Managing and using network connectivity on a unix system

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Making proxies on Debian

Hi guys I am trying to create SOCKS Proxies on my VPS and currently am not getting too far so any help is well appreciated. Here's a few details on my VPS: It is running Debian linux, has 512mb ram ...
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855 views

Run root script or command as root in startup application in linux mint

I have a wireless adapter that used to work in Linux mint 16 (dwa 171) after installing drivers for it. Now it won't work the same way anymore since I upgraded to linux mint 17. I've found the only ...
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69 views

Weird authentication with Exchange server

I'm using Evolution with evolution-mapi to access an Exchange e-mail server. It has worked flawlessly in the past, but recently it will fail to authenticate, asking my password endlessly. If I enter ...
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116 views

Cannot connect to wired ethernet after hibernate

When I am at home I use wired connection on my laptop and it works fine. Then I put it to hibernate with sudo pm-hibernate and start it up again when I am work. I am not able to connect to internet ...
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52 views

Windows share suddenly empty

I have a laptop running Mint 15 Olivia that can access a shared folder from a Windows Vista desktop. Normally I can access and modify the files as if it were just another folder on the laptop, both ...
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1k views

Consistent network interface name ubuntu using pci slot

One can set consistent interface naming via mac address by modifying /etc/udev/rules.d/70-persistent-net.rules. Can you establish consistent interface naming by PCI slot number? (I tried but failed) ...
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181 views

Kioptrix Level 1: Determining IP information for eth0 failed

I'm trying to set up a Kioptrix VM in VMware Player, in order to analyze it from a separate VM using Kali Linux. The VM can be found on this page: http://www.kioptrix.com/blog/test-page/ When ...
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22 views

Once connection is lost wi-fi cannot be brought up again

I'm running Arch, using netctl-auto to connect, and it connects well. However, as soon as the connection is lost (e.g., timed out in a network where connection must be renewed after a period of ...
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181 views

How to make linux see my internet connection?

I'm sort of booting off of a Mint 17 LiveCD (the situation is described here: How can i make my pc boot back into windows?) and the network does not work. It's wired if it matter. I've also tried to ...
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24 views

lost packets using traceroute

using mytraceroute I see 50% of ICMP echo request lost: 192.168.1.212 is internal server while 192.168.5.1 is my router: Host Loss% Snt Last Avg ...
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82 views

Tools to inspect local network, and find local IP address of device?

This is my specific context (Latex/TikZ code for the diagram below): Now this local "Router", has broke down several times, and several different devices have had its role (sometimes they have a ...
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9 views

CentOS Run Command as Root on Startup [duplicate]

I need to designate my network card device p4p1 with a certain IP address on startup. The command I am using is as follows : /sbin/ip addr add 129.100.14.2/24 dev p4p1 this works from the command ...
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88 views

Flow control configs for ethernet interface gets reset in few seconds

I set the RX & TX flow control (aka "pause parameters") configs to an ethernet interface, as such: sudo ethtool -A eth0 rx on tx on When viewing the configs with sudo ethtool -a eth0, only RX ...
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53 views

How can I make CentOS 6 treating WiFi flexibly like Ubuntu 12.04?

In my office, I have AT&T Uverse. The router is a 2wire 3600HGV. The WiFI is provided by a Cisco Linksys E1000 that is plugged in the 2wire device. With my notebook running Ubuntu 12.04 LTS ...
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216 views

Apache server in raspberry PI not visible from outside( public IP)

I have made a fresh install of Arch Linux ARM into a Raspberry PI and I mounted there a LAMP, all fresh. I have another Arch(x86) in my laptop with Apache also there, and as far as I know, two web ...
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117 views

windows - suse rsh denied

I'm trying to execute a command through rsh from a Windows host to a Suse (SLES 11 SP2) host. The Suse (192.128.40.10) has xinetd installed and the service is running. I also made sure that the ...
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157 views

vagrant private network unstable

I have these 2 boxes, but I have a problem, when I start disributed and ping 172.28.128.2 often the network isn't working, but if I then go into oracle and ping 172.28.128.3 it'll find that and both ...
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84 views

How to create MPTCP connection using eth0 with failover to ppp0?

My embedded Linux system has multiple network interfaces, eth0, wlan0 and ppp0. I'd like to experiment opening a socket to a server via eth0, then take down eth0 and watch it fail over to using ppp0. ...
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103 views

connecting to a wifi using wpa_supplicant

I have some problems connecting to my WiFi (WPA2, standard settings) using wpa_supplicant. My /etc/wpa_supplicant.conf is as follows: network={ ssid="MYWIFI" psk=******** } then my ...
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1answer
197 views

How can i set-up VIOs multiple VLANs in our p770 box?

There's a requirement setup needs to address to our pSeries box. We have one p770 box intended to setup UAT and Development VM Clients, but the requirement is to set different VLANs per Environment ...
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41 views

Application becomes non-responsive to requests on Raspberry Pi

I have written a Python application (using Flask, if it matters) that serves a simple website that I can use to start playback of streaming video on my Raspberry Pi (microcomputer). Essentially, the ...
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20 views

E1000 Hardware loopback mode for custom driver

The e1000 (82541) has an internal loopback feature. What's not clear from the Intel SDM is when this is enabled does it just test itself and then reset, or do all packets sent route back to the ...
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95 views

problem with airmon-ng start waln0

I'm new in Kali Linux, I have a USB wireless adapter, Realtek RTL8187 wireless802.11b my command airmon-ng it shows the waln0, but when I type the command airmon-ng start waln0. It doesn't show ...
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210 views

BSNL 3G USB modem not connecting

I am using Arch linux (fully updated). I have been trying to get my BSNL 3G usb modem to work to no avail for the past couple of hours. I have already installed modeswitch, wvdial, modem manager, ...
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84 views

OpenBSD Atheros AR8151 no Ethernet media present

I installed OpenBSD 5.5 on an ASRock AD525PV3. The board uses the mentioned Atheros LAN. It shows alc0 on ifconfig, but the media only has Ethernet manual, and I can't use the LAN. Is there a way to ...
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46 views

Xen Domain0 cannot access internet while DomainU can

I am Using all this setup on VirtualBox VM with network interface NATing with original Windows machine. I have installed Xen on Ubuntu 12.04. From Dom0, I could access internet before I installed ...
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756 views

Help with Setting up network connection in Debian 7.5.0

I'm a beginner using Debian. I've just installed Debian 7.5.0 amd netinst. When I execute apt-get update I get errors like: Could not resolve 'http.debian.org' Thus I changed the mirrors several ...
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662 views

How to setup proxychains in VirtualBox Guest Kali Linux

I've been following directions from this book "Kali Linux Cookbook", but I can't get proxychains to work. The OS is Kali Linux and running inside VirtualBox. The guest network is a Bridged Adapter. ...
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24 views

Networksetup, how do I make an IF loop for error on connection?

I'm attempting to connect to a network in Mac OSX with this command: networksetup -setairportnetwork eno "NETWORK_NAME" and can most often connect to the network. But I need to make an IF loop for ...
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19 views

How to stop network mount for a specific logical interface definition?

I am running Debian with two logical interface definitions in /etc/network/interfaces. iface switched inet dhcp iface crossover inet static In /etc/fastab I have a CIFS mount definition, which gets ...
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29 views

How to use networks default gateway dynamically? [duplicate]

I want to use specific interface for specific use from different different application. I am using Ethernet, Wi-Fi and 3G modem interfaces in my embedded Linux set-up. Now my set-up is up with ...
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169 views

What is wrong with these iptables' rules?

The following is what I got after googling: iptables -A INPUT -i lo -j ACCEPT iptables -A OUTPUT -o lo -j ACCEPT #allow loopback access iptables -A OUTPUT -d 255.255.255.255 -j ACCEPT #make sure you ...
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3k views

Setting up hostapd with a iwlwifi device to run a hotspot

I am trying to configure my opensuse 13.1 system to function as a hotspot (on my dell xps13 computer). So I tried setting up hostapd as explained here, but I get an error: hostapd ...
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46 views

pfSense and Belkin Integration

I am in a unique situation. I want to have my previous Linux box as a router, but I don't have wireless capability on it or even a second ethernet port, so I was wondering if there was a way I could ...
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1answer
405 views

How to add Ip Aliases with Two Gateway on same nic Centos

I have 2 allocated address range, example 10.10.12.25/28 10.12.12.24/28 How to add Ip Aliases with Two Gateway on same nic with Centos?
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72 views

netatalk virtual users using ftppasswd (not found) on Debian wheezy

I configured my ProFTP server for using virtual users using the ftp.passwd file. Then I used the following command to add a user: ftpasswd --passwd --name developer --uid {www-datas uid} --gid ...
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1answer
130 views

How to access my webserver from the host machine? [duplicate]

My host OS is Gentoo, guest OS - Fedora. I have a web server on Fedora on port 8686 and it works perfectly on guest OS, but I can't access it on my host OS. I tried to use bridged network (then I got ...
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1answer
66 views

How to connect to wifi on a Gnome 2.24.1 system?

A friend gave me an old laptop running Gnome 2.24.1. It's been in storage for years but seems to run fine, albeit with this old OS. Now, I don't know too much about Linux, but I'd like to set it up ...
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121 views

no network connection

I am Newbie to CentOS. I have problems with my network connection eth0 I created /ifcfg-eth0 file since it was not present at /network-scripts. I tried ifconfig which does not display eth0. I have ...
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126 views

linux VM ware + ifconfig

I have linux machine red-hat 6.3 VM machine when I run the command ifconfig -a I see also the interfaces - virbr0 and virbr0-nic what I want to get is only the interfaces eth0 and lo without ...
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42 views

Ubuntu + CISCO VPNC CLIENT for my new ubuntu version (32 bit )

I have newest Ubuntu Linux version 10.04.4 (32 bit ) I want to install Cisco VPNC client on this linux machines in order to connect to other customers I little confuse , which VPNC cisco version ...
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1answer
1k views

Set up network with static IP and wpa_supplicant on Debian

On Debian, I am trying to set up my network to use ad-hoc mode with a static IP address. I also want wpa_supplicant to be running so that I can scan use it to scan for WiFi networks in range. To get ...
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3answers
99 views

iptables rules - input and output

I'm new with Linux and iptables. I have a Ubuntu Server distro (12.04) on a PC which has 2 network interfaces (eth0 and eth1). I also have 2 laptops, one is plugged to eth0 and the other to eth1. ...
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108 views

Unidentified network connections

I have an external-facing ftp/webserver (with virtual hosts) running Ubuntu 12.04LTS, and I have some concerns about some network traffic I'm seeing. Some background. I tried to be as preventive in ...
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42 views

Can slattach control a serial WiFi device?

I have a Wi-Fi device which is driven by AT commands over a USB-Serial connection. I am able to successfully make a serial connection to the device and set the SSID, PSK, obtain an IP address, and do ...
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2answers
101 views

how to get the return value of wpa_supplicant?

My question is really simple I want to get the return value of the command wpa_supplicant, when connected to the internet, to know that I am connected or not with a shell script.
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193 views

AiX topas snapshot to web

My script for taking snapshot from TOPAS looks like this: #!/usr/bin/bash whoami export TERM="xterm" (sleep 3; echo q)| topas -Emi 2 | \ tr -d '\r' | \ ...
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181 views

Access local UPNP and port forwarding while using OpenVPN

I have a laptop with Arch Linux and NetworkManager. When I connect to any wireless network I establish client OpenVPN connection to PrivateInternetAccess (my VPN provider) for privacy. SSH and ...
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87 views

Dell Inspiron 6400 wifi not working with Joli OS 1.2 - tried various fixes

I have been using Ubuntu, Xubuntu and Kubuntu a while now. I've just installed Joli OS on an old Dell inspiron 6400. I've read loads of fixes to get the wifi working but to no avail. I have tried the ...
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1answer
88 views

alternatives to adding entry in /etc/hosts [duplicate]

I would like to access a remote host using a short name. On a system where I have admin rights, I would achieve this by adding an entry in /etc/hosts file, something like this 121.121.122.1 ...