Ubuntu Networking :: Vpn - No Other Addresses Can Be Accessed Before Login

Jan 28, 2011

In order to get internet access at my school I have to log into a vpn. No other addresses can be accessed before login. With XP the login is authenticated through the browser (IE and Firefox supported) and run by a juniper network connect applet.

Now when I try to do this in firefox in Ubuntu it tells me that I'm not allowed to login. So I started doing a little research and found out that I should be able to authenticate with VPNC. Trouble is I can't get internet to install anything. Which means I have to download the packages in XP and reboot into Ubuntu. And every time I hit a snag I have to reboot into XP to look up what I need to do. So what I'm wondering is if there is some work around that will get me logged in (maybe through the browser authentication?) so that I can work through issues in one os instead of two?

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General :: Virtual Addresses Accessed By An App During Its Execution?

Mar 17, 2010

Get the list of virtual addresses being accessed by any application during its execution time. I don't want the complete memory map but just the pages which were accessed during an application's execution?

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General :: Get Virtual Addresses Accessed By An Application During Its Execution?

Mar 17, 2010

How to get the list of virtual addresses being accessed by any application during its execution time. I don't want the complete memory map but just the pages which were accessed during an application's execution?

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Software :: Get Virtual Addresses Accessed By An Application During Its Execution?

Mar 17, 2010

How to get the list of virtual addresses being accessed by any application during its execution time. I don't want the complete memory map but just the pages which were accessed during an application's execution?

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Ubuntu Networking :: Limiting When The Internet Can Be Accessed

Nov 30, 2010

I have a teenage daughter that understands Ubuntu, but not so much the terminal, and she does not know the superuser password. Unfortunately, she regularly goes on the Internet during the nighttime and in the early morning. What I am attempting to do is prevent anyone from going onto the Internet during the night (11 PM - 5:30 AM) unless they know the superuser password or a fair bit about the terminal.

I have already tried some commands, however all of them can be bypassed by restarting the computer. ex. sudo ifconfig eth0 down

For additional information on my Internet:

My Internet connection is relatively slow, so I would prefer if the solution does not hinder it any further. It is slow because there is no high-speed in my area, and I am forced to use Xplorenet -> "Fixed Wireless". I do not have a router.

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Ubuntu Networking :: Samba Share Accessed As Wrong User?

Apr 4, 2011

I've had a Samba share set up for awhile now on my Ubuntu 10.04 server. Now I'm trying to create separate shares for separate users. When I started, I was logging in from my Windows box where I was Tony, and the only user on my 'nix box was htpc. I had the majority of my file permissions as open.

Now, I've created new users on the server, including Tony. But when I open a Samba share from my Windows computer, it does so as htpc. This is not a setting I ever put anywhere. I don't care about specific user names, but I want to have a folder that only I can access from my Windows box, and for someone else to have a folder only they can access from their Windows box.

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Ubuntu Networking :: Mounting File System Accessed By SSH Tunnel?

Apr 23, 2011

I really like being able to mount remote file systems using the Places > Connect to Server ... tool on Ubuntu 10.10 -- it makes transferring files a breeze.

Unfortunately, the only way to access a particular server at work (call it Server A), is by first SSHing into an intermediate (Server B), which is the only one with a public ip.

My process for transferring files from Server A is currently:

myComputer $ ssh serverB
serverB $ ssh serverA
serverA $ scp file to serverB; exit
serverB $ scp file to myComputer

Needless to say, this gets tiring, and multiple transfers are slow.

Is there a way to mount serverA directly on my computer (by tunnelling through serverB in the background)? Failing that, how about using sftp?

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Ubuntu Networking :: Monitoring Accessed Websites In Home Network

May 11, 2011

I want to monitor the websites that people in my network are visiting.It's a home network with various devices (PCs, phones, Ipads), and a ubuntu headless server. I'd like to install some monitoring software on the server, which would ideally provide me a list of website the devices (attempted to) connected to.Does such a software exists?? Can I control it via Webmin. Would setting my NIC in promiscuous mode affect performance?

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Fedora Networking :: Browsing Website - Facebook Cannot Be Accessed

Jun 16, 2011

I am facing a problem in browsing website with F15 installation, both firefox and chrome browsers give me a headache. The main website that cannot be accessed is facebook.com, I only can browse it in certain of time after clearing cache, cookies and histories, this only happen for facebook web only.

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CentOS 5 Networking :: Virtual Host Entries Are Not Working When Accessed From External Static IP?

Jan 16, 2011

I had made following entries in my httpd.conf file at centos5.5.

###########################
Listen 80
Listen 8080
Listen 8085[code]....

When i am trying to access the any directory other on port *80, its not being accessible from the static ip which is routed through a DMZ server. http://122.165.35.9:8085 something like this returns the error "could not connect to web browser"

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Ubuntu Networking :: Cannot Correct The Web Addresses

Feb 24, 2010

I have a Dell Inspiron 1545 with Ubuntu Karmic that was working like a charm until last week.When I'm using my college's wireless I can browse just fine, but when I'm in my home's network the web addresses cannot be resolved.I was suspecting of DNS error, but it's the same DNS address in all the other computers, and the whole network is working just fine.The thing is that if I use the IPs, for instance 64.233.163.104 for Google, it works fine, both pinging and browsing. So the problem is in resolving the addresses...

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Ubuntu Networking :: Getting 2 Different MAC Addresses For Same Adapter

Jan 12, 2011

I am running a dual boot PC, Ubuntu 10.10 & Win7. I do sticky static IPs on my local network, but it doesn't work cause the Ethernet adapter gets a different MAC address in Windows 7 (EF:9F:E9:F7:F7:F7) than it shows for Ubuntu 10.10 (00:13:74:00:5C:3. I am not sure if this is a Windows problem or something up with Ubuntu. The card is an on-board Atheros L2 fast Ethernet adapter. I have tried updating the drivers in Windows & nothing is working.

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Networking :: How To Log Ip Addresses

Oct 29, 2010

Does anyone know a good program to log ip addresses when visited or connecting to your machine? Something like tcpdump but for ip addresses, I forgot what its called.

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Networking :: Two IP Addresses Using One NIC?

Feb 10, 2010

Is it possible to configure two IP addresses using one NIC? I'm implementing a VPN server on network 192.168.1.0, ultimately to be accessed over the Internet and through an ADSL router with port-forwarding to the server. Right now I'd like to test it on the LAN, but with the VPN client and server both on the 192.168.1.0 network, that test would not be be valid.

If I had a spare NIC I could put the server on both the 192.168.1.0 network and, say, a 10.0.0.0 network, configure the client on 10.0.0.0 and test. Not having a spare NIC, I'm wondering if it is possible to configure the server with two IP addressese NIC.Virtualising hosts are able to do something similar when running guests with NICs in bridged mode. Log files show they switch eth0 into promiscuouse.In case it matters the server OS is Slackware 13.0.

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Ubuntu Networking :: Upstart Vs. Multiple IP Addresses ?

Jan 27, 2010

I have run into a problem that I've tracked down to being a conflict between the "Upstart" init system, and how it handles multiple (alias) IP addresses per physical interface. The summary of the problem is that the interfaces are being configured in the background in parallel with the starting of daemons. One "feature" of this (apparently intended for pluggable devices that would add or remove an interface) is that the network daemons are restarted each time an interface is added (and presumably deleted). But this is a disaster when applied to alias IP addresses.

I first saw the effects of this when during booting Ubuntu Server, the screen showed a message about OpenSSH daemon being restarted ... several times a few seconds apart each. At the time I didn't know what was causing that, but didn't worry because it ultimately was running when I needed it.

But now that I am deploying these servers for specific duty with many IP addresses per system (per network interface), the symptoms are becoming serious, and I need a solution.

1. The IP addresses are coming online too slowly. Apparently the time it takes to restart each daemon is being added to each address being configured.

2. It appears to be disrupting some daemons sometimes. Occaisionally, some daemon just ends up being hung somewhere, or dies. Too many restarts.

3. Sometimes few or even no alias addresses get configured. This might be due to a daemon getting hung, and the whole sequence just not finishing.

4. The "nsd" name server as packaged by Ubuntu doesn't deal well with this at all. It needs all its IP addresses to be up when it starts, or else it won't start. The Ubuntu package of it doesn't including any if-up script at all, although I'm not sure that would do any good.

What I need is a way to configure all these alias IP addresses so they are all configured immediately when the point in time is reached to bring up network interfaces for the first time. These are all static, and all are aliases on ethernet NIC cards plugged into PCIe cards, or integrated in the mainboard. None of them are pluggables. I did run a manual test of "ifconfig" in a loop configuring 2540 alias IP address on eth0 and it only took 2 seconds (no if-up triggers or daemon restarts here). So I know it's fast if nothing else is done between these steps.

Even for pluggable physical interfaces, I see no reason to even try to step through every alias (if it has aliases) with a daemon restart. If an alias IP address is added on later, then I can understand doing it. But if you have a list of 100 aliases for a physical interface, they really should all be done ... or at least attempted ... at once, and do any triggers needed after that.

So, how can I configure or modify Ubuntu Server 9.10 to do that?

I have each alias listed in the "/etc/network/interfaces" file with a separate "auto" and "iface" section for each one, with sequential sub-interface numbers appended to the interface name. I tried it without those sections (e.g. just "address" and other items in sequence) and that prevents the system from even coming up (bootable CD to the rescue to undo that). At least cntrl-alt-del did reboot it.

I tried to attach the /etc/network/interfaces file, but I don't know if it worked because I see no confirmations about it. if it didn't attach and you need to see it, say so, and I'll just paste it in a followup.

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Ubuntu Networking :: Connecting To Wifi With 192.168.0.x Addresses

Mar 29, 2010

I've happened across a wireless router that has a gateway address of 192.168.0.1 and allots IPs from 192.168.0.64-255. My laptop wouldn't connect to it automatically, so I was playing around and found that it needed 0.x instead of 1.x. I thought the network manager on ubuntu would have figured that out?! Now its a separate story that the router happens to have no admin password

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Ubuntu Networking :: IPv6 Addresses Cannot Be Assigned

Sep 18, 2010

I'm trying to assign like 80 IPv6 addresses on eth0 for virtual webhosting, but after 55 addresses I get the following error:# ip addr add 2a01:9f8:a171:1651::4b:a8af dev eth0 RTNETLINK answers: File exists.What's the problem? I don't understand that error message at all. Is the number of IPv6 addresses per device somehow limited?Ubuntu 10.4.1 server, 64 bit.

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Networking :: Ubuntu 10.04 - How To Hide Addresses I Connected

Jul 15, 2010

I use Ubuntu Linux system 10.04 under a network. I think network admins can see the web pages I visited. How can I hide the the addresses I connected? Is there any way of that?

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Networking :: 1 Net Card With 2 IP Addresses?

Mar 11, 2010

Can I set 2 addresses for the *1* Ethernet card that I have on my motherboard? How would this scenario work?

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Networking :: Differences Between IP Addresses?

Apr 24, 2011

I've used two internet services to show me my IP address, and I get different results:1. Whatsmyip.org : ***.**.109.***2. ipchicken.com : ***.**.111.***All the * numbers are same, except 109 and 111. (or link me to explanation) of which one's which?

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Networking :: Get Two Ip Addresses To Communicate With Each Other?

Nov 19, 2010

How can I get two ip addresses to communicate with each other which are not in the same 255 range?

Like:

192.168.0.1
and
192.168.1.1

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Networking :: More Than One MAC Addresses On Single NIC?

Sep 25, 2010

My machine has ONE ethernet card and is on a LAN.IP address is assigned to hosts using DHCP.I can have more than one MAC address on LAN by running Virtual Machine and setting network to bridged. This way, my virtual machine simply acts like there is one more machine in the network.Running VMWare for this job is a a bit heavy on resources. Is there a way so that I can I can have 2 or more ip addresses with different MAC address on the same machine without having to run VirtualBox.

By googling, I think its related to bridging and tap. And, I am sure thatts NOT IP-ALIASING because in ip-aliasing both the ip addresses have the same MAC address.Basically, I want my system to have interfaces like:-eth0 - which was originally presentlo- thats always present :|newint0 - New interface with new MAC address and IP addresses which can access my LAN directly. Its like if I bind, let us suppose curl to this interface, its like a different connection

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Ubuntu Networking :: Cant See Samba Shares After Changing IP Addresses?

Feb 27, 2010

i have a file server running kubuntu and samba, when i plugged it into a different router, the router assigned it a different IP address (as I expected - its using DHCP) - but the old router was supplying 192.168.1.x type IP's and now the new router is suppliing 10.0.0.x type addresses.I now cannt see the samba shares on the file server.the computers can ping each other and they have working connections to the internet

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Ubuntu Networking :: How To Determine Addresses Of Servers Connected To In XP

Apr 5, 2010

I'm running a dual boot system at work. I'm connected to a few shared drives in XP, and would also like to connect to them while using Ubuntu.How do I determine the addresses of the servers I'm connected (mapped) to in XP?

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Ubuntu Networking :: Getting Dynamic Ip Addresses For Multiple Interfaces?

May 6, 2010

I have 4 Ethernet Interfaces. I need Dynamic IP-Addresses for 2 Interfaces. Can anybody help me how can i achieve that

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Ubuntu Networking :: DHCP Server Not Handing Out Addresses?

Oct 20, 2010

I have a MacBook Pro running VirtualBox with Ubuntu 10.10 as a guest. I am trying to run a DHCP server from within the Ubuntu VM. I need to do this in order to run a multicast utility. On a stand alone machine running Fedcora I have this working without fail but within the Ubuntu VM I am having troubles. The DHCP server is starting okay, but when I use a cross over cable connected to a device the device does not ever get an address.I have eth1 bound to my ethernet jack where I am trying to source the addresses, and eth2 bound to my airport which is disabled unless I need internet access.Here is my DHCP.conf file

Code:
###############################################################################
# Amino Communications Sample dhcpd.conf file #

[code]....

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Fedora Networking :: How To Assign Two IP Addresses To One NIC

Jul 29, 2009

I have connected my computer to network. Computers in network have dynamic ip address which is assigned by ADSL modem's DHCP. Besides this I want to have static IP address for same NIC. So is it possible to have both static and dynamic IP address for single NIC? If so how can I assign it using command and also in GUI?

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Networking :: Accepting Connections To IP And Mac Addresses?

Nov 30, 2010

I would like to know if a rule has been applied to the iptables.active file to accept direct connections on port 22 through an IP address, can I also add a mac address/addresses to the rules such that if I am not on the network with the accepting IP address, that my MAC address will still get me in?

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Networking :: Apache Allow Fixed Ip Addresses

May 23, 2011

I would like have a password for accessing my web site which works fine. I also want for the specific site to allow access only for a specific range of ips. Right now the following config should forbid my access, as my ip is different from 200.200.200.*

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Networking :: How To Determine Ip-addresses Of ISP's DNS Name Servers?

Dec 7, 2008

I am looking for a command which, when typed from the command line, returns the ip-addresses of the DNS nameservers that my ISP is using.I think is should be technically possible to write a program that does this, because linux installers set up /etc/resolv.conf correctly (as does knoppix). But I've been unable to find a command that does it. Is there one, and if so, what is it called?

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