Ubuntu Networking :: Simple SSH From Within And Outside
Mar 10, 2011
I've read a lot about what SSH does, and how to do it on some networks, but none of them quite cover how to do it on just a network with a bunch of computers on it. I have no server or anything, just a router with some computer connected through ethernet or wireless. All of the Ubuntu computer have me as a user, and I want to be able to access any specific one. How do I do this? Also, if I'm not at home, how can I access any of my accounts from whichever computer I wish to access?
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Oct 7, 2010
i'm a college student studying pc programing, and i was given today a special work and i have to program using miranda... which i've never used it >.< can anyone give me a hand to where to download, how to compile, and a simple tutorial for making a simple program or something?
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Mar 1, 2010
All i really want to do is be able to ssh into my other linux system. I am not interested in internet sharing, or even file sharing.[linux laptop with unused ethernet port]-windows-mobile-ppc connected by usb for internet-tehtering [linux running on my wii accross the room]-nintendo lan adapter.I want to be able to ssh login to my wii, from my laptop. That is all i want. Do i need a router in between the two for this, or can i just connect them with ethernet cable?No samba, no nfs, no fancy stuff. Just want to be able issue commands from laptop to my wii.
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Jan 6, 2011
As a user who is comfortable setting up a peer to peer network in Windows, how do I set up a simple peer to peer network with shares, on a standard network infrastructure (ethernet and basic dlink router), using Linux? I have two computers with Ubuntu 10.04, and would like to share files between them.Do I need to set static IP's? Why is only Windows network showing in Places/Networks?
Question two: I have 3 Windows computers (2 = XP, 1 = Win7) on my network, all with shares. When I try to access the windows shares from an Ubuntu machine, I can connect to some shares on some computers without being asked for credentials, however on other shares I am asked for credentials, but the credentials aren't accepted.I am assuming that domain = workgroup, so I enter in the workgroup name, but the dialogue refuses to let me in.
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Jan 30, 2011
I'm trying to set up very simple UDP port forwarding, but can't seem to have good results. I read trough netcat and iptables manuals, but can't seem to figure things out. my setup is the following:
I have machine1, listening on UDP port 49000. I have machine_fw, which accepts connections on 59000, and forwards all this to machine1:49000 (and returning traffic too) I have machine2, which will connect to machine_fw:59000, and this way communicate at the end with machine1:49000, as machine_fw is taking care of forwarding is there an easy way to achieve this?
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May 11, 2011
My plan is to set up a simple webpage using no-ip. I already made an account and downloaded and configures the client. Now I want to make the actual website (hosted on my local machine). How would I do that? I assume I would need a hosting software.
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Mar 26, 2010
Is there a simple way to connect to wifi with terminal?
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May 11, 2010
I am using an Ubuntu 64 bit desktop. I need to create a network (the way you create a workgroup in windoz). I have two other machines running Ubuntu also and all connected to a 3-Com switch through ethernet. I would prefer not to use DHCP, and just have a simple network where I can share resources like drives and printers.
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Sep 30, 2010
I have a Lexmark interpret S405 all in one. I got it to work as a wireless printer with the downloads provided by Lexmark. I installed simple-scan (sane) to enable scanning. Simple scan works, since it sees another all in one printer in our house and is able to scan. In addition, simple-scan does work on the Lexmark when I hook it up with a USB cable. HOWEVER, for some reason simple-scan does not see my Lexmark, despite the fact that it is seen as a wireless printer. So, the following discrepancy is present
a) My Lexmark is recognized by my computer as a wireless printer
b) Simple-scan does work, since it recognizes and scans another all in one and it does work with my Lexmark when connected with a USB cable
c) Nevertheless Simple-scan does not recognize my Lexmark all in one wirelessly.
My question to this distinguished form is: How can I make simple-scan recognize my Lexmark wireleslsy?
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Nov 2, 2010
i have been looking for a simple network monitor daemon for ubuntu, for some time but have not found anything that suits my requirements and from what i've been reading online there seems to be quite alot of other people out there that are looking for the same thing. [URL]...for-linux.html page seems to have the most comprehensive list of similar products but if you read through all of them they don't seem to be what i'd imagine most home users need. here's a list of what i had in mind, if any one uses something that has these features or knows of something that might meet these requirements please let us know! 1)a small lightweight daemon that can be accessed via the panel on gnome 2)has thee ability to monitor eth or ppp (particularly internet traffic)3)can represent this data in a human readable format ie using megabytes and gigabytes 4)can store a history of how much data is being sent and received over long periods of time (like several months)
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Feb 6, 2011
I have three PC's. PC-1 is a newish Dell Vostro 320 running Win 7 as the prime OS with Ubuntu Linux 10.10 dual boot under the control of EasyBCD. PC-2 is a Dell Inspiron 6400 running Ubuntu Linux (10.10). PC-3 is an oldish Dell Inspiron 6000 laptop dual booting Win 7 and Ubuntu 10.10. All three PC's share a DSL connection to our ISP and network using the wireless router capability of the DSL box (a Billion 7401 VGP-M). All three PC's can access the internet using the DSL box both wired and wirelessly under Windows or under Linux. PC-1 is the primary PC and runs Win 7.
PC-2 (Ubuntu 10.10) is running fantastically well and can access PC-1 running Win7 as a member of WORKGROUP for print sharing and for file sharing. The primary PC-1 can also see the files on PC-2 as a member of a Windows WORKGROUP. Simple home networking is working as it should with this setup (PC-1 under Win 7 and PC-2 under Ubuntu 10.10). This has been like this since the installation of Ubuntu on PC-2, which included setting up network printing from PC-1 (Win 7) under Samba.
The problem is thus: If I boot PC-1 or PC-3 up under Linux, I lose all networking capability between the three PC's including print and file sharing, but they can all access the internet through wireless or wired connection. I have configured Samba and done all the home networking troubleshooting especially:[URL]..All to no avail. As I said, my aim to ditch Windows and move all three PC's to Linux but I can't do this unless I can get Linux home networking working properly. By properly, I mean all PC's running Linux or two under Linux and one under Windows 7 and be able to share files and a printer attached to PC-1. I am a Linux virgin and am hoping that a knowledgeable person can tell me what's going wrong and point me to setting up a simple home network under Linux. It shouldn't be this hard.
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Sep 20, 2010
I've been trying to create a simple htb qdisc on my computer for learning purposes, but it does not seem to be working as I want it to. Ive made this script that creates a simple qdisc scheme and assigns filters to it:
tc qdisc add dev $ETH root handle 1:0 htb default 1
tc class add dev $ETH parent 1:0 classid 1:1 htb rate 20kbps ceil 0kbps
tc class add dev $ETH parent 1:0 classid 1:2 htb rate 30kbps ceil 100kbps
tc class add dev $ETH parent 1:0 classid 1:3 htb rate 10kbps ceil 100kbps
[code]....
I want it to simply shape packets on my single machine so that when I go to view web pages it will limit the download rate, same thing for p21 ftp and 443 https. I just want to try out how it works and use these trial to get a hang of it, but I noticed so far that its not limiting port 80 at all.
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Nov 21, 2010
I made a simple proxy using netcat and it works great, the idea is to make the server and client communicate through two named pipes, file1, file2.
$ mknod file1 p
$ mknod file2 p
$ nc -l -p 12345 0<file1 1>file2 &
$ nc 192.168.2.118 80 1>file1 0<file2 &
The problem Im facing is that I cant seem to intercept the data going between the client and the server. I want to be able to have the data coming to the server in a variable, manipulate it and send it to the client, and the other way, have the data coming to the client in a variable, manipulate it and send it to the server.
Im running on an embedded device where tee, awk and many other commands are absent. how can I redirect the data to a variable, manipulate it and pass it to the other side, that is the question.
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Sep 15, 2010
I am trying to deploy a very simple file server in my company's network.The goal is just to have a file server with DAT backup, nothing more.I managed to configure Samba to show a share visible in the Windows network, with free read and write to everyone. For this I configured "Autentication Mode = user", and read/write access to all users in the specified share.
Of course, I would like to have the possibility to establish permissions based in AD-users. For that, I tried to add my CentOS machine to AD.I followed the guide in:
[URL]
I can get the kerberos "kinit" command to autenticate in Windows AD: I can access the Windows machines in the network as administrator and "klist" shows the valid ticket.But, when trying the "join", I always get the "No logon servers" error.I googled around for this, and it seems that this is a common error and there is no "magic approach" for it...
So, my questions are:
- Can this be achieved only by the Samba configuration tool (Gui)? I think not, as we need to change kerberos settins
- What would be the correct settings for krb5.conf?
- Are there any other services/files needed to adjust?
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Feb 8, 2011
How to find IP address of computers in LAN served by simple DHCPd (in ADSL modem - without IP reservations/MAC address).
So is in Ubuntu something like on-fly name resolution in Windows ? Without running DNS server with some kind of DynDNS ?
e.g.
My comp has hostname "GoGo" but I get random IP address from DHCP.
How can other PC on same LAN resolve my changing IP address ?
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Jan 8, 2011
I'm wanting to set up a network that has a simple screened subnet architecture. The boarder router will have a switch plugged into it. My servers will be plugged into this switch. Also plugged into this switch will be a dedicated firewall. This firewall will protect the internal network. The boarder router is not very flexible. You can have hosts that use dhcp but that get the same internal I.P address each time their interface is configured.Or you can configure static I.Ps on hosts that are outside the dhcp range of the router, but that have the same subnet address.
The most simple way to set up such a network would be for every interface to have a static internal address that is obtained via dhcp from the boarder router. Like i said the boarder router is doesn't give you much freedom. Meaning that it lets you have a static internal address but not a different network address for different interfaces. That is where the confusion is, for me. If all the interfaces that get theirI.P addresses from the boarder router are on the same network, then what about the systems on the internal network. They might as well get their I.Ps from the boarder router as well, to avoid NAT being done twice before their packets get sent out to the Internet?.I wanted a three interface firewall to separate the DMZ from the internal network, instead of using a screened subnet architecture, but the boarder router only allowed one interface to be in the DMZ, i think and it didn't seem to have a well designed way of controlling the DMZ ie setting a new default gateway etc.
Should i let NAT be done twice for packets from the internal network i.e have the dedicated firewall do dhcp and NAT for the internal network, but this firewall's external interface have a static internal I.P from the boarder router, and the internal I.P of the dedicated firewall have a static internal I.P from the router as well?. It looks like all the interfaces have to have the same network and subnet address, except the machines on the internal network(which can get their I.P from the dedicated firewall)
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Mar 3, 2010
I have been using Pound and it does exactly what I need for a simple easy dedicated load balancer machine.
Are there any other popular load balancing programs like this people can recommend? HAProxy I looked at also, not sure how good that is...
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Nov 26, 2010
I'm looking for a tutorial on how to create a simple pppd tunnel between two machines. I've found alot of tutorials about pppd over ssh (using the pty option) but for the purpose I just want a simple pppd tunnel.
Specs
host 1: lan ip 10.101.10.20 running slackware 13.0
host 2: lan ip 10.101.10.21 running slackware 13.1
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Feb 19, 2010
I mean something like Teamviewer so i can click-click and be there in no time, without knowing my IP (it's dynamic so that's a toughy, when i was using VNC i had to write a crontab script that uploaded my IP to a place i could always access every hour). Looked trough tons of apps, Googled for hours, found nothing.
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Dec 22, 2010
I recently added a second interface to my Ubuntu 9.10 server, I now have a dsl AND Cable connection for it, Im not trying to load balance or anything sophisitcated, heres my problem.
The machines networked, I put static entries in my dhcp servers and both interfaces are up and live with dhcp, and Ive tried with dhcp and static, same problem occurs.
But my problem is that services will only respond on one interface at a time, not both.
Anyone know what the heck is going on here?
Kernel IP routing table
Should I make them static and remove both gateways?
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Mar 14, 2009
I used VPN before in Windows only.
How can I connect to VPN network by PPTP protocol in a simple way ?
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Jun 2, 2010
Is there a simple web-based solution for a group looking to securely share files online? The software needs to run on our own servers due to regulatory laws. I want users to be able to go to a web site, request an account (which I should be able to accept or reject), and upload/download/manage files in a web-based (preferably ajax-y) file manager. File access controls (via users/groups) is desirable.Yes, I know that SSH/SFTP is the 'proper' solution, but many of the users will be office workers and installing an SFTP client and configuring it is too advanced for them. Same goes for Samba+VPN setups...
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Apr 8, 2011
Is there a utility to forward ports on a simple home networking wireless router from commandline using upnp?
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Apr 5, 2010
How GEBI installs stuff. is there an app that looks at the kind of file and extracts it AND installs it , all the different kinds of files like tar and others..
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Dec 6, 2010
Does anyone know of a simple gui for Apache that I can use to stop and start apache when I need it. I just installed apache on my laptop so I can work and test locally.
I tried webmin but it's to bloated.
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Jan 17, 2010
Is there a simple way to do this or should I do a clean install?
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Feb 20, 2010
Anyone know of a simple file editor for .rtf files similar to Windows' Wordpad? OpenOffice Writer is much too big and clumsy for my purposes.
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May 4, 2010
i am very sorry if this has been asked before... i'm sure it has.. but i have searched all over the net looking for an answer and i still cant find it...
I have a really simple cron job script like this:
When i run this manually it works fine but when i run it from my ROOT user in Plesk as a cron task is always creates a file that is just 45 bytes. Why doesn't it work... I am running it as a root user.. so surely i must have permission to access the file?
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May 23, 2010
I have a second HD in my computer for doing a backup onto. All I want is to select a couple of my documents folders and have them copied to it daily. I would like it to add new files and update newly modified ones. I don't want it encrypted or archived, just a basic copy.
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May 25, 2010
i am trying to use Calc for simple calculations. How can i do so that a whole column uses a number from previous row? for example i want D2=B2+C2+D1 and the next row to be D3=B3+C3+D2?
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