[gentoo-user] remote desktop suggestion

[gentoo-user] remote desktop suggestion

[Valmor de Almeida]

Hello,

I would like to try a remote desktop server/client app (linux to linux).
Would anyone have suggestions? freenx x ltsp x vnc x others?

Thanks,

--
Valmor

Re: [gentoo-user] remote desktop suggestion

[Iain Buchanan]

On Thu, 2010-01-21 at 17:10 -0500, Valmor de Almeida wrote:
> Hello,
> 
> I would like to try a remote desktop server/client app (linux to linux).
> Would anyone have suggestions? freenx x ltsp x vnc x others?

I've settled on tightvnc since so many different clients and servers
support it (windows, linux, etc).  The Gnome vnc server (vino) also
supports tightvnc extentions.  It can be a bit of a hassle to get going,
but make sure "vino" is running on the server as a logged-in user.  Then
run (I use net-misc/tightvnc):

$ vncviewer -encodings tight host
or to tunnel it over ssh:
$ vncviewer -encodings tight -via 123.456.789.012 localhost
and to change the ssh port:
$ VNC_VIA_CMD="/usr/bin/ssh -p 12345 -f -L %L:%H:%R %G sleep 20" vncviewer -via 123.456.789.012 localhost

It works pretty well, even over dialup.

You do need the remote user logged in though.  If you want a
terminal-services type model, then you can set up vnc to run as root and
take users to the gdm (or other) login manager.  Search Google for the
instructions.  I've seen it working, but never done it myself.  I would
definitely put it behind ssh in this case.

HTH,
-- 
Iain Buchanan <iaindb at netspace dot net dot au>

"My education message will resignate amonst all parents."

George W. Bush
January 19, 2000
Quoted in the New York Post.

[gentoo-user] Re: remote desktop suggestion

[Nikos Chantziaras]

On 01/22/2010 12:10 AM, Valmor de Almeida wrote:
>
> Hello,
>
> I would like to try a remote desktop server/client app (linux to linux).
> Would anyone have suggestions? freenx x ltsp x vnc x others?

I use x2go, which is based on NX.  FreeNX, which I used before, was 
semi-abandoned at some point.

You can find it in the nx overlay.

Re: [gentoo-user] remote desktop suggestion

[Paul Hartman]

On Thu, Jan 21, 2010 at 4:10 PM, Valmor de Almeida <val.gentoo@gmail.com> wrote:
>
> Hello,
>
> I would like to try a remote desktop server/client app (linux to linux).
> Would anyone have suggestions? freenx x ltsp x vnc x others?
>
> Thanks,

definitely one of the NX or NX-derived products. The performance is
lightyears ahead of any other and there are clients for
windows/mac/solaris and it uses ssh already so no need to mess with
tunnelling. It can also proxy local VNC and RDP connections to make
them faster, too.

Re: [gentoo-user] Re: remote desktop suggestion

[Valmor de Almeida]

Nikos Chantziaras wrote:
[snip]
> I use x2go, which is based on NX.  FreeNX, which I used before, was 
> semi-abandoned at some point.
> 
> You can find it in the nx overlay.
> 
Will give x2go a try. Thanks,

--
Valmor

Re: [gentoo-user] remote desktop suggestion

[Amit Dor-Shifer]

Paul Hartman wrote:
> On Thu, Jan 21, 2010 at 4:10 PM, Valmor de Almeida <val.gentoo@gmail.com> wrote:
>   
>> Hello,
>>
>> I would like to try a remote desktop server/client app (linux to linux).
>> Would anyone have suggestions? freenx x ltsp x vnc x others?
>>
>> Thanks,
>>     
>
> definitely one of the NX or NX-derived products. The performance is
> lightyears ahead of any other and there are clients for
> windows/mac/solaris and it uses ssh already so no need to mess with
> tunnelling. It can also proxy local VNC and RDP connections to make
> them faster, too.
>
>   
I tried nxserver-freenx. The performance is indeed impressive. Yet it 
didn't work 'out-of-the-box'. I had to assign write perms over /tmp, as 
nx user is attempting to write to that folder.
FYI.
Amit

Re: [gentoo-user] remote desktop suggestion

[Alan McKinnon]

On Wednesday 27 January 2010 00:01:54 Amit Dor-Shifer wrote:
> Paul Hartman wrote:
> > On Thu, Jan 21, 2010 at 4:10 PM, Valmor de Almeida <val.gentoo@gmail.com> 
wrote:
> >> Hello,
> >>
> >> I would like to try a remote desktop server/client app (linux to linux).
> >> Would anyone have suggestions? freenx x ltsp x vnc x others?
> >>
> >> Thanks,
> >
> > definitely one of the NX or NX-derived products. The performance is
> > lightyears ahead of any other and there are clients for
> > windows/mac/solaris and it uses ssh already so no need to mess with
> > tunnelling. It can also proxy local VNC and RDP connections to make
> > them faster, too.
> 
> I tried nxserver-freenx. The performance is indeed impressive. Yet it
> didn't work 'out-of-the-box'. I had to assign write perms over /tmp, as
> nx user is attempting to write to that folder.

/tmp MUST have write permissions anyway. It needs to be 777 plus sticky dir as 
the entire point of it is for any user to write to it

So your box was broken. If it had been fixed, nx would probably have worked 
out the box

-- 
alan dot mckinnon at gmail dot com

[gentoo-user] configuring x2go on gentoo

[Valmor de Almeida]

Nikos Chantziaras wrote:
> On 01/22/2010 12:10 AM, Valmor de Almeida wrote:
>> Hello,
>>
>> I would like to try a remote desktop server/client app (linux to linux).
>> Would anyone have suggestions? freenx x ltsp x vnc x others?
> 
> I use x2go, which is based on NX.  FreeNX, which I used before, was 
> semi-abandoned at some point.
> 
> You can find it in the nx overlay.
> 

I am experimenting with it. I could not find config instructions for
gentoo therefore I am following

http://wiki.archlinux.org/index.php/X2go

Is this sufficient?
Does fuse need to be a module or can it be built into the kernel? I am
follwing the latter.

Thanks for inputs.

--
Valmor

[gentoo-user] Re: configuring x2go on gentoo

[Nikos Chantziaras]

On 02/01/2010 08:06 PM, Valmor de Almeida wrote:
> Nikos Chantziaras wrote:
>> On 01/22/2010 12:10 AM, Valmor de Almeida wrote:
>>> Hello,
>>>
>>> I would like to try a remote desktop server/client app (linux to linux).
>>> Would anyone have suggestions? freenx x ltsp x vnc x others?
>>
>> I use x2go, which is based on NX.  FreeNX, which I used before, was
>> semi-abandoned at some point.
>>
>> You can find it in the nx overlay.
>>
>
> I am experimenting with it. I could not find config instructions for
> gentoo therefore I am following
>
> http://wiki.archlinux.org/index.php/X2go
>
> Is this sufficient?
> Does fuse need to be a module or can it be built into the kernel? I am
> follwing the latter.
>
> Thanks for inputs.

Don't know about the server configuration on Gentoo.  I only run the 
client on my Gentoo box.  The server runs on a Debian machine and IIRC 
the configuration was pretty much automatic there.

Re: [gentoo-user] Re: configuring x2go on gentoo

[Momesso Andrea]

On Monday 01 February 2010 19:57:52 Nikos Chantziaras wrote:
> On 02/01/2010 08:06 PM, Valmor de Almeida wrote:
> > Nikos Chantziaras wrote:
> >> On 01/22/2010 12:10 AM, Valmor de Almeida wrote:
> >>> Hello,
> >>> 
> >>> I would like to try a remote desktop server/client app (linux to
> >>> linux). Would anyone have suggestions? freenx x ltsp x vnc x others?
> >> 
> >> I use x2go, which is based on NX.  FreeNX, which I used before, was
> >> semi-abandoned at some point.
> >> 
> >> You can find it in the nx overlay.
> > 
> > I am experimenting with it. I could not find config instructions for
> > gentoo therefore I am following
> > 
> > http://wiki.archlinux.org/index.php/X2go
> > 
> > Is this sufficient?
> > Does fuse need to be a module or can it be built into the kernel? I am
> > follwing the latter.
> > 
> > Thanks for inputs.
> 
> Don't know about the server configuration on Gentoo.  I only run the
> client on my Gentoo box.  The server runs on a Debian machine and IIRC
> the configuration was pretty much automatic there.

Nikos, is your debian server logging something like this every 5 seconds?

Feb  2 14:20:24 revolver sudo:     root : TTY=unknown ; PWD=/ ; USER=root ; 
COMMAND=/usr/bin/x2gopgwrapper listsessionsroot revolver
Feb  2 14:20:24 revolver sudo: pam_unix(sudo:session): session opened for user 
root by (uid=0)
Feb  2 14:20:24 revolver sudo: pam_unix(sudo:session): session closed for user 
root
Feb  2 14:20:24 revolver su[25114]: Successful su for postgres by root
Feb  2 14:20:24 revolver su[25114]: + ??? root:postgres
Feb  2 14:20:24 revolver su[25114]: pam_unix(su:session): session opened for 
user postgres by (uid=0)
Feb  2 14:20:24 revolver su[25114]: pam_unix(su:session): session closed for 
user postgres
Feb  2 14:20:29 revolver sudo:     root : TTY=unknown ; PWD=/ ; USER=root ; 
COMMAND=/usr/bin/x2gopgwrapper listsessionsroot revolver
Feb  2 14:20:29 revolver sudo: pam_unix(sudo:session): session opened for user 
root by (uid=0)
Feb  2 14:20:29 revolver sudo: pam_unix(sudo:session): session closed for user 
root
Feb  2 14:20:29 revolver su[25126]: Successful su for postgres by root
Feb  2 14:20:29 revolver su[25126]: + ??? root:postgres
Feb  2 14:20:29 revolver su[25126]: pam_unix(su:session): session opened for 
user postgres by (uid=0)
Feb  2 14:20:29 revolver su[25126]: pam_unix(su:session): session closed for 
user postgres
Feb  2 14:20:34 revolver sudo:     root : TTY=unknown ; PWD=/ ; USER=root ; 
COMMAND=/usr/bin/x2gopgwrapper listsessionsroot revolver
Feb  2 14:20:34 revolver sudo: pam_unix(sudo:session): session opened for user 
root by (uid=0)
Feb  2 14:20:34 revolver sudo: pam_unix(sudo:session): session closed for user 
root
Feb  2 14:20:34 revolver su[25138]: Successful su for postgres by root
Feb  2 14:20:34 revolver su[25138]: + ??? root:postgres
Feb  2 14:20:34 revolver su[25138]: pam_unix(su:session): session opened for 
user postgres by (uid=0)
Feb  2 14:20:34 revolver su[25138]: pam_unix(su:session): session closed for 
user postgres


My gentoo x2go server works fine, but I have those messages fullfilling my 
log, and I don't know how to solve.

---
TopperH
http://topperh.blackmamba.kicks-ass.org

Re: [gentoo-user] Re: configuring x2go on gentoo

[Valmor de Almeida]

On Mon, Feb 1, 2010 at 1:57 PM, Nikos Chantziaras <realnc@arcor.de> wrote:
> On 02/01/2010 08:06 PM, Valmor de Almeida wrote:
[snip]
>
> Don't know about the server configuration on Gentoo.  I only run the client
> on my Gentoo box.  The server runs on a Debian machine and IIRC the

Here are the steps I followed to configure and test the server.

1) emerge x2goserver  (needed to rebuild the kernel with FUSE)
2) following message from emerge of postgresql-8.1.11 did:
       emerge --config =postgresql-8.1.11
3)  /etc/init.d/postgresql start
4) visudo and added
    users ALL=(ALL) NOPASSWD: /usr/bin/x2gopgwrapper
5) run script to create database
     cd /usr/share/x2go/script
     ./x2gocreatebase.sh
6) /etc/init.d/postgresql restart
7) /etc/init.d/x2goserver start

The /var/log/messages file is filled with

Feb  1 17:45:56 xeon0 sudo:     root : TTY=unknown ; PWD=/ ; USER=root
; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot xeon0
Feb  1 17:45:56 xeon0 sudo: pam_unix(sudo:session): session opened for
user root by (uid=0)
Feb  1 17:45:56 xeon0 sudo: pam_unix(sudo:session): session closed for user root
Feb  1 17:45:56 xeon0 su[3869]: Successful su for postgres by root
Feb  1 17:45:56 xeon0 su[3869]: + ??? root:postgres
Feb  1 17:45:56 xeon0 su[3869]: pam_unix(su:session): session opened
for user postgres by (uid=0)
Feb  1 17:45:57 xeon0 su[3869]: pam_unix(su:session): session closed
for user postgres
Feb  1 17:46:02 xeon0 sudo:     root : TTY=unknown ; PWD=/ ; USER=root
; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot xeon0
Feb  1 17:46:02 xeon0 sudo: pam_unix(sudo:session): session opened for
user root by (uid=0)
Feb  1 17:46:02 xeon0 sudo: pam_unix(sudo:session): session closed for user root
Feb  1 17:46:02 xeon0 su[3880]: Successful su for postgres by root
Feb  1 17:46:02 xeon0 su[3880]: + ??? root:postgres
Feb  1 17:46:02 xeon0 su[3880]: pam_unix(su:session): session opened
for user postgres by (uid=0)
Feb  1 17:46:02 xeon0 su[3880]: pam_unix(su:session): session closed
for user postgres

Any ideas on how to stop this?

Thanks,

--
Valmor

[gentoo-user] Re: configuring x2go on gentoo

[Nikos Chantziaras]

On 02/02/2010 02:29 PM, Momesso Andrea wrote:
> On Monday 01 February 2010 19:57:52 Nikos Chantziaras wrote:
>> On 02/01/2010 08:06 PM, Valmor de Almeida wrote:
>>> Nikos Chantziaras wrote:
>>>> On 01/22/2010 12:10 AM, Valmor de Almeida wrote:
>>>>> Hello,
>>>>>
>>>>> I would like to try a remote desktop server/client app (linux to
>>>>> linux). Would anyone have suggestions? freenx x ltsp x vnc x others?
>>>>
>>>> I use x2go, which is based on NX.  FreeNX, which I used before, was
>>>> semi-abandoned at some point.
>>>>
>>>> You can find it in the nx overlay.
>>>
>>> I am experimenting with it. I could not find config instructions for
>>> gentoo therefore I am following
>>>
>>> http://wiki.archlinux.org/index.php/X2go
>>>
>>> Is this sufficient?
>>> Does fuse need to be a module or can it be built into the kernel? I am
>>> follwing the latter.
>>>
>>> Thanks for inputs.
>>
>> Don't know about the server configuration on Gentoo.  I only run the
>> client on my Gentoo box.  The server runs on a Debian machine and IIRC
>> the configuration was pretty much automatic there.
>
> Nikos, is your debian server logging something like this every 5 seconds?
>
> Feb  2 14:20:24 revolver sudo:     root : TTY=unknown ; PWD=/ ; USER=root ;
> COMMAND=/usr/bin/x2gopgwrapper listsessionsroot revolver
> Feb  2 14:20:24 revolver sudo: pam_unix(sudo:session): session opened for user
> root by (uid=0)
> Feb  2 14:20:24 revolver sudo: pam_unix(sudo:session): session closed for user
> root

Yup.

[gentoo-user] Re: configuring x2go on gentoo

[Nikos Chantziaras]

On 02/02/2010 04:37 PM, Valmor de Almeida wrote:
> On Mon, Feb 1, 2010 at 1:57 PM, Nikos Chantziaras<realnc@arcor.de>  wrote:
>> On 02/01/2010 08:06 PM, Valmor de Almeida wrote:
> [snip]
>>
>> Don't know about the server configuration on Gentoo.  I only run the client
>> on my Gentoo box.  The server runs on a Debian machine and IIRC the
>
> Here are the steps I followed to configure and test the server.
>
> 1) emerge x2goserver  (needed to rebuild the kernel with FUSE)
> 2) following message from emerge of postgresql-8.1.11 did:
>         emerge --config =postgresql-8.1.11
> 3)  /etc/init.d/postgresql start
> 4) visudo and added
>      users ALL=(ALL) NOPASSWD: /usr/bin/x2gopgwrapper
> 5) run script to create database
>       cd /usr/share/x2go/script
>       ./x2gocreatebase.sh
> 6) /etc/init.d/postgresql restart
> 7) /etc/init.d/x2goserver start
>
> The /var/log/messages file is filled with
>
> Feb  1 17:45:56 xeon0 sudo:     root : TTY=unknown ; PWD=/ ; USER=root
> ; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot xeon0
> Feb  1 17:45:56 xeon0 sudo: pam_unix(sudo:session): session opened for
> user root by (uid=0)
> Feb  1 17:45:56 xeon0 sudo: pam_unix(sudo:session): session closed for user root
> Feb  1 17:45:56 xeon0 su[3869]: Successful su for postgres by root
> Feb  1 17:45:56 xeon0 su[3869]: + ??? root:postgres
> Feb  1 17:45:56 xeon0 su[3869]: pam_unix(su:session): session opened
> for user postgres by (uid=0)
> Feb  1 17:45:57 xeon0 su[3869]: pam_unix(su:session): session closed
> for user postgres
> Feb  1 17:46:02 xeon0 sudo:     root : TTY=unknown ; PWD=/ ; USER=root
> ; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot xeon0
> Feb  1 17:46:02 xeon0 sudo: pam_unix(sudo:session): session opened for
> user root by (uid=0)
> Feb  1 17:46:02 xeon0 sudo: pam_unix(sudo:session): session closed for user root
> Feb  1 17:46:02 xeon0 su[3880]: Successful su for postgres by root
> Feb  1 17:46:02 xeon0 su[3880]: + ??? root:postgres
> Feb  1 17:46:02 xeon0 su[3880]: pam_unix(su:session): session opened
> for user postgres by (uid=0)
> Feb  1 17:46:02 xeon0 su[3880]: pam_unix(su:session): session closed
> for user postgres
>
> Any ideas on how to stop this?

I get that too.  I just ignore it though.  If the messages bother you, I 
guess you can have syslog-ng filter them out.  It would probably be 
cleaner to suppress them at their origin - that would be sudo and su - 
but I don't know how.

Re: [gentoo-user] Re: configuring x2go on gentoo

[Valmor de Almeida]

On Tue, Feb 2, 2010 at 9:37 AM, Valmor de Almeida <val.gentoo@gmail.com> wrote:
[snip]
>    users ALL=(ALL) NOPASSWD: /usr/bin/x2gopgwrapper

There is a "%" missing at the beginning of the line above.

My x2go client/server is not working. It starts a session but
immediately kicks me out. This is what I see on the client side after
firing x2goclient (at this point I am only trying to open an xterm on
the server):

   Can't load translator (:/x2goclient_en_us) !
   Can't load translator (:/qt_en_US) !
   Selected from list
   normal
   "export HOSTNAME && x2golistsessions"
   host: "192.168.0.4"
   ""
   ""
   exitCode:  0  status: 0
   normal
   "x2gostartagent 1280x1024 lan 16m-jpeg-9 unix-kde-depth_24 us
pc105/us 0 R xterm"
   host: "192.168.0.4"
   "50
   f3bb191128995c903396a065e1b1d1da
   5941
   dealmeida-50-1265133894_stRxterm_dp24
   30001
   30002
   30003
   "
   ""
   exitCode:  0  status: 0
   tunnel
   normal
   "mkdir ~/.pulse;echo "default-server=localhost:30002" >
~/.pulse/client.conf"
   host: "192.168.0.4"
   tunnel
   ""
   ""
   exitCode:  0  status: 0
   normal
   "setsid x2goruncommand 50 5941
dealmeida-50-1265133894_stRxterm_dp24 30002 /usr/bin/xterm nosnd R>&
/dev/null & exit"
   host: "192.168.0.4"
   ""
   ""
   exitCode:  0  status: 0
   QProcess: Destroyed while process is still running.
   QProcess: Destroyed while process is still running.
   check command message
   normal
   "x2gocmdexitmessage dealmeida-50-1265133894_stRxterm_dp24"
   host: "192.168.0.4"
   "exec /usr/bin/xterm
   "
   ""
   exitCode:  0  status: 0


On the server side, in the messages file I can't see what is wrong
(here is the beginning):

Feb  2 13:17:23 xeon0 sshd[7559]: Accepted keyboard-interactive/pam
for dealmeida from 192.168.0.200 port 37244 ssh2
Feb  2 13:17:23 xeon0 sshd[7559]: pam_unix(sshd:session): session
opened for user dealmeida by (uid=0)
Feb  2 13:17:23 xeon0 sudo: dealmeida : TTY=unknown ;
PWD=/home/dealmeida ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper
listsessions xeon0
Feb  2 13:17:23 xeon0 sudo: pam_unix(sudo:session): session opened for
user root by (uid=0)
Feb  2 13:17:23 xeon0 sudo: pam_unix(sudo:session): session closed for user root
Feb  2 13:17:23 xeon0 su[7567]: Successful su for postgres by root
Feb  2 13:17:23 xeon0 su[7567]: + ??? root:postgres
Feb  2 13:17:23 xeon0 su[7567]: pam_unix(su:session): session opened
for user postgres by (uid=0)
Feb  2 13:17:23 xeon0 su[7567]: pam_unix(su:session): session closed
for user postgres
Feb  2 13:17:23 xeon0 sshd[7559]: pam_unix(sshd:session): session
closed for user dealmeida
Feb  2 13:17:23 xeon0 sshd[7572]: Accepted keyboard-interactive/pam
for dealmeida from 192.168.0.200 port 37245 ssh2
Feb  2 13:17:23 xeon0 sshd[7572]: pam_unix(sshd:session): session
opened for user dealmeida by (uid=0)
Feb  2 13:17:23 xeon0 sudo: dealmeida : TTY=unknown ;
PWD=/home/dealmeida ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper
getdisplays xeon0
Feb  2 13:17:23 xeon0 sudo: pam_unix(sudo:session): session opened for
user root by (uid=0)
Feb  2 13:17:23 xeon0 sudo: pam_unix(sudo:session): session closed for user root
Feb  2 13:17:23 xeon0 su[7585]: Successful su for postgres by root
Feb  2 13:17:23 xeon0 su[7585]: + ??? root:postgres
Feb  2 13:17:23 xeon0 su[7585]: pam_unix(su:session): session opened
for user postgres by (uid=0)
Feb  2 13:17:23 xeon0 su[7585]: pam_unix(su:session): session closed
for user postgres
Feb  2 13:17:23 xeon0 sudo: dealmeida : TTY=unknown ;
PWD=/home/dealmeida ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper
insertsession 50 xeon0 dealmeida-50-1265134643_stRxterm_dp24
Feb  2 13:17:23 xeon0 sudo: pam_unix(sudo:session): session opened for
user root by (uid=0)
Feb  2 13:17:23 xeon0 sudo: pam_unix(sudo:session): session closed for user root
Feb  2 13:17:23 xeon0 su[7599]: Successful su for postgres by root
Feb  2 13:17:23 xeon0 su[7599]: + ??? root:postgres
Feb  2 13:17:23 xeon0 su[7599]: pam_unix(su:session): session opened
for user postgres by (uid=0)
........
........


Any help appreciated. Thanks.

--
Valmor