Networking :: Ssh Isn't Working For Some Domains (VPN), But Virtualbox Can Connect?
Jan 4, 2011
As of yesterday I have this perculiar problem. When I try to ssh into my account I have on a linux server where I keep some of my files (I'm using Cisco VPN) ssh claims it can't find the address.It's worked fine before, and if I connect using putty in Virtualbox on the same machine it works.The problem applies both to command line ssh and NetBeans (which uses a java client).I've tried setting SSH not to resolve DNS in the config file but it doesn't help.
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Aug 21, 2010
VirtualBox-3.2.8 (the non-free version) seems to be able to tell my wlan0 connection to 'split' into 2 IP addresses: one for the OS inside VirtualBox and one for the host. My router runs Tomato and I can see both real and virtual machines with different IP addresses in the device list (I can also visit httpd running on my host machine from inside the virtual machine). Is it possible to replicate this outside of VirtualBox?
In my case, I would like to be able to 'split' wlan0 into 2 with one IP address for normal network use and the other 'assigned' to eth0. eth0 is "shared to other computers" from NetworkManager and is currently connected to a Belkin router. My goal is to have this Belkin router assigned an address that all machines in my Tomato network can access (I have an OpenBSD 4.7 home server connected to the Belkin).
Whilst VirtualBox was running I tried to see if bridge-utils was being used:
Code:
[root@1 ~]# brctl show
bridge namebridge idSTP enabledinterfaces
...but it appears as though it isn't.
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Aug 31, 2010
connect my Ubuntu 10 edition to internet through nokia 5630 xpressmusic. also i am not at all aware of the commands used in ubuntu.. if any body having help file abount basic installation commands. install virtualbox inside Ubuntu10. i downloaded the package fro site.but it shows dependance error..
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May 18, 2011
I am using squid 3.1.12 as a proxy cache. All the requests initially land on a Apache server which acts as a reverse proxy server, the Apache redirects some URLs based on the context to Squid server. This Squid server based on the URL needs to forward the request to the specific tomcat server where the application is deployed. I am able to configure just for one application but how do I configure multiple tomcat servers(each tomcat having different application deployed on it). Squid needs to redirect based on the URL.In Squid.conf I made the following changes
[URL]
cache_peer abc.dev2.xxx.com parent 8080 0 no-query originserver refresh_pattern -i /ABC144020%1440 override-expire override-lastmod reload-into-ims ignore-reload
#cache_peer def.dev2.xxx.com parent 8080 0 no-query originserver
[code]....
Here Squid is deployed on my host [URL], Apache redirects any URLS with the context 'ABC' or 'DEF' to squid. Squid needs to redirect it to the individual hosts thats [URL] or [URL] based on the URL. I have commented the entry for DEF in my squid.conf as it was not working. But it does work for any URLs with ABC as the context.
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Aug 8, 2010
Our company uses a customized vpnc (based on and almost the same as vpnc 0.5.3). I first tested it on a Windows host under Virtualbox everything works straight away. But when I want to use it on a Linux host directly it always ends in "No response from target". I have tested this on Fedora 12 and the latest Ubuntu.
I thought of firewall settings but iptables -L on Ubuntu returns an empty list even.
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Sep 15, 2009
I have a Dell PowerEdge 1650 server with 3 NICs in it. I am trying to use one NIC (eth0) to connect to the internet, the second NIC (eth1) to share the internet connection to a LAN, and the third NIC (eth2) to connect to the LAN.
It is running Ubuntu server 8.10
The problem that I'm having is that NetworkManager (version 0.7.0) keeps setting eth2 as the default connection, and then I don't get any internet at all from the server.
My main goal is to be able to share files from the server to computers on the LAN. The secondary goal is to have a virtual machine hosting a Halo server, connected through eth2, so that it can host LAN games. But that is a secondary goal after I get the connections to work.
I've been looking around and finding other people who have done bits and pieces of this, but not the whole thing. I had been hoping to simply use the NetworkManger, but I don't mind editing config files.
Also I can't seem to find any good instructions on editing the /etc/network/interfaces file. The man file is incomplete, and everything seems to point back to the man file.
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Oct 30, 2010
Here the problem Ping to [URL]... works ok.
[Code]....
I thought, perhaps from one and one, have public IP blocked, but the funny thing is that from another PC that I have at same room (with Ubuntu 10.04 too) connected to the same internet connection (with the same public IP Address) works perfectly. What else can I check?
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Jan 25, 2011
Can ubuntu be configured to reserve more bandwidth for some domains at the expense of others?
Eg you are browsing facebook and data comes faster than on a tab where you are browsing ......
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Dec 2, 2010
I run Ubuntu 10.04 on a PackardBell laptop, with an Orange Livebox 2 providing ADSL. I am connected to the Livebox via WiFi, but I can't connect using the ethernet cable. I think that in making changes to the system some time ago I must have ruined something, but I can't work out what.
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Feb 19, 2010
I'm on Debian Lenny/Gnome 2.22.3 Whatever the web browser I try, I can't connect to ".fr" websites. ping and dig do nothing dig : connection timed out; no servers could be reached ping: unknown host google.fr
I still can access any other domain name with absolutely no problem. What am I supposed to configure to allow .fr too ? Is it a DNS problem or something ?
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Feb 27, 2011
I'll post an scenario and hopefully you can help me understand the concept and put me in the right track and do what I intend, if possible. Let's say I have a dedicated server with 2 static IPs each with an associated domain, let's call them www.site1.com and www.site2.com. Now, apache is running on it, I'd like to redirect anyone coming from site1.com to /home/site1/public_html and anyone coming from site2.com to /home/site2/public_html.In short, apache serving 2 entire roots depending on the accessed IP/domain. Whether the sites root are in the same parent folder, such as /home/site/site1_public_html and /home/site/site2_public_html or like above doesn't really matter, as long as it works.Additionally, do something similar with Postfix, so that I can have it running imap/smtp for foobar@site1.com and foobar@site2.com on the same server.At this moment, both apache and postfix are working, and we host only www.site1.com with the respective foobar@site1.com. But I'm not sure how to proceed or even if it's possible to achieve the above solution.
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Dec 22, 2010
I have a virtual machine with two network interfaces. Now I wanted that both are part of different domains and tried to configure that with system-config-network. But there I only could change the the domain for the entire system. Is it possbile to edit the Domain for each network interface. If yes how?
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Aug 4, 2011
I have new emachine 1401 and I can't get it to connect to wireless. It does detect networks but when connecting keeps asking for password over and over and never connects. I don't have wired connection at all and the wifi router is not managed by me, so I'm retyping output through my windows xp samsung netbook which works over the same wireless network...
I have tries some other solutions I found around here (install bcmwl-kernel-source, rt3090-dkms_2.4.0.4, blacklist rt2800pci...) so it's not original configuration but behaves exactly the same.
[Code]..
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Apr 17, 2009
What are they? Before they were not required to set up an internet connection(wired, I'm giving up on wireless for the moment) and now they are. I asked the lady at my isp and she didn't know. What should I enter in the blank for search domains?
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Feb 25, 2010
I am having trouble adding additional search domains to ubuntu. I can add them to resolve.conf, but networkmanager will keep overwriting it. Is there somewhere else I can add the search domains?
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Nov 29, 2010
I'm finding that I can not resolve .local domains anywhere except with nslookup and found on the LucidLynx release notes that there is a problem with avahi causing this. Although the avahi service is convenient for locating printers and such can anyone else tell me what other services/options will be impacted on a default installation of Ubuntu if I disable this service?
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Feb 11, 2011
I have two virtual hosts that I want to be able to send through one router. I have two seperate dynamic hostnames on dyndns.
Apparently my router allows me to enter two seperate hostnames locally as well: DynDNS Host and Domain Name
Code:
How do I tell the router which is which? Currently I see the same site with both URLs
Do I have to set one vhost to do some 'funky' stuff (black hole in my head when it comes to static routes or BIND? ). And then set the other vhost to host both sites?
I'm running CentOS and an apache webserver. I want to demo a web site 'externally' from two different sub-domains.
I've looked high and low but most examples don't seem to be simply trying to put two different web-sites up to two Dynamic DNS Hosts.
It must be possible, all the pieces are there. I'm just missing the link!
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Oct 16, 2009
I have a network (192.168.x.x) that I want to keep closed and private for the most part. I need however to get access to some files generated on the machines in this private network. So I first tried putting two cards in a machine running centos 5.2 and connecting one to the private newtork and the other to the public network. This worked somewhat but I was not able to see this bridging machine in the private network because I could not run 2 samba instances on this machine ( I need one for the public network). So I setup xen on a machine with the 2 NIC's and assigned one card to the host dom and the other to the guest dom which was connected to the private network.
This worked ok, but the only issue was the shared disk space. I couldn't use nfs because each machine operates in a different subnet and I don't know how to export a nfs drive across domains. So I created a logical volume on a disk and mounted this in both domains.
Here comes the question now. This works some times,. but at other times I copy files from the private machine to the shared volume but i can't see them from the other domain. Also sometimes the guest domain which houses the private network server hangs during boot up saying that the logical volume has been assigned and cannot be mounted.
1) Is what I'm doing using logical volumes across domains legal (best practise, etc)
2) Is there another way for me to achieve what I want (sharing a disk partition across domains).
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Mar 11, 2011
I have VirtualBox 4.0.0 running on open SuSE 11.3 64bit. It works well. My connection to the internet is via a Pantech UML290 usb modem. I can select the usb device and use the Verizon Access Manager to connect to the internet. It says it is connected, but there doesn't seem to be a real connection. I can't hit any web sites with my browser. How can I get this working? I have also tried connecting via Linux then from within VB selecting the usb device, but that just disconnects the modem in the process.
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Aug 23, 2010
i am using ubuntu lucid lynx and the latest verdsion of virtualbox and i have this lexmark printer which lexmark doesn't provide drivers for, so i installed windows xp pro in virtualbox and granted my user account the permission to use the usb interface with virtualbox but one problem it won't let me connect the printer while it lets me connect all the other usb devices (flahs drives and web cams) it worked when i was using pclinuxos but now for some reason its not letting me
i am doing this because my version of windows 7 just crashed anmd will not come up and i have no other choice
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Feb 12, 2010
Useing gnome network manger. I thught that is DNS resolve problem, and wrote in linksys router the same DNS as 3g huaweii modem use. Steel the some result. NO INTERNET. Change for static ip in router and try use the same gatway , but steell can't use connected at the same time to internet with 3g and local router.
Only one devace at the same time, Router have no any acces to internat. SO why 3g internet stoping working after connecting router to LAN ports? Has it some thing to do with subnet or ip range and routing table?
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Sep 3, 2010
I have installed ubuntu netbook addition and all is good, but when I try to connect to internet I get comcast(my service provider) site. Which means I am connecting to outside world just need to know what to enter in Search Domains field.
All my pc's/laptops at home have 2 DNS names entered for ipvr4 listed in the field but no Search Domains field value specified and it works great off of wireless router.
Well here when I go to IPvr4 tab it seems like I am required to enter value in search domains field. The question is what do I enter there COMCAST domain? Like this one: hsd1.il.comcast.net?
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Apr 9, 2010
Anyone can point me to a document, page, or something that will tell me exactly how to implement DNS step by step. I don't mean just the concept, i.e. you'll need two name servers, and to download BIND, etc. NO, I mean command line commands and all. Step 1, step 2, how to register the name servers, how to resolve different domains, etc.
I'd really appreciate it, as I need to implement internal DNS and external DNS for my company soon. Our set up is pretty standard: Firewall, DMZ, Solaris/Linux/Windows servers, and Windows clients, etc.
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Jan 4, 2010
At home we have a small home network, but it is very slow. I believe it is, because some computers are placed in a workgroup, called WORKGROUP and others are placed in a domain called TUE. The domain is because many of the laptops at our house also have to work on our university, and I can't simply put them in a workgroup.
The reason why I believe it is slow because of this, is because file sharing between the computers in the workgroup goes with 5 MB/s. File sharing between a domain computer and a workgroup computer goes as fast as 160 KB/s. This is the upload speed of our internet here. How to make the connection with the domain computers the same speed as the workgroup computers? I can not simply put the domain computers out of their domain and in the workgroup (as explained before)
Our network looks as follows:
Internet
/
||
/
Modem
[code]....
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Feb 24, 2011
I've got an XP pro SP3 Vm in Virtualbox with Vodafone Mobile Connect installed. The USB dongle is detected by virtual box and I've tried passing it through with and without a filter enabled for it. Both times it was listed with the USB keyboard and mouse, all were greyed out. In Windows Ddevice Manager there's a entry for a USB Mobile Internet controller but the Vodafone Mobile Connect software isn't picking up the device. I'm using Ubuntu 10.04 and teh latest Virtualbox downloaded from the website with the PUEL extensions pack so I can have USB.
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Mar 16, 2011
I'm having some problems with my wireless connection. I'm on Ubuntu 10.04, on a HP ProBook 4520s, with a RaLink RT3090 wireless network card. I installed the drivers (hopefully correctly), the wireless seems to work correctly, it scans and finds networks, but when I try to connect to one, it times out after some time, while still attempting to connect. I also have a wired connection that works correctly and without problems. Other computers that try to connect to said wireless network manage to do so without any problems, so this has left me a bit baffled, since, like I said, everything seems to be in order.
I'm a new Ubuntu user, so please tell me what other information I need to provide in order to easily and successfully facilitate troubleshooting this, because it is, as you can imagine, quite aggravating, having a laptop that needs to be connected to the internet through a cable.
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Mar 9, 2011
If I recall correctly, my Squeeze desktop is working whereas my Squeeze laptop isn't.
Here are the errors: Failed to open a session for the virtual machine Ubuntu 10.04.2. The virtual machine 'Ubuntu 10.04.2' has terminated unexpectedly during startup with exit code 1.
Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
Machine
[Code]....
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Feb 26, 2011
I migrated a few VirtualBox vdi's to a new laptop. My Windows XP and 7 virtual hard drives imported nicely when I created and started the guests; however, Fedora bombs as soon as the boot progress bar completes. I get this error message: VirtualBox GUI has stopped working.
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Sep 1, 2011
epositories/Virtualization:/VirtualBox_backports/openSUSE_11.4_Update_standard repo the usb support was working but after the upgrade it is not working any more, note that I removed the old version of the extension pack to install the new one "VirtualBox 4.1.2 Oracle VM VirtualBox Extension Pack"
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May 30, 2010
So I have virtualbox with a fresh install of Windows XP running in it (no service packs) and when I plug in a USB Item it shows up on the device list and it is not greyed out, but nothing happens I cannot access the device through windows XP. It was greyed out before but then I logged in as root and started virtual box and it is not greyed out anymore but nothing happens when I plug in a USB item.
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