Networking :: Access Programs From Machine In The NAT Using Ssh?
May 14, 2010
I am behind NAT using private IPs like 172.x.x.x in my lab. I need to access programs from other machines which are also behind NAT. What is the syntax of ssh command that i can run? Because when i make connection within one LAN for example:ssh -X 172.x.x.10 to 172.x.x.3 it works fine. I can access programs like gedit, firefox etc. But when i try to do the same on the machine that are behind NAT then i get this error;
[root@localhost ~]# gedit
(gedit:3977):WARNING **: cannot open display:
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Feb 13, 2011
I try to access my ubuntu machine via my Windows Machine (Samba Server on Ubuntu Machine). Anytime I try to access the machine it asks me for my password...I enter it but it says it is invalid....is there anyway to reset it? I have already tried to remove and purge everything Samba related and then tried reinstalling, but that still didn't do anything
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Apr 9, 2010
I need to access a Windows Server 2000 machine using a Linux machine via KDE, but that will migrate to Gnome. The Linux user to connect to Windows machine, you should open an application 'XYZ' automatically, and only this, denying any unauthorized access. When you close the application 'XYZ' communications (RDP?) Should be terminated. Do I need a log of accesses and possible attempts to circumvent the system and access other application.
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Mar 1, 2011
I've run into a weird problem. Two of my linux machines (A and B, both running CentOS 5.5) are connected to the same wall ethernet socket via a hub. Bothf them are configured for static IPs. The trouble is that when machine B goes offline or hits a kernel panic, machine 1 goes offline too. What I've noticed is that in this condition the "route" output from machine A does not show any entry for the default gateway either The contents of /etc/sysconfig/network-scripts/ifcfg-eth0 for machine A are:
Code:
# Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller
DEVICE=eth0
[code]...
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May 29, 2010
I have used other distros on and off in the past with no trouble, but for some reason I seem to have had this problem with several versions and flavours of Ubuntu on various systems. I've never solved this problem the previous times I've had it, just given up. But this time I actually need to get this working. I've recently upgraded my computer, so my old system has been relegated to HTPC duties in my lounge. I installed Ubuntu 10.04 and I'm having issues getting internet access with some programs, while others work fine.
Firefox and Evolution haven't been able to access the internet from the start.Empathy IM has no trouble connecting to my MSN and Facebook accounts.I had no trouble downloading and installing Google Chromium browser through Ubuntu Software Center, and have no trouble accessing the internet with Chromium.On the first boot after the install, Ubuntu automatically told me to update my nVidia drivers online, and did so without error.Update Manager detects updates, but fails to download them.
I successfully and flawlessly downloaded installed XBMC Media Center and some related skins and things through Synaptic, but XBMC cannot access the internet. However it can access shared files over my LAN, including Windows 7 shares.Ubuntu itself cannot access any files on my Windows 7 computer. It can access the work group and see my Win7 shares, but refuses to mount them. Strangely, XBMC can access these shares and stream media from them fine.
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Mar 16, 2009
I see from the netspeed applet that my computer is downloading stuff almost constantly. Not a whole lot, 8b - 700b per second while apparently doing nothing. Some of this is just responding to broadcasts from the router, but surely not all. I would like to be able to determine which programs are accessing the internet over that wireless card, with a view to cutting down on my bandwidth usage. Is there a program that can tell me which ones are doing what at a given time?
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Feb 23, 2009
i have been using samba to gain access into windows computer through my pc which has fedora 8 ..can i access the unix machine from another unix machine? is yes then what is the procedures ?
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Jul 4, 2010
Unable to get update or download any native programs. But able to access file from Samba
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Nov 15, 2010
I have two laptops with me here at school, one bigger one [home computer], and one smaller one [netbook]. I take the smaller one with me to class and when I'm out and about, however, I keep all of my things on the bigger one. I would really like to be able to set up some sort of SSH port forwarding for the bigger machine so that, when I'm out and I realize I left file X on my home machine, or I want to listen to a certain song, or whatever, I can just scp it to the netbook. The issue is, at my dorm, I'm stuck behind a firewall and can't just set up a SSH daemon and port forward through the router, I need a more clever solution. I do have a home server (not with me at school), which I commonly use for transferring files. Basically, I'm wondering if there is some way I can SSH into my server box, with reverse port forwarding so that, when I am out and about, I can just log into my server and copy files from my home computer for use on my netbook. I've tried a couple of solutions which come up from google "reverse ssh" but haven't been able to get them to work. A step by step guide to doing this would be great. Again, the setup is:
Home server [ssh-able]
Home Computer [behind firewall, can't ssh into at the moment]
Netbook []
Want to be able to SSH from Netbook to Home computer, probably using Home server.
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Jan 11, 2011
Just installed Ubuntu the newest release on my laptop . Im dual booting on my laptop. Vista or Ubuntu. I gotta say I love Ubuntu more than vista. I would much rather use ubuntu. My question is I cannot for the life of me connect to my main PC running Windows 7. Reason I want to do this is my PC running windows 7 has all my music which is rather large over 100gigs worth. Looks like it recognizes my PC but I cannot access anything.
Now In windows 7 I have disabled password and made it pretty easy to access files on there. When I boot into vista on my laptop no problem at all getting onto the network to access my main Windows 7 Pc. Any Ideas why Ubuntu can't get into my Windows 7 pc Through my network. Would love to do this that way I don't ever have to boot into vista. Ubuntu is great otherwise.
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May 31, 2011
I have a weird issue where all of the machines in my office can all connect to our web server, either via DNS or using the server IP directly. However, on my machine, which is using the same network IP as the rest of the office and I know it's not being blacklisted, I can't access the server at all via SSH or web or mail. I'm the only machine running Linux, I've flushed the network cache using nscd, but this made no difference. Can anyone think of what might be going on here?
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Oct 23, 2009
At school can connect to my computer via SMB/Samba and VNC from the Windows Machines, but not by hostname (I still cannot VNC in at home on my desktop computer and have yet to try Samba there because I wanna setup Samba there from the comfort of my laptop and therefore need VNC first). How come I cannot access this machine by it's hostname?
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Nov 2, 2009
he moved in a new place and there is a huge share on the network machine which runs windows... however he has fedora 10 installed on a desktop pc with a big screen and asked me to configure it so it can access the share... i have almost no experience with fedora and i've been trying to do this for two days now... i installed the samba package, but now what? how to do this because the exact commands are unknown to me... i have the root password and everything else on the network... so i just need to know what ot write in order to be able to mount all the TBs of information on the server...
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Jan 27, 2011
I have two desktop machines, each with U 10.10. I want to backup data on my main machine to a partition on the other machine. I am going to use luckybackup for that. Problem is, from the main machine, I cannot access the backup partition on the other machine (but I can see it). I get prompts for passwords and when I enter them nothing happens, it seems they're not valid. Bottom line, I can't access that partition.
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Mar 10, 2011
Been using Ubuntu now almost 1 year and love it but I'm still mostly lost so I need someone to explain in great detail how to be able to access the My Documents folder on my LAN XP machine. I've been up and working fine for 6 or 8 months but all of the sudden (maybe it was an update package?) I get the following error message, after a long delay, when trying to access the shared folder:
Could not open location 'smb://office/my%20documents/'Failed to mount Windows share.I have set an icon on the top panel mapped to the XP machine and launched by launcher.
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Jul 1, 2010
How do I do this at my modem page?
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Jul 1, 2010
Anybody know how to do this, IN MY MODEM PAGE?This is the best I can copy my modem config page code...
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Oct 7, 2010
I am able to access internet, can ping other machines and can ssh into other machines. But cannot be pinged (it just hangs), and when trying to ssh into machine, it also hangs (no response)I checked the sshd daemon, it is not runningchkconfig --add sshdreboot, the sshd does not seem to come up.
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Apr 26, 2010
For some time now, I have been backing up a windows box (data files only) to a ubuntu machine using the following:
mount -t cifs -o user=xxx,password=xxx //windowsshare/ /mnt/
For the first time I needed to restore some files and found I did not have the correct rights to write to the windows machine.
I had already wasted a whole day trying to map the ubuntu machine from windows and failed so this is not an option.
I have tried adding write rights to several accounts on the windows machine, also tried adding write rights to "everyone", checked both the share permissions, as well as the folder permissions.
I read about chmod, and tried to use the command gksudo to do something but this fails with DISPLAY error. Tried several things to fix this which didn't work and I was just going off on a tangent.
In the end I used a CD ROM to copy the files from one machine to another.
So for next time I need to restore a file, how can I give myself rights to do so?
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Oct 8, 2010
I am running Ubuntu 9.10 on my desktop right now. I have an external western digital terabyte drive plugged into it. I am able to see it and view it fine. Let's work with my music folder for example. I want to be able to access this music from my Windows 7 laptop so that I may add it to my itunes. However, when I enter the \servershare from the windows 7 laptop it says that the "server" is found but the "share" seems to be invalid. I've checked this 20 times and setting the share name to "music". I've rebooted 2 times on each computer yet to no avail. If I make a share on the Ubuntu desktop I can access it from the laptop. So it seems like it just gets lost when looking inside the external. This was just working last week, then I had to blow away they win 7 lappy and now it just won't work!
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May 13, 2010
I could no handle/circumvent on the past week, despite of the several "googling" and documents reading. I will try to mention all needed bits... I'm managing a network with the following structure:
eth0: internal net
eth1: DMZ
eth2: 10 mbit/sec sync line with eight public /29 IP's + a /30 interconnection network. All public IP's must use the interconnection's network gateway.
eth3: ADSL with ppoe with fixed IP (ppp0).
Now, a few extra info:
- All internal traffic is routed through ppp0 except when it's destined for DMZ and public IP's range.
- DMZ traffic is routed either through ppp0 or eth2. This is done by source IP.
- eth2 has on IP from the interconnection network, and six public IP's are also defined on eth2. Command: "ip addr add ...."
[code].....
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Jul 5, 2009
I have a local network that has three LANs and each LAN has several machines. I created a folder named myweb that contains html files under /var/www/html/. Let's say the folder is on A machine. From B machine, which is in different LANs, I want to access myweb folder using a web browser. I can ping both machines nut I can't access the folder. I tried [URL] where sxa.org is the hostname and the http server (Apache) name.
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Jul 15, 2011
I am unable to access samba share from my windows machine. I am getting the following error
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Sep 21, 2010
I have a machine (lets called it machine 1) with two networks card, eth0 and eth1. Both have static IPs. Once in a while the machine refuses to give access to the Internet via Firefox (eth0 is the route to router). Other machines on the network have no problems accessing the Internet. Eventually the machine would just magically start working again, but this time it just seems to have stayed broken. I've done some simple diagnostics and found:
a) I have another machine running Apache with a Wiki on our network - [URL]. Machine 1 is unable to connect to this Wiki. I get 'the connection has timed out'. I can ping 192.168.1.73 and it responds in the usual fashion.
b) If I try to ping www.google.com it times out with: ping: unknown host www.google.com. I can ping google using its IP address.
c) On machine 1 I have tried traceroute on both www.google.com and its IP and I just get:
1 * * *
2 * * *
And so on until hop 30. Doing this on any other machine on the network works. So while it seems I can ping internally in our network and outside, but when it attempts anything traceroute or URL related it does not work.
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Mar 8, 2011
I have ubunto desktop 10.04 LTS I installed samba and able to access the share on windows machines. However i want to access the share on 300 windows machine(for example) systems at a time Is it possible.
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Oct 31, 2009
I have a WindowsXP virtual machine which I need to isolate from the host machine completely (have the host act as a bridge but not be visible on the IP layer at all.) It still needs to have Internet access. Obviously it has to be able to contact the router but I would like to be able to block port 80 (or even just block all SYN packets addressed to the router.) I also want to allow port forwarding from the router to the virtual machine. I can use basic iptables but this is way beyond me.
The host OS is probably going to be Debian Lenny but this is not built yet so if someone can recommend a different distro which is as lightweight as possible but will support VMWare, iptables and tcpdump then that would be great. I was thinking of Slackware but I have not used it in ages and from what I can remember their is no real package management.
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Feb 22, 2011
Right now I just installed open ssh because i was told its a great thing to have for remote controlling my machine if I am at work on my windows system. My question is, how on earth do I acess my machine from my windows machine now that its installed? i did sudo apt-get ssh and thats about all so far...
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Aug 3, 2010
I'm the Administrating the computers in my office. I want to monitor the user's activity. How can i remote login without distrubing the user's activity on his computer? Any software need to be installed? (I don't want to use Terminal server client).
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Jan 17, 2010
Ive successfully set up Ubuntu on a desktop computer I got for free (because it�s RAM was half destroyed by a virus and the owner got a new one). I don�t have this computer connected to the internet but I can get the internet on my laptop�s built in wifi (from some random neighbour who has an unsecure WLAN). So, to install programs on Ubuntu I have to download the .deb or .ter.gz files from the laptop (winXP), copy them to a USB drive, transfer them to the Linux machine and install. Problem is, none have worked so far:
[Code]....
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Aug 2, 2010
what are the programs or process that gets execututed when a linux start. ie starting from the grub (linux bootloader)
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