Managing and using network connectivity on a Ubuntu system

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Setting up server to connect using SSH over the internet (Ubuntu 14.04)

I am trying to set up a local server to be accessible from outside of the local network. I am new to this concept and a little unsure as to what to do. At the moment I access the computer using: ssh ...
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Unable to turn on wifi ubuntu 14.04

Recently i bought a hp i3-5010u laptop. I am tried to connect to my WI-fi. But, i could not see any wi-fi connections. I tried to turn on wi-fi on pressing f12 button. But, for f12 bluetooth is ...
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Trouble connecting to the internet in windows (dual boot ubuntu)

I'm having an original Windows 8.1 dual booted with Ubuntu 15.04. My ISP has given me IP address and other settings to access the internet through LAN cable. I've same setting in both windows and ...
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1answer
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Wine slow to start when blocked access to network through iptables

I've got a separate user for running untrusted applications in wine and it was relieved from accessing network at all by using # iptables -A OUTPUT -p all -m owner --uid-owner username -j DROP Now, ...
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Creating an ethernet bridge between a windows 7 laptop and an offline Ubuntu PC

I have been trying to get internet to my Ubunutu PC to download packages I've been needing for awhile. I tried with an edimax usb wifi antenna, but the install cd required several packages for me to ...
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10 views

System unable to detect wireless driver/connections Lenovo G50-80 Laptop

I just installed Ubuntu 14.04 (kernel 3.19.0-26-generic), alongwith Windows 10. I am unable to connect to the wireless on my Ubuntu OS. I'm posting outputs of certain commands : tyagi@tyagi:~$ ...
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14 views

Wifi disabled by hardware switch

I have tried to unblock it using the rfkill command and when I use the rfkill list command it gives this: ~$ sudo rfkill list [sudo] password for brandon_x_fox: 0: phy0: Wireless LAN Soft ...
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7 views

is there any way to install atheros e2400 drivers?

I have a new motherboard. MSI Z170A GAMING M5 This motherboard has an Atheros killer e2400 ethernet controller When i do lspci -nn i get: 03.00.0 Ethernet controller [0200]: Qualcomm Atheros ...
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Why do I keep getting “Unable to access the network” when using Chrome?

This only happens in Chrome, Firefox works just fine. $ uname -a Linux xxxxxxx 3.19.0-26-generic #28-Ubuntu SMP Tue Aug 11 14:16:32 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/lsb-release ...
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1answer
43 views

What does this terminal message mean?

I can't get internet on one of my computers. It says connected. I had this similar problem on my other computer and I used this command to fix it: ip route add default via defaultgatewayip It ...
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redis server not running show status not running

hduser@ubuntu:~$ redis-cli 127.0.0.1:6379> ping PONG 127.0.0.1:6379> quit hduser@ubuntu:~$ sudo redis-server status [sudo] password for hduser: 5194:C 04 Sep 14:51:01.970 # Fatal error, can't open ...
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31 views

Help needed on installation of USB ethernet adapter in Ubuntu 14.04.3

I am totally new to Ubuntu. I am running Ubuntu 14.04.3 now. The problem I am facing is that I use PPPOE connection for internet, and as I have some problem in the LAN port on my laptop,I use a USB ...
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3answers
88 views

igb Detected Tx Unit Hang

Have a: lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.3 LTS Release: 14.04 Codename: trusty with kenel 3.16.0-46-generic. Today i do dist-upgrade ...
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wifi hotspot not working ubuntu 13.10 [on hold]

I installed Ubunutu 13.10 installed onto an external drive from a magazine disk. While trying to hotspot from an Android phone, the authentication box comes up with the correct password already ...
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2answers
16 views

How to setup PC router to monitor LAN traffic?

I'm sure I can turn a pc or a raspberry pi into a router. I'm just wondering if I can use this router to monitor traffic? I mean say I have four terminal devices owned by different person in my ...
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1answer
10 views

How to set up SAMBA on ubuntu with a 2tb drive connected to my dlink router?

I tried mounting the network drive on all 5 computers in my home with smbfs: //192.168.1.1/USB_Storage /media/Shared_drive cifs guest 0 0 It works but I just think samba might be more secure. I have ...
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1answer
16 views

How to cleanup old wireless networks from the dropdown list

Once when there was a very boring lecture at Uni, 300 students started making random networks. For some reason some of them stayed and are still there. I have never connected to them, and they are not ...
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Ubuntu Mysql Server and Netbense Java Project Connectio Error

@ I Installed Ubuntu Server 14.04.3 LTS (using VMwear Workstation).... Static ip details() address 192.168.137.xxx broadcast 255.255.255.0 network 192.168.137.0 ...
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Cannot connect to or search for WiFi in fresh Xubuntu 14.04 install

I've been using Ubuntu for a year or so now. I've installed a few different flavors on a few different laptops around the house. On a new Acer laptop, however I have had no luck getting wifi to work. ...
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4 views

Poor performance from Network adapter with wireless connections?

I'm facing performance issues with my wireless network adapter (or drivers, I'm not sure) on Ubuntu 15.04 and now recently, on my elementaryOS Freya installation. The same works fine when I log into ...
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JBL ON BEAT A WAKE PROBLEM [on hold]

Hey I have a problem with my JBL ON BEAT A WAKE it's showing me on the screen "UP 9" and i cannot use it. Thank You
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16 views

OpenVPN connect message in script

I was wondering, how do I run a command when my OPENVPN bash script has connected successfully to a network? I know about the: "command;nextcommand" thing do I do something like this so it runs a new ...
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i am unable to run ubuntu webserver online with private ip address provided by virtual box

i have installed the ubuntu server in virtualbox and virtual box network settings are in NAT .for that virtualbox is providing the private ip address for server to work online but iam unable to ...
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Not able to access some websites after updating Ubuntu 14.10 to 15.04?

I just updated my Ubuntu from 14.10 to 15.04. After that I am not able to open some websites,for example Flipkart.com, Naukri.com etc. All these sites I am able to open in Mobile by connecting to ...
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Ethernet connection kept trying to connect but failing, more issues ensued

Alrighty. I'm brand new to Ubuntu and Linux, so bear with me here. I just installed Ubuntu 14.04 today, as I've been interested in linux and want to get into it, but I'm having a serious issue ...
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1answer
11 views

Nmap Error when using the “–script” arg

i just installed the nmap network scanner, and when i try to use it whith the "-script" parameter, it doesn't work: example: soufiane@soufiane-cvc:/usr/local$ nmap -p143,993 -Pn –script ...
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What are the directories and files that I should keep in sync for a cluster server

I am currently wanting to set up new clusters. Each cluster is defined by its software installed, software settings, and its home folder files. I want only the above to be cloned and not things ...
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19 views

Ip Forwarding between wlan0 <=> eth0: works in Terminal, fail in Browser?

I enabled ip-forwarding between my interfaces wlan0 and eth0 : in /etc/sysctl.conf sh "echo 1 > proc/etc..." 3 iptables rules. IpTables rules: sudo iptables -t nat -A POSTROUTING -o eth0 ...
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2answers
36 views

How can I cut the mac address out of DHCPDUMP?

I am trying to use dhcpdump to recognize people logging onto my home network and give them a tailor made greeting using a credential file. I cannot get the mac address out of the results of dhcpdump. ...
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12 views

How to mount a dynamic share (NFS) from a script by a non root user

I need to mount a network shared folder (with rw access) from within a script on a headless ubuntu server. The script will receive the ip address for the share as an argument. The script will be run ...
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34 views

ufw won't allow connections to port 5432

I've installed Postgresql 9.4 on Ubuntu Trusty from the PGDG ppa. I've created a database and set it listen-address to '*'. I've made an entry in the pg_hba.conf file. I can connect locally with no ...
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20 views

iptables set-mark doesn't work

My machine has two network interfaces, one is wired (eth0) and the other one is wireless (wlan0). The wired one cannot connect to any external NTP server because there is a firewall outside. The ...
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Active Directory Domain Controller Not Appearing in Network Folder

I'm having issues with my Active Directory domain controller, where my server does not show up on Network or My Network Places. I am running Samba 4.1.6-Ubuntu on Ubuntu Server 14.04.3. This issue ...
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Wireless on Ubuntu 14.04 not working all the time

This is my wireless driver: product: BCM4313 802.11bgn Wireless Network Adapter vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 version: 01 width: 64 bits clock: 33MHz ...
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14 views

Iwconfig set bitrate impossible

I've got a problem with iwconfig. Prelude: I had a slow wifi connection, after some research I found that can be caused by a bad bitrate configuration. I launch iwconfig and Bingo ! : eth0 no ...
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19 views

Failed to connect Internet

I'm currently using Ubuntu 15.04, my computer is a Sony Vaio 32 bits, AMD E-450 APU. Suddenly, with no previous problems before this, I tried to connect Internet and out comes this: Failed to ...
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IPForward fail with wlan0 AP + eth0 WWW

I did it: wlan0: Wifi AP (Dhcp) eth0: Internet access I can verify the WWW is joinable by eth0. Clients can connect to Wlan0 AP. It works well if I redirect all traffic to localhost with ...
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How do I debug a large pause before network transactions when Network Manager is disabled?

I have had a network problem since upgrading to 15.04 for which I have tried a new network card and clean installation of ubuntu, neither of which worked. My system was fine under 12.04 and 14.04. If ...
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4answers
31 views

Block connections to open WiFi networks

My users are using Ubuntu on corporate laptops. They don't have sudo permissions. IT security policy deny connections to open WiFi networks. How to setup Network Manager to deny connections to that ...
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Dual Boot Win 7 and Ubuntu and can not get wired connection to work

Recently I decided to try out Linux and chose Ubuntu. After backing up all my files I went ahead and installed Ubuntu 15.04. I did this in a partition as a dual boot knowing my family would still want ...
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Failed to add/activate connection. (32) Insufficient privileges

I am doing a fresh install of a minimal Ubuntu system with MATE desktop environment. When I click on NetworkManager's icon and then a wireless network to connect to, I receive a dialog box that says: ...
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Setting IP routes using script

My Setup In this setup, the server can see the routers but not see each other causing the clients to not be visible to each other as well. The VPN is set up using PPTP and the routers have DD-WRT ...
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Waiting for network configuration (on boot-up)

I've noticed lately on my new 14.04 Server that I get the following on boot-up: Waiting for network configuration followed by: Waiting up to 60 more seconds for network configuration and ...
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Linksys Wireless-G USB Network Adapter WUSB54G ver 4 Can't Connect to WiFi

I'm a newbie to Xubuntu and am having trouble with getting my usb adapter to work properly. If anyone tell me how to do it step by step it would be greatly appreciated. I'm currently typing this ...
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18 views

WIFI fails after connecting

After connecting to the WIFI, my connection fails (this is normally after 15-30 minutes). I then go to network manager and find all the WIFI points have disappeared. The only way to connect up again ...
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15 views

BCM43228 not working after reboot

I am posting this thread after trying the solutions already provided in the forum but it does not work for me. Installed ubuntu 14.04 LTS version on Dell Latitude E6420 with a broadcom wifi devicie ...
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26 views

WiFi Has Stopped Working on MacBook Pro 7,1 with Unbuntu 14.04

Okay, so I'm very confused about what is going on with my computer. Below is my initial query, followed by an update to the situation. Initial Query I have recently removed OS X on my MacBook Pro ...
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Network Drives Not Mounting on boot untill ufw is disabled/enabled

I am relatively new to Linux but I am enjoying it and even more enjoying learning it. Here is what I set out to accomplish. I have an Windows media box (running win7) that i want to connect the shares ...
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Ubuntu 14.04 showing port 80 as filtered

I am having a problem connecting my ubuntu 14.04 machine to the Internet. The machine was working fine and suddenly stopped working. I can ssh into the machine using ssh gateway but I can't ping the ...
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Realtek rtl8723be.conf file doesn't exist | wireless not working | HP probook 455 G2

I have 15.04 Ubuntu MATE build and i cant get my wireless to work. I've tried everything , installing rtlwifi_new drivers, this is also happening with MINT and 15.10 beta 1 release. I tried it with ...