CentOS 5 :: VNC Server - Works When Logged In Only
Sep 6, 2010
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.
I have an ssh (OpenSSH_5.1p1 Debian-6ubuntu2) client A and a server B set up for public key authentication as described in [URL]
The problem is the following: ssh asks for a password when connecting from A to B without any other ssh session going on between A and B; but if I connect from A to B whenever there is another ssh session between A and B, either I get prompted for the passphrase I used to encrypt the private key or I get logged automatically.
I already checked permissions on B: .ssh is 700 and authorized_keys is 600. I already tried "StrictModes no" in sshd_config. Printing debug information using DEBUG3 does not any useful insight. Moreover, there is no /var/log/secure (is it supposed to be there?)
Right now the computer is far far away from my reach, but when I configured the system I noted that whenever I was locally logged to B and then ssh'ed from A to B, I was logged in without any problem; whenever I was not logged in locally I was asked for a password. Note that at that time I was using a different public/private key pair whose private part had no passphrase.
how to know exactly what cipher is ssh/sshd using for a particular session? Is there a way to know any statistics for a given session (something like the ~s option in section 5 of [URL]
P.S. 2: does the following mean that ssh is using protocol 2.0 or something different than protocol 2.0?
(..........) sshd[2606]: debug1: Enabling compatibility mode for protocol 2.0
i have setup auto ssh login for my server. And it works, but only when i have a active connection. if i use "ssh server.com" it asks for my password. If i then open a new terminal and issue "ssh server.com" it logs right in. I really don*t understand whats wrong.
I have tried setting up 2 virtual machines on my local computer and with the same setup it works fine.
SOLVED: my home folder was encrypted, so when no users were logged in the home folder was unmounted
If I ssh from my laptop (running F10) to the server (centos 5.2) it asks for the password, but everytime I enter the correct password it says incorrect password. when I do the same from the server to my laptop I can get in just fine. I think my passwords are stored as ssha in the LDAP (I tried clear passwords and that dosen't work either).
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
I'm trying to use xmms (or any other audio player) lauched from a remote computer but playing locally. I have a maverick server which has xmms installed. I launch an xdmcp (starnetssh) from a windows machine and I am able to open terminals, panels, emacs, etc but when I open xmms (or MOC, is the other one I tested), it simply doesn't play anything unless the same user is logged on the ubuntu box.
I run a CentOS 5.1 using VMServer on XP. From home I can successfully 'cvs login' to my CVS server. But starting 'cvs update', the connection times out.
Netstat shows the connection as established: # netstat -an | grep 2401 tcp 0 0 192.168.1.35:58651 85.25.xx.xx:2401 ESTABLISHED CVS server is domain managed with dnsalias service (dyndns.org)
Using the same computer at work (other ISP) I have no problems - cvs update works just fine. Can I assume that it is not a port/firewall issue, since "cvs login" is successful? Any clues where to start diggin'?
I have a Centos 5.5 and we make remote connections with Xfree from Windows to the Linux Server. We start the Xsession with the option -clipboard, but it's not working. Which settings do I have to change in the server configuration that the clipboard works in the Xsession?
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.
My webserver accesses a backend mySQL server using CentOS5
The last week, I have been getting a "page Load Error" on my web server whilst others told me they are getting a "broken link" error when they try to access my web site. It has been working fine for the last 12 months until last week.
ADSL, modem and router okay according to service provider (verizon)
I can ping my IP address and my domain name.
# netstat -tap
shows http and https both processes running.
# service httpd restart no issues
I shut down firewall and tried again, but got the same "page load error".
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 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.
When I'm logged on to another host (e.g via ssh), how do I connect to the XServer of that machine (same user is logged in and is running a desktop (gnome))?
You may ask way I wish to do that: There are commands that don't open an X-Window, e.g. xinput, xhost, etc.. and there are situations where you want to run them from remote.
I'm a total Linux noob, but I've needed a working development server for a while so I've put together an old celeron box running Ubuntu Server 10.10.The box runs fine, as does the Apache and MySQL servers, even if they did take a little while to fine tune!The problem I have is that vsftpd doesn't respond unless I'm logged on locally or via putty. As long as a local user is logged in, it's fine. If I try to connect when noone is logged in, then the connection times out waiting for the server message, and thereafter I have to login and stop / restart the vsftpd to make it work again.I'm not sure if the vsftpd is set to run on boot or on login and I have no idea how to check. Vsftpd is set to allow only local users, of which there is only one - so I can't check if it would work with any user logged in
We have one ftp server. Number of users are using it remotly. My requirement is that suppose any user is not connecting to the server using FTP for 15 days then account should get expired/locked automatically. Is it possible?
I setup logging in through putty client with keys, and password disabled, could log in from all machines on my network (xp and 7) with putty.When I finished hut down the server.Today I turned on the server box and thought I'd try logging in through putty. It kept telling me the server was rejecting my key.I plugged in a monitor and keyboard into the server and logged in via password then had no problem logging in through putty client.Question is, every time I shut the server down do I have to plug in the monitor and keyboard, then login, to be able to login remotely?
I am running a mail server with combination of dovecot,sendmail and squirremail as web client. I want to change the password of the user if he/she not logged in for 21 days.
I have a Nis server on Suse 11 which is configured using Yast and nis clients on Suse and CentOs .All clients which is on the Suse Os is working fine. But on CentOs , users couldn't login using nis username.I have mounted home directory using nfs in fstab . I can switch to nis users homedirectory only when i am root. But nis users could'nt login on reboot.' ypcat passwd username ' is showing the output . No selinux is enabled in the client .Is there is any problem with Suse server to Centos Client in nis ??
Possible Duplicate: Automatically start VNC server on startup I have a Linux server at home, and by default no-one is logged in to that box. I'd like to establish a remote desktop connection to it with VNC but this fails, unless I log in first physically. It's strange to me that VNC Viewer doesn't even ask for credentials, it just displays a "connection refused" error message. What's the best way to do this? I'm running Ubuntu 10.04 on the server.
I am looking for the syntax for a sendmail ruleset to log the message subject to the syslog service. I have found a few posts on the web, but none seem to work. The basic appear to be - add the following to the sendmail.mc file then compile the sendmail.cf file using M4. The syntax suggested follows (I believe the rewrite rule is incorrect)(I and using <T> to indicate tabs):
We have 4 servers having rhel 5.2. We have several users logged in on one of them. We have nis server/client running on them and have common home area mounted on all of them. Now we want to disable/block the accounts of the users who have not accessed our servers in last 2 months from today.What logic should we apply to do so? We were checking stat of .bashrc of each user but is not correct logic. We are going to write shell script for the same. We dont want to do anything in users home area or their files.
On my server I some times login from my home where I have an internet connection which does not have a static IP each time I switch on my modem a dynamic IP isgenerated.I see in auth.log logs of following lines Quote:reverse mapping checking getaddrinfo forkkts-kk-dynamic-01.1.168.192.some_broadband.in [192.168.1.2] failed - POSSIBLE BREAK-IN ATTEMPT Accepted publickey for root from 192.168.1.2 port 22852 ssh2when ever I login to my server from home.In this case I do know that it was me who logged in but still why do I see such a log.What is this complaining about?
followed the wiki page which tells you how to configure vnc, i got this working under root, then created a sybase account and also got this working as well, but anytime i shutdown the server for the day and attempt to use VNC the next day, it doesnt work. I get the error unable to connect to host: connection refused (10061)
