Networking :: Configure An Ip Address For Ubuntu?
Apr 25, 2011The configuration is completely different than any other version of linux i've used.
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Networking :: Configure An Ubuntu 8.04 LAN Connection To Use More Than One IP Address?
Jun 21, 2010In WindowsXP I am able to assign multiple IP Addresses to a single LAN Card/NIC Port by clicking "Internet connections> Local Area Connection>Internet Protocol (TCP/IP)> Advanced> Add".
Is there a way to configure an Ubuntu 8.04 LAN connection to use more than one IP address?
Networking :: Configure To Resolve For Hostnames When An IP Address Is Provided To DNS Server
May 21, 2010How do we configure to resolve for hostnames when an IP address is provided to the DNS server.
Things I tried
The DNS daemon was started by the resolution failed. Find the logs below
** server can't find 11.127.168.192.in-addr.arpa: NXDOMAIN
Networking :: Configure A (openSUSE) Client To Dhcp To EBox DHCP Server - Lease An IP Address
Mar 25, 2010I am puzzled with trying to configure a linux (openSUSE) client to dhcp to eBox DHCP server. I am using dhclient to lease an IP address with dhclient eth0 -s 10.45.48.108 and get a response
openSUSE11232CL1 dhclient: DHCPDISCOVER on eth0 to 10.45.48.108 port 67 interval 4
openSUSE11232CL1 dhclient: DHCPOFFER from 10.45.48.108
openSUSE11232CL1 dhclient: DHCPREQUEST on eth0 to 10.45.48.108 port 67
openSUSE11232CL1 dhclient: send_packet: Network is unreachable
openSUSE11232CL1 dhclient: send_packet: please consult README file regarding broadcast address.
The server reports eBox141 dhcpd: DHCPDISCOVER from 00:0c:29:3e:57:a3 (openSUSE11232CL1.domain.net) via eth0
eBox141 dhcpd: DHCPOFFER on 10.45.200.2 to 00:0c:29:3e:57:a3 (openSUSE11232CL1.domain.net) via eth0
I interpret this as the server receives the request and the client accepting it but the lease does not last long and the connection breaks. what this could be and why the connection breaks? Or my undestanding is totally wrong on how it works and should work? And BTW, where is that README file that's referenced in the message I receive on the client?
Ubuntu Networking :: Port Forwarding From Public Address To Private Address?
Feb 24, 2010Currently my OS is Ubuntu 9.04 Jaunty Jackalope Desktop OS and my web server is Apache2. I have a public address 60.x.y.z and my pc local address is 10.x.y.z. I have a web app in my Apache2 which currently run in localhost(10.x.y.z).
I would like to enable the web app so that it could be browse from outside. I know there maybe some port forwarding process and some commands involved in order to do that. But I have no idea on the steps to do that.
General :: How To Configure IP Address / Gateway In Ubuntu 9.10
Mar 2, 2010As a new user I like to know how to configure ip address, gateway etc in ubuntu 9.10. I used opensuse 11.1, their I can manage to do these but ubuntu I did not find anything.
View 2 Replies View RelatedUbuntu Networking :: Static IP Address And The Install Configures For A DHCP Configured Address - Network Not Starting
Dec 16, 2010Version 10.04 LTS. Installed desktop version and network worked but I needed a static IP address and the install configures for a DHCP configured address. I tried changing to static address using the System->Preferences->Network Connections application but was unable to get the system to come up with the network up.
So I manually modified the /etc/network/interfaces and the /etc/resolv.conf files. I restart the system but when I do an ifconfig, I don't see a configured IP address on eth0 (only the loopback address). If I run /sbin/ifup eth0 everything then works fine and ifconfig shows the correct address bound to eth0.
My files are as follows:
Ubuntu Networking :: IP Address Set To Manual But Still Queries DHCP For Address
Mar 12, 2011I'm running Ubuntu 10.10 and I'm having problems trying to assign it a static IP address. No matter what I put in the Preferences->Networking area (identifying the interface as Manual)... it still will query DHCP for an address if I run the dhclient command. I'm using to using ubuntu server where I just set the IP in the interfaces config file.
View 1 Replies View RelatedUbuntu Installation :: Configure A Static IP Address On Karmic?
Jan 22, 2010I am currently using transmisson on ubuntu 9.10 however want to switch over to Utorrent using wine to get more options as rss feeds etc.. I will still use transmission some aswell.
I want to see if there is a guide on how to configure a static IP address on karmic?
I have found the following how to on port forward (my router WNDR3300 for utorrent) [URL]..but this pertains to using windows and not linux. I am also a linux noobie.
Ubuntu :: Unable To Configure Ip Address - Unknown Host.
Aug 10, 2010this issue which has suddenly occurred on both my Desktop and my Laptop. When I try to configure an IP address to any interface I get the following error....
uadmin@Ubuntu:~$ ifconfig br0 addr 192.168.10.1/24
addr: Unknown host
ifconfig: `--help' gives usage information.
uadmin@Ubuntu:~$
I get this for ethernet interfaces as well. I do not understand what is different as I was able to configure the ip address only the day before yesterday on the laptop..? The Desktop has had this issue for about 3 weeks now.
br0 Link encap:Ethernet HWaddr 32:70:40:91:06:25
inet6 addr: fe80::3070:40ff:fe91:625/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
[Code]....
Fedora :: Configure A Static IP Address (14)?
Apr 3, 2011I am trying to establish a static IP address using the instructions I found at:I cannot find this file in Fedora 14:Code:/etc/sysconfig/network-scripts/ifcfg-Auto_eth0
View 8 Replies View RelatedNetworking :: Error Str2addr:Address 35 Outside Range Of Address Field Length 1?
May 12, 2011I am working on implementing a protocol on NS2.34 .I really need help to solve this problem . Actually , I don't now whether the problem is generated by the tcl code or the c++ code when I run the simulation, I get this result :
Code:
num_nodes is set 64
INITIALIZE THE LIST xListHead
34
45
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
code....
Networking :: Program To Assign Globa LIPv6 Address And Bind() To The Previously Assigned Address?
Apr 24, 2010Consider the following program:
Code:
#include <stdio.h>
#include <stdint.h>
[code]...
General :: Can't Configure Ip Address On Lynux Enterprises 5
Apr 14, 2011i have installed lynux entrprises 5 but i cant configure my ip address on that..whenever i tried to open an eth0 it gets some error. i m using inteldg41ty motherboard and 160 gb hd,1 gb of ram how can i solve this problm..?
View 3 Replies View RelatedNetworking :: Dynamic IP Address With PTR Record Versus Fixed IP Address Without?
May 7, 2010I am running my own Postfix mail server. Some time ago I noticed that most email was rejected because of the server's dynamic IP address. So I got a fixed IP address. However then I noticed that some mails got rejected due to failing the reverse DNS check. So my ISP told me to get a range of IP addresses and they could then create a PTR record for one of those addresses. That is now running but it turns out that the IP address used for the PTR record is a ... dynamic IP address. So Spamhaus PBL rejects my emails again.
View 1 Replies View RelatedUbuntu Networking :: Obtaining Ip Address From Mac Address?
Oct 6, 2010In my job I use some ethernet embedded devices. They take an ip address from dhcp server or auto ip. I only know mac address.How can I obtain ip from mac address? In other words I need a rarp packet generator.
View 6 Replies View RelatedNetworking :: Bind External IP Address To Internal IP Address?
Jun 7, 2009I have a few external IP's assigned to me by my ISP. I have IPcop as my router/firewall. I am wondering how to bind 1 of my external ip's to my internal ip address. So I do not have to port forward, etc. For Example, 77.77.77.77 to 192.168.1.123 and on the server it see's the external IP address.
View 2 Replies View RelatedOpenSUSE Network :: How In World Do I Configure SSH With DHCP Assigned Address
Aug 7, 2011I am just trying to get SSH working between 2 local machines on OpensSuse 11.4 boxes. I have the SSHD daemon running, the firewall is configured to allow SSH to pass, and I am using SSH's password authentication. However, my machines cannot see each other. Anytime I try to SSH, I get "Could not resolve hostname<hostname>: Name or service not known."
Of course, that leads me to believe I need an entry in my /etc/hosts file. However, I use DHCP, and therefore have a dynamic IP address. Therefore, my hosts names will only be good until the next IP renewal. How in the world do I configure SSH with a DHCP assigned address?
Server :: Configure Apache To Host 5 Domains As Virtualhosts In The Same IP Address?
Jun 2, 2011I've been for a while trying to configure my apache to host 5 domains as virtualhosts in the same IP address, but seems that neither one makes it through... it always takes first one, because it is the default:
NameVirtualHost *:80
<VirtualHost *:80>
ServerAdmin xxxxxxx@xxxx.net
[code]....
As you can see I tried the ServerName with the http://, in quotes, without it...
Networking :: (98)Address Already In Use: Make_sock: Could Not Bind To Address [::]:443?
Oct 28, 2010I dont know for what reason, since 2 days, I started having this message whenever I try to start httpd.I commented "Listen 443", restarted httpd started correctly. I needed to comment "listen 443" in order to be able to start httpdWhat is strange is when I do
Code:
telnet mylinux 443
it responds
[code]...
Networking :: Assign A Address To Ethernet Address?
May 29, 2011how to assign a address to my ethernet card all the options available
View 1 Replies View RelatedFedora Servers :: Configure Email Address Alias Using Regular Expression In Postfix?
Mar 8, 2010I am trying to configure virtual alias using regular expression.
For example :
Email send to user.1@example.com and user.2@example.com will deliver to user mailbox.
Email send to user2.1@example.com and user2.2@example.com will deliver to user2 mailbox.
And the numbers or alphabet in between user name and the domain will be vary , I can't just do a normal alias.
I been try to play around with main.cf and the virtual alias table but still not able to get work. So I am not sure is the main.cf didnt configure correctly or the regular expression is not working.
Networking :: Renew Ip-address With Mac-address?
Jan 18, 2010I have a dedicated control computer that can only be accessed with web-browser (with its ip-address). My DHCP-server gives a static ip-address to the control computer (base on its mac-address). Somehow and after some time the control computer looses its ip-address (can't ping to it any more) ... and then I have to reset the control computer to get it to pick up the ip-address ... this is not a good solution since the control computer is not nearby. is there a way to force the control computer to renew its ip-address based on its mac-address
View 1 Replies View RelatedNetworking :: Trace An IP Address To A MAC Address?
Apr 18, 2011My security software has picked up multiple port scanning detections on my router/network and only the IP addresses are available. Is it possible to find out what the remote mac address is to see if the IP source has been spoofed? I've got a couple of different IP sources which were found scanning my ports.
I don't know if my IP and the remote IP address are on the same network or subnet for that matter which is the reason for my wanting to know what the mac address is to find out if its coming from the same remote machine.
Server :: Configure Address Of Next Level DNS In BIND Server?
Sep 24, 2009I need to know how to configure the address of the next level DNS server in my BIND server. im in a FEDORA 10 system.
View 3 Replies View RelatedNetworking :: Get The Mac Address From Given Ip Address?
Oct 1, 2010how to get the mac address from given ip address
View 3 Replies View RelatedUbuntu Networking :: Networking Involving Multiple IP Address Types - 192 And 172?
Jul 6, 2011I have one router, a linksys. It allows wireless and wired connections, as is normal. I have two XP machinesby wire to the router and three linux machines connected wirelessly. The XP machines both have IP addresses beginning with 192.168. while my three linux machines have IP addresses that all begin with 172. None of the machines is connected with a static IP address. All are automatic DHCP.I am told that the above scenario makes no sense. However, such is what I have so, I trust, the theory and the fact do not gel. I would not care except that I cannot see - using the nautilus network servers program, all of the XP computers with some of my linux boxes.
View 9 Replies View RelatedNetworking :: Networking Routing \ Use The Terminal To Assign Server Eth0 A Proper IP Address?
Jun 8, 2010i know exactly what i need to do, im just not familiar enough with command line to do it properly.i have 7 computers.the first 4 are connected to a router via wireless at one end of the house. of the last 3 only 1 will be able to access the router via wireless, so it needs to share it's one wireless connection via ethernet. this computer i'm going to call 'server'server will have two IP'swlan0 192.168.1.6 this connects to the router that has internet access.eth0 i intend to have the following settingsip:192.168.0.1sub: 255.255.0eth0 will connect to a second router, where the cat5 cable goes from the server, into the internet port of the router where i will define the router's static IP:IP: 192.168.0.100sub: 255.255.255.0gateway 192.168.0.1i have then set the router IP for LAN handling as 192.168.27.1 and all ethernet connections will have a 192.168.27.x IP.
so i need to know how to, without a gui application, use the terminal to assign server eth0 a proper IP address, and tell the server to take the connection it has and share it through eth0 to supply internet for the last 2 computers via ethernet.i had it set up in this way with a windows machine being the one that had the wifi access, but i'd rather have it setup for the ubuntu server to do this task. security is imperative for these 3 remaining machines, so just getting 2 more wifi adapters for a connection to the initial router isn't an option.the 2 that connect to server do so through SSH and though server IS connected via wireless it only makes outward connections through
Ubuntu Networking :: Get IP Address Behind NAT?
Apr 7, 2010i want to get IP Address of users behind NAT..(192.x.x.x)is it possible?the topology:wireless AP using NAT (192.x.x.x) => Local Area Network (172.x.x.x) => Internet
View 2 Replies View RelatedSecurity :: Address Space Randomization On 2.6.28-15-generic Ubuntu 9.04 - Finding Base Address?
Sep 14, 2009Im an academic (university networks and security lecturer) studying/teaching network and operating system security, and inspired by the work of Hovav Shacham set about testing ASLR on linux. Principley I did this by performing a brute force buffer overflow attack on Fedora 10 and Ubuntu 9. I did this by writting a little concurrent server daemon which accidently on purpose didnt do bounds checking.
I then wrote a client to send it a malicious string brute forcing guessed addresses which caused a return-to-libc to the function usleep with a parameter of 16m causing a delay of 16 seconds as laid out in [URL] Once I hit the delay I new I had found the function and could calculate delta_mmap allowing me to create a standard chained ret-to-libc attack. All of that works fine. However .... To complete my understanding I am trying establish where I can find the standard base address for ubuntu 9 (and other distros) for the following, taken from Shacham:-
Quote:
[code]....
/proc/uid/maps gives me some information but not the base address ldd also gives me the randomised starting address for sections in the user address space but neither gives me the base address. Intrestingly ... when a run ldd with aslr on for over (about) 100 times and checked the start point of libc I determined that the last 3 (least significant) hex digits were always 0's and the fist 4 (most significant) where between 0xB7D7 and 0xB7F9. To me this indicated that bits 22-31 were fixed and bits 12-21 were randomized with bits 11-0 fixed. Although even that doesnt define the boundaries observed correctly.
Note: I am replicating the attack to provide signatures to detect it using IDS, and for teaching purposes. I am NOT a hacker and if needed to could reply from my .ac.uk email address as verification.
