Server :: Set Up Ssh To Allow Users To Ssh Into The Machine?
Jun 1, 2009
This is my first attempt at setting up a server. I have just installed Ubuntu Server 8.04 fresh from the CD. I have a fixed IP address. I just cannot seem to be able to ssh into the darn thing.
From a Solaris unix box, I get the message "Local: Bad packet length 1349676916."
From a SuSE Linux box, I get the message "Read from socket failed: Connection reset by peer"
From a mac box, I get the message "Connection closed by 'IP address'"
I can ssh out to another server just fine. I don't know what to even do.
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Jun 22, 2010
i am trying to set up a mail server that will support users in a LAN in my school. I am using postfix on a Mandrakelinux distro.
I can send mail when I am root to the other user on my (same) machine both when in command line (mail command) and on Graphical mail client (Kmail ) but the user (sam) cannot send mail to the root account on either interfaces.
I followed the postfix configuration settings on John_Wiley_-_Redhat_Linux_Networking_and_System_Administration_3rd_Edition.
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Jul 21, 2010
I don't know if this is possible... I want that only some of a Windows Domain(Samba) users can to logging in a machine.For example: The user Peter of the domain WORKSPACE can connect to the PC1, but the user Charly of the domain WORKSPACE can not connect to the PC1. How I can implement this?
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Nov 3, 2010
I recently installed vsftpd on my server. I noticed that users on the machine can login into vsftpd with their username and password on the machine and go to their root dir "/home/username".Now, I want to give some people a vsftpd username and password so they can upload and download files and folders to their folder, but this folder has to be in the "/var/www/(username)" folder. I don't want them to be able to go to any other folder than their own folder like "/var", "/etc" or "/home" etc. Also I don't want them to be able to login on the machine as a user, through putty for example. They should only be allowed to acces their folder with vsftpd, nothing else.
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Jun 28, 2009
script which can add a secondary group to all existing users except system users in linux.
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Jan 13, 2010
I've just set up NIS on my home network (probably not necessary on this scale, but I wanted to try it out). The server and the clients are all running Debian Lenny. I've got it up and running and have my NIS users on the server logging into graphical desktops on a client machine.My problem is this: The users cannot access a lot of services that are native to the client because they're not members of the right groups (for example, they have no sound because they're not members of the audio group). I figured it would be easy; just add users to groups with the usermod command but the response I get is that the user in question is not present in /etc/passwd. If I understand NIS correctly I'm not supposed to add my users to /etc/passwd on the client machines.
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Jun 14, 2010
I am running Ubuntu 10.4 I am coming from a windows background and I want to know what is the proper way to share files among multiple users on the same Linux box. In this particular case, I will be sharing jpg images.
I do not have any shares defined and I am not (to my knowledge) running Samba.
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Jan 3, 2011
I have two user accounts on this machine. This problem is particularly noticed when browsing the web in Google Chrome (though I'm not sure if this a Chrome-only problem, so I'm posting this here). My distro is Kubuntu, but all my user accounts use Gnome.
Basically, I have the same font and display settings set up on both user accounts, but the fonts are not showing up the same. I'm not sure if at some point a long time ago I did something on one account that I never did on another to change something, but either way I can't seem to find any difference in any of the settings, yet the display is still different.
This is easier explained with screenshots.
1st user account: [URL]
2nd user account: [URL]
Note how the fonts appear bold and not bold, note the different appearance of the (c) character on the webpage, and note the size of the "Google" image is different.
For Chrome settings, both are set at 100% zoom, so this is not an issue of scale. Both user accounts are also set at 1600x900 resolution. Notice that the Google Chrome fonts are both set exactly the same, as are the Gnome system fonts.
Does anybody have a clue what I'm forgetting to check here? I believe the 2nd user account is the correct one, and the 1st one is wrong, since it clearly looks uglier.
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Nov 26, 2010
I am searching for a way to have multiple sessions or users on the same vnc server. I have a machine that I need to remotely access as root (for admin purposes) and as myself (as the normal user) the rest of the time. I probably will never have to remotely login at the same time as both root and myself (I am not that multitasking!)I searched the web for almost 1 hour without finding anything useful... Right now my /etc/rc.d/rc.vncservers.conf looks like:
[code].....
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Jul 9, 2011
I've installed VirtualBox OSE and have a couple of guest OS setup. I am running Ubuntu 11.04 and VBOSE version 4.x (the most current). Now this installs the guest OS virtual harddrives to a folder in my home directory. How do I get other users on the same host machine access to those virtual machines within VB? Currently logging in as another user and going to Applications/Accessories/VirtualBox OSE ... the list of guest machines is empty save of course on my login.
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May 11, 2011
This is a simple question which hopefully has a simple answer. How do I set up a directory on my user account which is visible and accessible to other users on the *same machine*? For example I have certain files on my account which, if I want another user to be able to access I'd have to (a) copy them to my thumb drive (b) log out, (c) log in to the other account, (d) copy the files from the usb thumb drive
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Aug 17, 2010
I'm setting up a Linux machine thet'll be shared by several users, some of whom will be admins. Is there a way to restrict access to a user's home folder (encrypt or block completely) for other regular/admin users?
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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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May 18, 2010
I have inherited a RedHat 5.4 server that is having an odd issue. Root and all of the user accounts can log in via SSH. Not a single account can log in via the console (sitting in front of the server). If I bring it up in single user made, I can log in with root all day long.
I want to say that this has something to do with PAM, but this is when I play my "Noob" card. Could anyone possibly steer me in the right direction to figure out what is going on?
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Jun 26, 2009
Im trying to config my intranet to be accessible from inside the network (lan) without need of password and ask for a passwd for those who are viewing from Wan ....
Today my intranet can only be accessed from Lan, external access give me an Unauthorized message, I took look around, try #irc and still can get the appropriated help, I hope that someone here could help me on that...
A piece of my config:
Code:
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Jun 21, 2011
iam trying to sync file server data into backup server machine by command- rsync -avu path/of/data ipaddress-of-backup-server:/path/where/to/save after running it ask for root password and manually it is successful.but i want to make it automatic.for that i also tried cronjob and also generated authentication key but iam not successful in login automatically..anybody know how to authenticate root to login for storing data in backup server.
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Jul 12, 2011
I am having problem to collecting email from remote POP3 (all the emails for a domain is stored here) and distribute it after collecting to several users defined to Linux server. I have install postfix in Linux server for email distribution.
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Feb 22, 2010
I would like to set disclaimer like content in my meral mail server, so that all the users should be able to get that content automatically in their outgoing mails.
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Nov 25, 2010
I've setup a Lamp Server for Testing, The Lamp Server is Up & Running on CentOs 5.5
I am now trying to setup a VSFTP server where local users can upload files to there home directory so that Apache can serve web pages straight from the directories of system user home/accounts giving users the ability to run their own web sites which are hosted off the main server [tutorial here: [url]
So far i have been able to serve/display index.html files from the users home directory [url] but so far i cant upload files to any user home directory, every time i try to upload a file with filezilla i get this error message: 553 Could not create file. Critical file transfer error
I have searched online for similar problems like mine and so far i've tried alot of the solution but none seem to work. I'm confused, dont know where i went wrong, i put the users in a group called ftpusers and here are the permissions on the users (test, ftpuser & testftp) home directory. have a look an tell me where i went wrong :(
Also the root directory where the web pages are served from is called public_html here are the permissions
Here is my vsftp.conf file can someone check it to see if i made any errors in there:
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May 18, 2010
I have an issue with users logging into a server. There are multiple (5 or so) database admins that have to log into a windows 2003 server and from there log into a red hat server. Once they are in the rhel box they execute an app (let's say xclock) that gives them an xwindows session on their desktop. Currently only one person can do this at a time, but they have asked me to configure it to allow multiple users to log into the red hat box from the windows server and run an xwindow.
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Mar 22, 2010
I would like to know how to link linux users to have their windows folder (on fileserver) into linux..I have a windows fileserver which hosts AD users home (personal) folder.I also have linux (redhat) with SAMBA. users have their home folder in linux but also want to access their home folder in windows. Is there any solution which automatically creates links in linux home folder, when a user logs into linux he can also view / edit his files in windows home folder.I know to smbmount but there are 500+ users and creating smbmount / smbclient for each would be time consuming also many of the users are dynamic (added / deleted frequently).
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Apr 16, 2010
Amavis-new on my mail server is marking my emails as spam, like so:
Quote:
Apr 16 12:15:52 myserver amavis[30979]: (o3GIFltt008868) Blocked SPAM, AM.PDP-SOCK [xx.xx.xx.xx] [xx.xx.xx.xx] <myemail@mydomain.com> -> <myfriend@hisdomain.com>, quarantine: spam-w1hxRn9Pr4P6.gz, Message-ID: <4BC8A9E8.2070108@mydomain.com>, mail_id: w1hxRn9Pr4P6, Hits: 7.844, size: 6763, 1986 ms
The mail server is not on my local LAN, and all the primary users are roaming. They connect via TLS auth, which is required to make a sendmail connection to my server. I could whitelist all addresses in my domain, but then anyone spoofing my email wouldn't be seen as spam. How do I simply tell amavis-new and/or sendmail not to spam scan TLS authenticated users?
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May 27, 2010
I have installed CentOS on a VMwareWorktation and that CentOS, i also install VMware Server (suscess) and setup a guest OS that, but i start this Guest OS, an error show "You may not power virtual machine in virtual machine"...
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Mar 27, 2010
I want to set up the following server in open suse:dhcpopenldapnfs (to allow users to mount their home directories from the serverI started off with the openldap server. I configured it with dc=localdomain,dc=local as its domain. As the server machine has no internet. Though when I go to add a .ldif file with the following command
Code:
ldapadd -x -D 'cn=Administrator,dc=localdomain,dc=local' -f /home/base.ldif -W
It returns this
[code]....
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Jan 25, 2011
I've got 4 identical 1 TB drives and would like to use them in a software RAID configuration on my home server. I'm running Debian Linux using 'mdadm' utility to manage the software RAID. I don't know how much I've read is fact or dated or even false so I decided I would ask here to get help from people who know more about this than I do. This is essentially just a file server machine to store all my data so being that I've got four identical SATA hard drives, I was thinking about doing RAID level 5. I guess I'll start here and ask if that is the recommended level of RAID. I think RAID level 5 will be fine for my general server usage. My second issue is partitioning the four individual drives to get maximum performance / space from them. Basically just asking here how would you or you recommend I partition the drives? I was thinking about doing three seperate partitions per drive:
/dev/sda1 = 4 GB (swap)/dev/sda2 = 1 GB (/boot)/dev/sda3 = 995 GB (/)Now from that partition schema above, obviously all the types will be 'fd' for RAID and the partition for /boot is going to be bootable. My confusion is that I read Grub doesn't support booting from RAID 5 since Grub can't handle disk assembly. If /dev/sdx2 (sda2, sdb2, sdc2, sdd2) are partitioned for /boot (bootable), how would you guys configure this RAID to match up equally? I don't think I do a RAID level 1 on 4 identical partitions, right?
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Feb 4, 2010
I have configured samba server on fedora machine and i am trying to authenticate a winxp machine through samba server but the issue is winxp machine is not becoming the part of the domain. The error is A domain controller for the domain HOMEDOMAIN could not be contacted.Ensure that the domain name is typed correctly.
If the name is correct, click Details for troubleshooting information.
here is the configuration file text..
# Samba config file created using SWAT
# from UNKNOWN (8)
# Date: 2010/01/31 18:51:36
[global]
workgroup = HOMEDOMAIN
server string = Samba as Domain Controller.
[Code]...
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Jan 17, 2010
I want to join standalone windows xp machine to Linux Domain (Redhat 9)..
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Jan 19, 2011
In a newly installed Linux machine which is a client machine, is not listening to NIS domain server even after setting IP address ,default gateway,and subnet mask.What are all the changes to be done in configuration file.And how can be solved
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Apr 28, 2010
We are using axigen with redhat
linux how to check if email server machine doing spamming.
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Jun 15, 2011
do you guys know how to add a user to a linux box without using useradd?I'm working on a project to disect the process of adding users, but can't use useradd command.I know this involves modifying couple of files such as /etc/passwd, /etc/groups, etc..but i'm sure there is more to it.
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