I try to write a script which would kill processes of users who are not logged in. My approach is to find out what users are logged in and then kill processes of all nonsystem users who fail the test of being logged. I use `w` for finding all logged in users, but apparently there are users on the list which `w` gives me who own absolutely no process in the output of `ps aux`. How do I log off those users, since killing their processes wont work (since they own no processes)?
I know of /etc/security/limits.conf and that can be used to limit all sorts of good things, but I haven't found anything that talks about using this when the users come from LDAP. Would I be able to do something like
@"Domain Users" soft nproc 25 @"Domain Users" hard nproc 40
where Domain Users is the group all users belong to in our system.
the problem i have is that when i enter my username, the output (my real name) does not display in the output.txt. instead it displays in putty. so when i run my script in putty it shows the message to enter username and after i enter my username my real name appears below it. i want it to show in the output.txt
I run a linux file server for my office and we user SFTP for remote partners to login and download files. Is there a way to see if there are any active connections or logins so I can know when it is safe to perform maintenance on the machine?
Since the machine is almost constantly serving large files, scheduled maintenance is often bumped off due to someone either upload
Is there any gnome tool out there that will allow admins to talk with logged in users? Without it being amsn, skype, or gtalk... I'm looking for something like the 'talk' command but GUI based.
Whenever I want to shut down, I have to enter my password, because shutting down while other users are logged in is a privileged operation. Now, I couldn't download an update because the update lock was in use. I'd be surprised if someone had targeted my system, especially because I didn't install any obscure .debs or anything recently, but I'd really like to find out if it's been compromised somehow. Say, by obtaining an overview of all users currently logged into my system or something. Is that possible?
I installed a few media servers to stream something to my PS3 over the weekend, but now when trying to shutdown the computer, I'm asked to authenticate with a password since other users are still logged in. I installed quite a few programs over the weekend trying to get it to work, so I can't remove a specific one. Is there a way to see which daemons are logged in under a different session? Found it. It turned out to be mythtv.
I have 2 servers, web server & mail server. they show 2 users in the summary area when I run w or top commands. But the actual list of users logged in (using either w or who) shows only 1 user. ps -ef |grep username only shows my current login as a running sshd process.
So I can find no trace of this other user except in the summary line for w or top. I have no shells or other logins left running elsewhere or abruptly terminated, no gui sessions (these are servers), no tty logins. Do I have another user logged in? Has someone hacked me & covered up most of their trail? Why do these commands show 2 users when everything else points to 1 user?
The line in bold is the security issue. There is only 1 user account on the system. There should only be 1 user logged in, not 2 users logged in. The remainder of the log file lists 1 user logged in, for similar log output. 2 users logged in does not appear again in the log file.
Does the second line of bold indicate that an attempt was made to log in to the system using SSH?
There was an internet connection interruption (no service) around the time of the log file event. The service did return, later.
Does that line indicate that an unauthorized user logged in to the system?
If there is a simple way to prevent accidental shutdown when the following situation occurs:
Sometimes, I log in on my father's computer to run some administrations' tasks (updates...). For that, I use SSH since I'm frequently far from my parents and what I want is to prevent a shutdown run by my father. Of course, he should be able to turn off by himself if nobody else is connected.
Molly-Guard allows to prevent distant shutdown, my request is a kind of complementary software.
Does anyone know a project which could fit with this request? Do you have simple ideas to write a short code I know bash, perl, python...
Just noticed this, when I am logged into OpenSuse 11.3 under my default user (autologin) I have 3 of the same user logged in, eg when I run top it shows 3 users and when I run the users command it shows the same user 3 times. Is there any reason for this? Do I need to investigate this at all?
logging in a server through putty in the same network when i executed last command its showing system ip logged in time and logged out time the output as followsthis is my system oot pts1 xx.xx.xx day month date time in time out timeand similarly am geeting other than this likeroot :0day month date time still logged in this is from more than 3 days its logged in
When I'm logged into my account, I can't shut down the computer if someone else is also logged in unless I supply the root password. However, if I log out, I can shut down from GDM without being challenged, even though another person is logged in, which could cause problems if that person is in the middle of some work. Is there a way to password-protect the gdm shutdown function if people are logged in?
On Ubuntu 10.04 when there are more than just one user logged in, if one of users logs off system hangs with a black screen.
After I reboot the machine and log in again, just after GDM login screen I get a window with a message about PowerMeter crash, with suggestion to 'cancel' and 'log off'. Only 'Log off' works, i.e. I'm successfully logged in.
Last entries from system.log before system freeze are:
I can't seem to get last logged in dat/time for vsftpd users. They are linux users maintained within passwd groups ect ... i think this is because ftp doesn't actually give them a real session. That being true, how do i get the last logged in time for my ftp users?
I want to count the number of users who have logged in multiple terminals ? How will I get this ? I always get the total number of users. How will I get the uniq number of users with multiple logins ?
Have recently setup Samba on a fresh install of Fedora 14 so that I can use it as a workstation in a Windows 2003 (win2k3) domain.
The install of Samba seems to have worked as I can connect to the Domain using ADS and kerberos. selinux and firewall have been disabled until I have it working 100%
The problem lies when i try to login to Gnome or TTY. It begins to create the home directory for the domain user logging in but after a certain process Fedora logs the user out of the system.
Have looked through several log files (/var/log/messages, log.winbindd, log.winbindd-dc-connect) but am unable to debug it any further.
Have posted the config files below which shows the Fedora machine is successfully connected to the domain as it lists its groups, users and validates logon credentials - it just won't logon!
Where i can go about debugging. Also if you need additional configs.
I am facing login issues when i try to login as admin using phpldapadmin into ldap server. Installed phpldapadmin for administering ldap server from the repository:
1)[url]
2)yum install phpldapadmin
Able to see the default phpldapadmin login page.
ldapadmin throws the error as "Bad username/password.Please try again"
But when i login as anonymous i am able to login but the web page asks whether to create the root domain?
whether anything needs to be done for making it login as admin.
Been using CentOS for a couple of weeks and have a few quirks I need help with. This is a fresh install of CentOS 5.5. I'd love for VNC Server to start up as soon as the computer reboots. It seems my VNC Server only works when I log in using the GUI at the computer itself. After a reboot I can remotely SSH into it successfully, but cannot VNC to it. I then have to physically get to the computer and log into the GUI, and wa-la I can VNC to it. I have not edited any conf files - seeing as my last attempt at getting this working got me nowhere. I have only enabled Remote Desktop through the GUI.
From Solaris I know a command "lastlog" which shows the times when each existing user logged in the last time.
When I enter the same command in Ubuntu then it is executed (=it must exist) but for all users "** Never logged in **" is displayed although of cause at least the current user must be logged in some time. Do I have to enable this kind of logging somehow?
I recently installed FC14 as my server and is able to ssh and vnc into the server when locally logged in. If i logged out (at login screen) then i cant ssh or vnc into the server. It is pointless to have a server if i am not able to remote in via ssh and vnc.
