Managing and using network connectivity on a Ubuntu system

learn more… | top users | synonyms (1)

0
votes
0answers
4 views

SSH to network alias ssh_exchange_identification: read: Connection reset by peer

New install: Ubuntu 14.04.2 LTS (GNU/Linux 3.16.0-45-generic x86_64) I have no problem with SSH to the DHCP address .22, but when I try the alias address .80 the connection is reset by peer. I've ...
2
votes
1answer
21 views

ubuntu 14.04 bluetooth BCM43142 no discovery (tx timeout)

i was browsing many posts regarding the issue, though i could not find a monolithic answer. the issue: unable to discover\detect other bluetooth nodes. information: $ uname -r 3.13.0-59-generic $ ...
1
vote
1answer
18 views

I can't access the internet in ubuntu 10.04

I can't access the internet in ubuntu 10.04 I got a book from a shop. Then i open the window edit connections. The book told as there will be a connection "auto eth0". But there is no connection such ...
1
vote
0answers
15 views

Why am I frequently getting disconnected from wifi after some time of use? [duplicate]

I use a Lenovo g50-45 with Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter. I am connected to the wifi and can access the Internet for like 10-5 min and then the wifi will ...
0
votes
1answer
23 views

Two IP for each interface?

I have edited my interfaces file in order to set a static IP for my network interface card. auto eth0 allow-hotplug eth0 iface eth0 inet static address 192.168.1.100 netmask 255.255.255.0 network ...
1
vote
0answers
23 views

Is the file '/etc/network/interfaces' ignored when I use the Network Manager?

I had this configuration in a server /etc/network/interfaces auto em1 iface em1 inet static address 192.168.1.250 network 192.168.1.0 netmask 255.255.255.0 broadcast 192.168.1.255 ...
1
vote
0answers
11 views

cannot access through telnet from ubuntu 14.04 to windows 7

I have this HW that i need to connect ubuntu and windows 7 from Telnet protocol to each other. Till now I have made this possible to open my terminal from windows 7 and it worked just fine. but when i ...
0
votes
0answers
5 views

Setting up firewall for my hosting

I am having an Ubuntu 14 instance installed in Amazon Cloud. In there, I have setup apache2,tomcat7, and phpmyadmin. Any request to port 80 will be forwarded to the tomcat based java application. ...
0
votes
0answers
9 views

14.04, wifi disconnected, atheros ar5008, CAN'T SLEEP!

Two days ago I started computer and found the wifi disconnected. I couldn't even figure out a reason since I didn't do anything, I didn't update anything, I didn't change any settings, and it just all ...
0
votes
0answers
4 views

bluetooth does not connect phone and speaker, and the wifi freezes the laptop when switching a network

I have Ubuntu 15.04 installed on a lenovo yoga3pro. It recognises, but it does not connect to my phone (iphone 5s) and speaker (envaya denon). the wifi freezes the system most of the time when I ...
-1
votes
2answers
26 views

SSH to local ip in external network

I know there is a lot of information about this subject but still I do not understand something. We have internal wiifi network that include 4 desktops, each one has internal local ip address. The ...
0
votes
0answers
10 views

Ubuntu 14.10 wifi keeps disconnecting

Every so often, my wifi will disconnect. I have posted the output of "lshw -C network" and "uname -a" below. sudo lshw -C network *-network description: Wireless interface ...
1
vote
0answers
12 views

Internet Connection not being picked up

My dad has ubuntu installed on his PC, and up to now we haven't had any issues with it. However a couple of days ago it auto-updated to a new version of ubuntu. Looking at the details in settings, it ...
0
votes
0answers
5 views

Modem 4G (HiLink) + network-manager

How establish a connection (internet) with this type of modem (HiLink) and network-manager? Doesn't matter how I try modem disconnects after few seconds. ł.o.
0
votes
0answers
43 views

Can't Connect to Samba Server After Setting Up VPN

I had installed Samba for a while on my ubuntu server now, everything works fine until I installed OpenVPN to my server recently. After I have installed OpenVPN and the Samba server stopped working, ...
0
votes
0answers
13 views

Internet comes and goes after update to 15.04

I recently upgraded to 15.04 with a Mac. At the beginning I had no internet at all but fixed that by isntalling manually the drivers from my wired connection. However now with both WiFi and wired ...
0
votes
0answers
9 views

Need help installing drivers for an Archer T2U wireless adapter!

I had an old computer running WindowsXP, and I wanted to add some life to it and finally expose myself to a Linux OS or something similar, maybe learn something from the experience. So I got a Lubuntu ...
1
vote
1answer
16 views

(Ubuntu 15.04) wireless connected but no internet access

i'm using ubuntu 15.04 vivid, I'm connected to the wifi but when I open Firefox, it said "Server not found", I open Software Updater it said Failed to download, basically no internet access. But I've ...
0
votes
0answers
5 views

Fast & Traceable copy of 2 TB data over Gigabit LAN from Ubuntu live mounted Volume to Synology NAS (Win SMB, NFS, Mac AFP)? How?

Fast & Traceable copy of 2 TB data over Gigabit LAN from Ubuntu live mounted Volume to Synology NAS (Win SMB, NFS, Mac AFP)? How? I am going a Data Recovery using a Unbunto Live CD (14.x LTE) ...
1
vote
1answer
21 views

connect to wlan0, and eth0 as safegaurd

I am currently running rpis headless that send data over ethernet to a server that is also connected to the router through ethernet. Using a usb wifi adapter and keeping the same IP address, i would ...
0
votes
0answers
16 views

What remote host allows tunneling thru ssh with public key and password?

I need a virtual desktop that can only be accessed by having the ssh public key and the user password. I was trying remmina but it does not seam to support the dual authentication of public key and ...
0
votes
1answer
23 views

wlan0 is missing

My laptop wlan0 missing after apt-get upgrade. It works well before. ifconfig only lists lo and eth0 now. iwconfig give no wireless extension error. $ iwconfig lo no wireless extensions. eth0 ...
1
vote
0answers
13 views

Problem with PBISOpen and Ubuntu 14.04LTS

Good morning I'm testing openpbis 8.3 version and i have authentification problem when i'm trying open new session on Ubuntu 14.04LTS, not in local netwark but only in distant network. Adding the ...
0
votes
0answers
10 views

net isp balance dependencies

I am trying to setup the http://lstein.github.io/Net-ISP-Balance/ in an Ubuntu server 12.04. I have a few problems during the installation. I got some errors that I cannot find a way to solve them. I ...
0
votes
1answer
22 views

Can't connect to WiFi with “Connection activation failed” error after upgrade from 14.04 -> 15.04

I recently upgraded from 14.04 to 14.10 to 15.04 in succession. I lost internet capabilities each time, thanks to my having to use a Realtek WiFi dongle. I was able to resolve those issues both ...
0
votes
0answers
6 views

New installation of Ubuntu Kylin doesn't recognize Huawei 4g wireless b/b modem (Lenovo 7303 Desktop)

I've been away from Linux for a little while but I've installed Kylin 14.04.2 64bit alongside win7homepremium 64bit. I had to install them both twice as I wanted to upgrade to win7ultimate while I was ...
-1
votes
0answers
9 views

Remote Desktop and Printing

I want to connect to Windows Computers using any Remote Desktop clients over a WAN connection from anywhere around the world. I used 2x, Remotedesktop Client and even remmina, But they all turn out to ...
0
votes
0answers
15 views

PFsense not working. Squidguard stopped

Hi I had tried to test the PFsense in VM VirtualBox. Let me explain the setup as follows: 1: PFsense installed VirtualBox (Server) em0 - 172.1.1.93 [WAN] vtnet0 - 10.10.10.1 ...
2
votes
1answer
12 views

can't run interface and virtual interface at the same time

So I am trying to create an ad-hoc network between a couple of devices. I also need to run hostapd in order to capture probe request packets. I have a wireless adapter (TL-WN722N) that is capable of ...
1
vote
0answers
15 views

Wifi stopped working after resume or reboot Ubuntu 14.04

I have a dell vostro laptop with Ubuntu 14.04 dual boot with windows (wifi is working with windows). The wifi stopped working after resume/reboot. Wifi is unable to detect any networks. PFB the ...
0
votes
0answers
23 views

No wifi networks detected after Ubuntu 14.04 upgrade [duplicate]

Since I clean installed Ubuntu 14.04 my laptop is now no longer able to detect wifi networks. I can use a wired connection, however. It's a Realtek wifi device. I've seen lots on Broadcom issues but ...
0
votes
0answers
11 views

Ubuntu 14.04 LTS - setup as proxy server

I am new to Linux. I want to configure my machine (Dell OptiPlex 780 with 4GB of RAM and 1TB HDD - two network cards) as a proxy server for my home network. What is your recommendation on how to ...
0
votes
1answer
13 views

How to keep alive a wifi connection on a laptop

I have a Dell Mini 9 running Ubuntu 14. The wifi seems to work well, but only as long as I use it. I've noticed that if I leave it idle, and then try to ping or SSH into it, it's disconnected from the ...
-5
votes
0answers
22 views

Why does ubuntu's wireless work horribly? [on hold]

It doesn't matter if I use LTS or not. It doesn't matter what hardware I've used. After about 6 months ubuntu seems to forget how to connect to my router even though nothing has changed since the day ...
0
votes
0answers
8 views

Cannot connect to internet due to route table oddness

Environment: Ubuntu 14.04 Problem: I want to connect to my VPN at work from home. Whenever I connect to my wireless, my route is set up to the work route. The home gateway is supposed to be ...
0
votes
0answers
4 views

How to remove pppoeconf configurations?

Kubuntu 12.04 When I installed Kubuntu, Network Manager didn't work very well so I set Adsl connection with pppoeconf. It worked fine but Network Manager is disabled for some reason.There's a red x ...
1
vote
2answers
23 views

Is sharing a mounted USB drive on Samba without a password a security risk?

At my low level of expertise, the only way I can share a mounted external drive from Ubuntu 14.04 to Windows computers in my house is to use the Samba GUI to share it, then edit smb.conf to add "force ...
0
votes
0answers
10 views

“Unable to connect to RDP server” in remmina desktop client

Never done it before so have no idea where i am going wrong. I clicked on new to make a new rdp connection and then added the ip address in the "server" box. THen i put the username and password in ...
1
vote
0answers
5 views

Forwarding specific traffic to another LAN

I've searched and searched but i didn't find an answer. I'm very sure this is not a duplicate question. there's a LAN of about 40 computers all running Ubuntu 15.04. There are two servers both Ubuntu ...
0
votes
1answer
26 views

Lubuntu won't connect to wifi

I recently installed Lubuntu on an old Toshiba Satellite P10 with Intel Celeron 2.6 Ghz and 2 GB DDR Ram . Any version of windows ran so slowly so I decided to give Lubuntu a go. It installed ...
0
votes
1answer
20 views

wpa_supplicant does not connect with “ioctl[SIOCSIWENCODEEXT]: Invalid argument” error!

Ubuntu Server 12.04 is installed on my desktop system (in text-mode, no X-Window is available) and I have no wired Ethernet connected, just wireless network is available. I use TP-Link TL-WN723N USB ...
0
votes
1answer
28 views

Slow SFTP Speeds with Raspberry Pi on Local Network

I am using my Ubuntu Desktop (15.04) to connect to my Raspberry Pi 2 on my local network. To access the files, I would like to mount the RPi using Nautilus's "Connect to server" feature. When I use ...
0
votes
0answers
11 views

New and Inexperienced: Wifi networks not being detected suddenly

I know very little about Ubuntu or programming, or really anything, but I'm helping a friend get a stable OS on his computer since some jerk nuked his entire hard drive, OS and all (me). For a while ...
0
votes
0answers
11 views

how to set up plex on ubuntu pc with external network synology nas as drive

I am a newbie to Ubuntu. I've been trying to set up and run PLEX on an old Dell D620 running 14.04 LTS using a Synology DS214se networked with a NETGEAR S524 switch. At this point I am happy to do ...
0
votes
0answers
13 views

Google sites are not opening

I'm using Ubuntu 14.04 and I'm having a strange issue, I have no idea what else to do... 1) Some Google sites/functionalities are not opening. GMail works but the browser tab keeps loading forever, I ...
0
votes
0answers
11 views

How do I password-protect a Samba-shared folder that uses “force user”?

After trying various things, I've found that this has allowed me to share an external HDD from Ubuntu to my Windows computers. Is there any way that I can add some sort of password protection to ...
0
votes
1answer
20 views

IPv6 SLAAC (ICMPv6 Router Advertisments) are ignored by wlan1 interface

I installed 15.04 on my Thinkpad W520. However, I'm not able to get IPv6 working on wlan1 interface: ifconfig wlan1 wlan1 Link encap:Ethernet HWaddr 8c:70:5a:d2:65:bc inet ...
0
votes
1answer
12 views

connect to encoder via eth0

I have ubuntu 14.04 and I am trying to connect to other device(encoder) via eth0. Encoder has ip address 239.168.168.55. I set my static ip address via network connections. In IPv4 settings I put ...
0
votes
0answers
16 views

Cisco VPN not connecting: no ifupdown configuration found

I am trying to connect to a Cisco VPN network using network-manager and vpnc. Until one week ago everything was working fine. Now suddenly the connection fails. The Log: Jul 25 21:09:12 ...
1
vote
2answers
76 views

Lubuntu / Ubuntu - Unable to connect to wifi network

I've been recently looking for information to fix the wifi connection on my Lubuntu machine. I got a fresh install of Lubuntu 15.04 on my PC with a TP-LINK 8200ND connected to it. Lubuntu shows the ...