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Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
Ok guys, I have an ubuntu box sitting in my room. I use ssh to login remotely (well, usually I am only a few feet away, but whatever) for a terminal, or I use freenx to login if I want the full desktop (freenx is a remote login program that works over ssh).
This worked great, up until a few days ago...
Now if I try to login via ssh I get the login prompt in a few seconds, but it takes ~30s for the password prompt to come up. From there it seems to work about like it should. But more importantly, freenx is acting very odd. The initial connection takes a little longer than before (but not more than about 30s), but then it sits for about a minute with a black screen, then I get the gnome loading window, then I get my desktop, then it sits for another minute and I get the top/bottom menu bars, and then some programs (like firefox) load normally, but others (like the terminal) are really weird. The outline of the window loads normally, then it sits for ~30s all blank, then it loads like it should. After that it runs at a normal speed.
I have ruled out any dns problems (I have the same server as in my fedora box, and lookups give the same response on both boxes).
I tried a complete reinstalling openssh (and I had to reinstall freenx in order to do a complete removal of openssh) but no change :(
Any suggestions?
I really don't want to reinstall, as I finally got the server working correctly... I am kicking myself for not having made the backup sooner
Geometrically Frustrated Registered Member #6
Joined: Thu Feb 02 2006, 04:18AM
Location: Bowdoin, Maine
Posts: 373
Did you use the --purge option when you removed openssh and freenx? Purge removes configuration files, which is pretty important when reinstalling software to try to fix a problem. I'm not sure what your problem could be. The best I can do is suggest that you google and look on ubuntuforums and the ubuntu wiki.
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
Yes I did the purge uninstall.
I should point out that during the reinstall freenx spit out a bunch of errors about ssh, (which it does not do on the fedora box) mostly saying that certian features will not be available.
I tried searching the forums, and everything pointed to DNS problems; but I am 99% sure that dns is fine
peter@dell:~$ sudo nxsetup --uninstall --purge Removing special user "nx" ...done Removing session database ...done Removing logfile ...done Removing home directory of special user "nx" ...done Removing configuration files ...done Ok, nxserver is uninstalled
To complete the uninstallation process, remove the FreeNX scripts in /usr/lib/nx and the /etc/nxserver/node.conf configuration file. peter@dell:~$ sudo nxsetup --install ------> It is recommended that you use the NoMachine key for easier setup. If you answer "y", FreeNX creates a custom KeyPair and expects you to setup your clients manually. "N" is default and uses the NoMachine key for installation.
Do you want to use your own custom KeyPair? [y/N] nSetting up /etc/nxserver ...done Generating public/private dsa key pair. Your identification has been saved in /etc/nxserver/users.id_dsa. Your public key has been saved in /etc/nxserver/users.id_dsa.pub. The key fingerprint is:
******************************************* Setti
ng up /var/lib/nxserver/db ...done Setting up /var/log/nxserver.log ...done Setting up special user "nx" ...Adding system user `nx'... Adding new user `nx' (109) with group `nx'. Creating home directory `/var/lib/nxserver/home'. done Setting up known_hosts and authorized_keys2 ...done Setting up permissions ...done
----> Testing your nxserver configuration ... Warning: Could not find nxdesktop in /usr/lib/nx. RDP sessions won't work. Warning: Could not find nxviewer in /usr/lib/nx. VNC sessions won't work. Warning: Invalid value "DEFAULT_X_SESSION=/etc/X11/xdm/Xsession" Users might not be able to request a default X session. Warning: Invalid value "COMMAND_START_KDE=/usr/bin/dbus-launch --sh-syntax --exit-with-session startkde" Users will not be able to request a KDE session. Warning: Invalid value "COMMAND_START_GNOME=/usr/bin/dbus-launch --sh-syntax --exit-with-session gnome-session" Users will not be able to request a Gnome session. Warning: Invalid value "COMMAND_START_CDE=cdwm" Users will not be able to request a CDE session. Warning: Invalid value "COMMAND_SMBMOUNT=smbmount". You'll not be able to use SAMBA. Warning: Invalid value "COMMAND_SMBUMOUNT=smbumount". You'll not be able to use SAMBA.
Warnings occured during config check. To enable these features please correct the configuration file.
<---- done
----> Testing your nxserver connection ... The authenticity of host '127.0.0.1 (127.0.0.1)' can't be established. RSA key fingerprint is ******************************************. Are you sure you want to continue connecting (yes/no)? Fatal error: Could not connect to NX Server.
Please check your ssh setup:
- Make sure "nx" is one of the AllowUsers in sshd_config. - Make sure your sshd allows public key authentication. - Make sure your sshd is really running on port 22. - Make sure your sshd_config AuthorizedKeysFile in sshd_config is set to authorized_keys2. peter@dell:~$
I think I got those errors when I installed the first time, but some of them may be new. None of them explain the pause during the loading of programs...
I can connect locally by using 127.0.0.1 for the address, so I know that 127.0.0.1 is good...
I also think that my config files are good since I can connect, it is just slow...
Geometrically Frustrated Registered Member #6
Joined: Thu Feb 02 2006, 04:18AM
Location: Bowdoin, Maine
Posts: 373
Weird errors, I'm not sure why you get them. Those paths should be valid for an ubuntu system.
You say that people have said it could be a DNS issue.. Have you tried connecting using an IP address?
Freenx sounds useful, so I'm going to install it on my Kubuntu box upstairs. I'll try connecting to it with Ubuntu's Terminal Server Client (speaking of which, perhaps it is your client that is causing problems?). I'll report back in a few minutes.
[edit] Scratch that. Too much non-standard stuff, I don't like it.
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
I know my client is fine, it connects to my fedora box just fine.
I usually connect with a real ip address, I just tired localhost because there was an error about it.
What do you mean by non-standard stuff?
For the simplest approach you can use nomachines software (they have a free client for most os'es, and a free server that allows up to 2 connections). If you need more than that you need to use freenx.
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SSH/FreeNX problems
