 14.04 connect to WPA2 802.1x Enterprise Wifi

Recently I replaced the OS of my Samsung Smart PC Pro to 14.04, only to find that I cannot connect to my school's WiFi. The WiFi is PEAP authenticated with no CA certificate and requires the username ...
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0answers
28 views

Help! WiFi problems with Ubuntu. (Full logs)

Okay, here's the situation. I have a Broadcom Corporation BCM4321 802.11a/b/g/n (rev 05) WiFi card, and It really doesn't like my new router; It won't connect, the Wireless manager shows connection ...
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0answers
27 views

How can I compile and run a program designed for an older kernel version (2.6) in a newer kernel (3.16)? [migrated]

I'm trying to run a driver for a network card, but it only supports kernels up to 2.6.32. I need to be able to use this piece of hardware to connect to the Internet. The device I'm using is "VIA ...
0
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1answer
36 views

how can i force a software run udp way?

i want to know if i can force an specific program to use the udp protocol instead tcp on ubuntu 14.04?? There is any way to achieve this?? I need to jump a vlan and udp connections make the job.
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1answer
39 views

How can I get my 5G wifi to work?

I just got a fancy new 5G-enabled dual-band wireless router. My lspci says I have a: 01:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01) So the 802.11n should be able to ...