Error Siocsifflags Permission Denied
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Ifconfig Siocsifaddr Permission Denied
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Siocsifaddr Operation Not Permitted
Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: rtnetlink answers: permission denied Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Why is dhclient saying: “SIOCSIFADDR: Permission denied”? up vote 8 down vote favorite 3 I have encountered a very weird error on ubuntu-server (8.04), I have no idea why dhclient is not allowed to ifconfig siocsifhwaddr operation not permitted set the network settings! I'm not the one who installed the server in the first place, so i don't know much about the setup. The server is only used as a firewall/gateway (custom iptables script) it's got three nic's one for internet, one for LAN and one for DMZ. Now the ISP have changed settings from static ip to "static" ip assigned through dhcp, and i cant really use it. Sadly I can't just set the IP statically since the ISP closes my connection when the dhcp lease ends :o This is the error i get: (and then it just hangs there..) root@fw:~# dhclient eth2 Internet Systems Consortium DHCP Client V3.0.6 Copyright 2004-2007 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ SIOCSIFADDR: Permission denied SIOCSIFFLAGS: Permission denied SIOCSIFFLAGS: Permission denied Listening on LPF/eth2/00:50:52:c1:a1:32 Sending on LPF/eth2/00:50:52:c1:a1:32 Sending on Socket/fallback DHCPDISCOVER on eth2 to 255.255.255.255 port 67 interval 8 DHCPOFFER of 2.10.56.19 from 93.87.36.42 DHCPREQUEST of 2.10.56.19 on eth2 to 255.255.255.255 port 67 DHCPACK of 2.10.56.19 from 93.87.36.42 SIOCSIFADDR: Permission denied SIOCSIFFLAGS: Per
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Siocsifaddr No Such Device
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Change Ip Address Linux
question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are http://askubuntu.com/questions/5187/why-is-dhclient-saying-siocsifaddr-permission-denied voted up and rise to the top Privileges for ifconfig up vote 2 down vote favorite 1 In order to do ifconfig in Linux and change the IP and VIP does it require root privileges? Or it is also possible to do this via a non-root account? linux unix ifconfig share|improve this question asked Feb 20 '13 at 19:15 user76678 209411 2 All system-wide configuration is http://serverfault.com/questions/480812/privileges-for-ifconfig restricted to root, for obvious reasons. You can set up sudo(1) to allow selected users to run some programs as other users with the corresponding privileges (including root). –vonbrand Feb 20 '13 at 19:18 @vonbrand That's an old view of Unix systems. In modern Linux, UID 0's power is only traditional as far as function goes. Capabilities are the defining matter, so any user can be given all or portions of that power. Similarly, a system can have a root / UID 0 user with no special privileges. –Jeff Ferland Feb 20 '13 at 21:06 @JeffFerland, that is true (I remember some SELinux experiment with a machine with root without password exposed to the Internet), but most systems are still managed the traditional way. –vonbrand Feb 20 '13 at 22:25 add a comment| 3 Answers 3 active oldest votes up vote 9 down vote accepted You do not need root access to use ifconfig to change IP addresses, only CAP_NET_ADMIN. Let's create a copy of ifconfig with CAP_NET_ADMIN enabled to see this: cp /sbin/ifconfig . sudo setcap cap_net_admin=eip ./ifconfig ./ifconfig eth0 1.2.3.4 # succeeds # Wouldn't want to leave this copy of ifconfig around, #
06:47 AMdear all.. i usually work with several static ip address, its so boring to change my ip address manually,doing ifconfig eth0 down and up,everytime could you help me write a (shell/bash??) script that can be https://ubuntuforums.org/archive/index.php/t-1127043.html use to change ip address,subnet mask,Gateway, and dns? automatically i want that script executed with https://dalewifisec.wordpress.com/2014/03/12/how-to-fix-the-siocsifflags-error-in-kali-linux/ double click. thanks for all the advice celthunderApril 16th, 2009, 06:52 AM#!/bin/sh ifconfig eth0 down; ifconfig eth0
in KaliLinux I recently rebuilt my laptop and reloaded the applications I use for pentesting including Virtualbox and Kali Linux. If you need help setting up Kali Linux in Virtualbox here is a great link that walks through the setup process. Once I had Kali up and running in my virtual environment I plugged in my ALFA wireless adapter and made sure the USB device was running in the virtual environment. I ran iwconfig to verify the wireless interface. So far so good and I ran ifconfig to verify the interface was up, but the only interface returned was the loopback. After discovering the wireless interface was not up and I ran ifconfig wlan0 up to bring it up and got the SIOCSIFFLAGS error. I wrote about this error a while back when I was running Backtrack 5 and I first started using the Fern WiFi Cracker. I decided to expand on that post plus I was asked about creating a script to run all the commands at one time instead of typing them individually. The script should be run every time Kali is booted, but after your adapter is plugged in and recognized. First open a text editor and type in the script shown in the screen shot below. I prefer the gedit text editor and since that is not loaded in Kali I used Leafpad and coming from the Windows world it reminds me of Notepad. Name the file and save it to the Root directory. Open the Terminal window and do a quick ls command to verify the file is present. To run the script type ./