Ubuntu Servers :: Differentiate Between Connections From Windows And Computers

May 21, 2010

I have a question about connections with an ubuntu server. Is there a way to know if the terminal computer (which is connected to my linux server) is using WinSCP to connect (on a Windows platform) or a linux system? It seems they are using the same port (22) and I think the exact same protocol (SSH / SFTP), is there a way to differentiate between the two though? And going farther there, is it possible to limit the connections only to linux terminal computers and reject requests coming from Windows computers?

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Ubuntu Servers :: Differentiate Between A 32 Bit And 64 Bit Distro From The Command Line?

Sep 1, 2011

Is there a way to differentiate between a 32 bit and 64 bit distro from the command line?

I also need to know this for a CentOS 5 box.

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Ubuntu Servers :: Setup A Home Server For Backing Up And Storing The Files On Multiple (Windows) Computers?

Feb 3, 2010

I'm looking to setup a home server for the purpose of backing up and storing the files on our multiple (Windows) computers. What kind of server should I set up? Samba? Lamp?

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Ubuntu Networking :: Disrupts Internet Connections To Other Computers

Sep 18, 2010

While using Ubuntu two other computers lose their connection. One (main) is connected to the modem, other from the switch to the wireless router, and the one with ubuntu wired via switch. Currently connected with Windows 7, other two are connected. Once booted into Ubuntu rest of the computers disconnect?

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Ubuntu Networking :: 10.10 Lab Computers Dropping WiFi Connections

Jan 5, 2011

Our school has a small 3-computer lab in the preschool department where the kids come in and simply use Firefox to access some educational websites. Due to logistics in the building they're in we had to go with a wireless solution in the following setup:

- Apple Airport Extreme WAP
- 3 HP DX2200 desktops running Ubuntu 10.10
- 3 Trendnet TEW-664UB USB wifi chips

All was running great until we got the computers installed on site and now they are constantly dropping the wifi connection if they are even able to connect at all (which is highly hit or miss).

10.10 picked up the USB wifi card as soon as we plugged them in and showed the available networks, but actually obtaining and keeping connections is a nightmare at the point. The computers are in very close proximity to each other (only about 2-3 feet between computers) and the WAP is in the next room (other computers and mobile devices are able to connect to the WAP with full signal from the same room/location). Thats about all the detail I have off the top of my head, could this be an interference issue with the wifi cards or does this sound like an Ubunutu issue? Again we have had multiple other devices in that room all able to connect seamlessly.

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Ubuntu Networking :: Remote Desktop Connections - Access Files On The Other Computers In My House

May 22, 2010

Alright so i just wanted to try and get remote desktop connections running so i can access files on the other computers in my house. For my first try i went after my laptop. I'm using rdesktop.

First couple times i tried i typed in

Code:

After about 15 seconds it would pop back with

Code:

I realized that my laptop's firewall was blocking the packets, so i created a custom rule that allows all TCP packets on port 3389. So i fired up rdesktop again. Now it pops back with:

Code:

But instantaneously, not after 15 seconds (not sure if thats significant or not.) I checked my firewall's log and it allowed the tcp packets.

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Software :: NAS Software - Allow Connections From Windows Servers?

Jan 11, 2010

Anyone know of Linux NAS software, that will allow connections from Windows Servers as well as linux?

I see freeNAS for freebsd, but are there any linux based ones?

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Ubuntu :: 2 Pptp Vpn Connections - When I Dial One Of My Vpn Connections, My Other Vpn Connections Be Disabled?

Feb 7, 2011

have a problem with my network-manager in ubuntu 10.10.when I dial one of my vpn connections, my other vpn connections be disabled and I can't use them!I tried to restart network-manager and gnome-panel, but it does't seem to solve this problem.

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Ubuntu Servers :: Using 2 Computers To Host 1 Website?

Dec 23, 2010

how do i use 2 computers to host 1 website? i have one of them running fine, and i just got the other one to use as well. one of them is completely configured without any problems(I have been hosing a website for about 2 strait years with it).also, I have a dynamic IP because the idiot ISP's wont give me a static. I am using Dyn DNS.

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Ubuntu Networking :: Differentiate The Encryption Type Used For Wireless?

Feb 9, 2010

Using sudo iwlist scan, i will get a list of surrounding AP(s) around my laptop, is there a way to interpret the sudo iwlist scan results so that we can know what encryption type is the wireless network using?

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Ubuntu Servers :: Cannot Get IP Changed For Home Shared Computers

Sep 27, 2010

Im wondering about proxy servers, see it is like this: I got banned from a samp server and i can't get my ip changed (it's not the local address it's the one all the computers in my house shares) I searched a little bit and discovered that a proxy server would be the best option. If I have it in some one else house I will get another ip right? Is it possible to install some software on my laptop and just use that? and how do I do that? Btw I found this: [URL]. But I didn't understand so much of it.

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Ubuntu Servers :: 10.04 Won't Allow Client Computers To Connect To The Internet

Jan 23, 2011

This is my first attempt at a server, and I running Ubuntu 10.04 server. I had to reconfigure my network, so now I am attempting to use it as a server. I have a Linksys WRT54G2 connecting various machines-- Windows XP, Ubuntu builds, and LinuxMint 10 Julia.

The long and the short of it is that the server connects to the Internet-- I can get updates and install programs via terminal. The server also connects to the router, as tested by pings. The client computers all ping back and forth nicely, and I can access the file share via FTP from the local side and externally (this is part of a larger network).

How can I get it so that my client computers can access the Internet through the router and server?

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General :: How To Differentiate Server And Desktop

Jun 22, 2010

I am moderate in linux. Is there any command to know the difference between linux server and desktop Or any system files will give such information.

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Ubuntu :: Sharing A Printer To Other Windows Computers?

May 29, 2010

I have installed Ubuntu 10.4 LTS and I want to share a printer on that computer with my windows network (mix of XP and Vista). I have network connectivity and and can see other windows computers and they can see me, I am just stumped on how to share a printer on my linux machine with all of the Windows computers on my network.

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Ubuntu :: VIRUS In MBR, As A Result Of Windows Computers Are Now 10.10?

Apr 27, 2011

How to wipe this hard drive clean like new, formated #4 linux when finished.W/D 500 GB

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Ubuntu Servers :: 9.10 - Web Connections And SSH Times Out

Jan 28, 2010

I am noticing really odd behaviour after upgrading from 8.10 to 9.10 (via 9.04). My server frequently becomes unreachable. I am using it as an application server, running Apache, JBoss and MySql. Once the server goes idle, all web connections time out. SSH also times out. Usually the server wakes up on second SSH attempt and then everything: Web, SSH etc seems to run fine.

This is a server machine with no GUI. Can anyone point me to power management or other such settings I can tune from commandline? I have disabled power management by adding kernel parameter acpi=off. I still have the problem. The first network connection after the machine has gone idle takes a long time. All later connections run pretty smoothly.

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Ubuntu Servers :: Proxy For SSL Connections?

Mar 11, 2010

I have a small business that I run Squid and Dansguardian on Ubuntu for network proxy filtering, among other things. This works great, but does not block SSL connections on Port 443, such as https proxies. I understand that this is because this type of configuration is a "transparent proxy".

Is there a way to set one up "non-transparent" and, would that filter https?

I cannot blanket block 443, because some sites need it.

I have read that one can re-compile Squid to work with SSL, but not being a super guru, not sure of the implications of doing that.

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Ubuntu Servers :: LDAP - Centralized Log On Scheme Setup With 10 Computers

Aug 16, 2010

I'm trying to set up a centralized log-on scheme in a research lab with about 10 computers. It's looking like we're going with LDAP - this decision may be out of my control (but if there's an alternative that would be REALLY better, do let me know). My question is we don't really have a domain name, so when all the tutorials say cn=example,cn=com, I can't mimic this exactly. I've been trying to get away with just one, like cn=researchlab. Will LDAP work with just one, or do I need to invent a second also? On the flipside, will it work with more? Our server can be reached by
lab.department.school.edu, could I do cn=lab,cn=department,cn=school,cn=edu?

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Ubuntu Servers :: Setup An Office Network Consisting Of Three Computers?

Sep 16, 2010

I am wanting to setup an office network consisting of three computers and one server. We already have the equipment ready with Vista Business pre-installed on the computers. I want to be able to create a network which allows users to use any machine as this will reduce downtime should a machine break. Also I would like user's files to be held centrally on the server which makes backups easier.

The most important element here is data backup. As like most businesses we are moving away from paper and using the computers to store important records such as customer information. If this data were to be lost, the business would come to a complete halt.

I have been looking at the idea of installing a Microsoft Small Business Server as it would be nice to have centralised control of the machines. However the cost would be over 800 which can not be justified for three machines and five users. Therefore I am turning to Linux for a alternative solution. I have previously used CentOS and Ubuntu for home use but never really gained much knowledge or experience of either.

It is my understanding that Samba can act as a Primary Domain Controller, which if I'm not mistaken is where it handles the network logins and profiles. Is this correct? I have come across many samba tutorials online but whats confusing is they are all different. Some of the tutorials involve using Kerberos and OpenLDAP. Do I need to learn about either of these? What do they do and what benefit will they bring?

Finally, I see Samba 4 is in development and is likely to bring a lot of new features which aren't available in Samba 3. Is this worth waiting for because I don't want to be upgrading everything again 6 months down the road?

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Ubuntu Servers :: Will Opening Port 80 Affect All Computers On A Network

Oct 11, 2010

I'm thinking about making a web server but, I have an issue:will opening Port 80 affect all computers on a network?

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Ubuntu Servers :: Apache Server Not Accesible From External Computers

Dec 8, 2010

A week ago I purchased an VPS. The first few days I was having trouble to set up an outgoing connection on the VPS. Eventually it turned out to be some misconfiguration of the server where the VPS is hosted on.Since then I have installed the apache server, but I'm still not able to access the apache server from an external computer. I already have contacted the provider, but they haven't replied yet. To speed things up I was hoping someone could check my configuration to be sure nothing is wrong with it.To be sure I posted all configuration and information that I think would be important. Please contact me if you need more information.

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Ubuntu Servers :: Access Restricted To Select Computers Not Users

Apr 21, 2011

I want to configure a remote internet facing server as git server. I would like to restrict access to the server to a few systems (access is restricted to select computers, not users). I first thought of using ssh key, but the key can be copied to another system hence that alone is not sufficient. I am having a dynamic IP, so simple IP based firewall blocking is also not possible. I was thinking about the possibility of using both SSH Key and IP based access. Is it possible to update the firewall rule whenever my ip gets changed?

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Ubuntu Networking :: LAN Surfer To Access Windows Computers?

Apr 22, 2010

but Im thinkng of completely switiching to Ubuntu,But all of my friends are on Windows...We have a LAN of abt 100-150 .. Is there is any GUI software thru which I can see all the files which are being shared on the network by Windows PCs,I know abt Samba ...but that is only computer specific & also that is reverse way...& doing from command will be tiresome task for all PCs.

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Ubuntu Servers :: Connect Multiple Computers Running & Run Software From One Computer From The Other?

Jan 15, 2011

This may sound stupid but I've got to ask. Can I connect multiple computers running Ubuntu & run software from one computer from the other? I know how to connect using SSH & to copy files back & forth but I don't know how or if I can share programs.

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Ubuntu Servers :: Allowing Connections From The Outside World Through SSH?

Jan 9, 2010

I want to set up my laptop to allow connections to certain users with passwords from anywhere over the internet via SSH but I'm unsure about how I would go about doing this. I only thought it would be the case of setting up the open-ssh server on the laptop then, using my external IP and PuTTY on another PC outside of the network, connect to the external IP through port 22 so I tried this and wait 3 or 4 minutes or so and it says the connection times out.

I have also configured my router to use port forwarding but this doesn't seem to help much either and I have LAMP setup to allow connections to external IP : 80. The only thing I am able to do is access the laptop through the local network by using its internal IP's like 127.198.0.1:22 or something. I was wondering if anybody knows if and could tell me how I would do this as I really want to be able to access my home computer/laptop from my work sometimes, especially if I have work at home which is not with me at work or something.

I know this is possible but I'm quite new to this type of thing and don't know what is going wrong. Have I missed something or do I need to change any .conf files or anything?

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Ubuntu Servers :: Samba On Karmic With Two NIC - Connections?

Feb 24, 2010

My setup:
Ubuntu Karmic Server Edition 64 bit
Dell PowerEdge T610
4 internal NIC RJ45
1 add-on NIC Fibre 1 Gb
Samba 3.4.0
two shares intended for WIN clients

Connections: eth0 (the first internal NIC) is part of a private network of 4 servers connected to a Gb switch. this connections serves as a fast link among these servers to regularly transfer (backup) large quantities of data. Only I can utilise it from within the server room (among those servers, obviously).

eth0: 192.168.0.AA1 eth4 is the Intel add-on NIC with 1 GB fibre connections to the public network of our institution. This is the link/IP my WIN clints have to use to access their shares. eth4: 134.XXX.YYY.ZZ1

My Problem: Despite having including both interfaces in my smb.conf only the internal connection via eth0 lives up to my expectation and delivers up to 50 MB/s. All clients trying to connect via eth4 will be able to see and access the shares, but file transfers commence with speeds severely below 0,5 MB/s with lots of aborts and warnings from the WIN file explorer.

So I experimented with the setting "interfaces" in the global section of smb.conf --- to no avail. I even set samba only to eth4: same problem. Only way to get flawless & fast transfers is the way through eth0. The samba log files of the clients I tried do show some errors, but I fear I am unable to interpret them properly.

/etc/network/interfaces

Code:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface Intel Gb link via fibre
auto eth4

[Code]...

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Ubuntu Servers :: Multiple Connections To SMB Server

May 25, 2010

I'm curious how I can use a Windows client with two separate accounts to connect, at the same time, to a SMB server hosting two shares. (Provided permissions and accounts are all in order)

Scenario:User1 is always logged onto a Windows client mapped to a Public share on a Linux SMB server.I need a way to keep User1 connected to the Public share and then when needed, allow User1 to provide User2's credentials to connect to a Restricted share.The only way I've been able to do this is to disconnect from the Public Share then reconnect to the Restricted share using User2's credentials. (This is the issue because I need to keep User1 connected to the Public share).Is this a limitation of SMB? Or am I missing a configuration? Please point me in the right direction

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Ubuntu Servers :: How Many Connections Can XAMPP Handle

Jul 23, 2010

i would like to know how many connections per sec/min/hour, xampp can handle. I'm going to run SMF forum on my box, because i'm not ready yet with real server solution. System stats are: G31M-S2C; 2x2GB Kingston@920Mhz; E5200@3500Mhz; 500GB@7200 Seagate, all powered by Lucid x64. In a time i will migrate to a quad, mobo with raid support, etc. but at that point i'm want to know how much connections can xampp handle. Because of the forum nature, i think of auto deleting topics witn no new replys in 5 days for saving place (there will be minimum 1 and maybe max 5 photos per thread, maximum size 2Mb for each).

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Ubuntu Servers :: Openssh Refusing Connections From Outside?

Sep 11, 2010

When ever I try to sftp or even ssh into my server I get connection refused.

I have the port forwarded in my router.

What am I missing?

Also I have installed Ngnix so what do I need to do for it to work?

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Fedora Servers :: How To Install Similar Packages On Computers

Feb 22, 2010

I want to install similar packages on a bunch of computers, how it can be done? I don't want to install them manually on each PC.

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