IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 10 September 2015   (all times are UTC)

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06:23
<alkisg>
Yup, about the virus yesterday, the person that installed it was used to debian, so he set a root password of 1234... :(
06:38
<url>
any idea what the attack vector was that allowed the priv escalation?
06:41
<alkisg>
They logged in as root. What escalation? :)
06:41
root/1234... lame credentials
07:00
<url>
oh ha, damn, I was assuming some exploit, and then a weak root
07:01
*shakes head*
07:10
<vmlintu>
does debian somehow encourage one to set root password to 1234?
07:11
<alkisg>
Of course not, but it's not good to ignore the fact that many users select weak passwords
07:13
<vmlintu>
That's one of the reasons why I like readonly images everywhere - laptops and ltsp servers included. Even if there's an exploit, the damage is easy to repair..
07:13
<alkisg>
Stealing user's bank accounts is not easy to repair :)
07:14
<vmlintu>
well, that requires something else than getting one username and password..
07:14
<alkisg>
Bots do DDOS attacks, they install keyloggers...
07:15
I don't want to rely on only getting infected by "good" viruses
07:16
<vmlintu>
Of course security needs to be in order. Just that it's easier to get back to a known state when you don't need to do a 3 hour reinstall..
07:16
<alkisg>
Fortunately there's always a backup in /opt/ltsp/images/i386.img :)
07:18
<vmlintu>
But are there banks that don't verify transactions by sms or some other channel?
07:18
<alkisg>
paypal is one
07:19
<vmlintu>
Paypal is PITA.. I never use them besides getting fraudulent charges off my cards..
07:19
<alkisg>
There are others that allow small transfers without second verification though
07:20
<vmlintu>
You should put some code in LTSP to make donations to developers.. ;)
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07:20
<alkisg>
Hahaha
07:20
The new ltsp version will be ransomware :P
07:21
<vmlintu>
To boot your client you need to send bitcoins..
07:22
Or you could start mining bitcoins with all the clients..
07:26
<Hyperbyte>
That'd be pretty awesome.
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08:05
<url>
alkisg, forgive my ignorance, other than remembering you hail from greece, oversee the hellenic LTSP (i'm not give to e-stalking)
08:05
where vmlintu suggests you put some code in, are you a contrib/lead dev or similar
08:06
<alkisg>
I'm one of the ltsp devs, yup...
08:06
<url>
cool, nice to know
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08:06
<url>
being a goon (somethingawful) we have one of the lead devs from WINE hangs around a good bit
08:07
and a couple of weeks ago, i found out a former colleague here has enhanced commit on freeBSD - the world is indeed a small place :)
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13:15
<dgroos>
Hi.
13:17
Still having problem that local users can’t log into fat clients. Now neither can users in the AD domain.
13:17
work_alkisg: available to help?
13:21
terminal output from when trying to log in at client, both local user and AD user: http://paste.ubuntu.com/12328041/
13:23
Terminal output when unjoining and rejoining AD domain—shows ip/port numbers. I wonder if there is a conflict with address/ports? http://paste.ubuntu.com/12328071/
13:26
Problem seems to come and go. For the first few hours of use there were no problems, then they have been intermittent since then. Currently no kind of user can authenticate at the fat client.
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13:43
<dgroos>
Oh, now people in AD group can authenticate! (but local users still can’t).
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13:57
<dgroos>
I’ll be touching back throughout (my) day, thanks…
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14:50work_alkisg is now known as alkisg
14:50
<alkisg>
dgroos: here?
14:51
When the problem happens, open epoptes, right client on a client that can't login, and right click -> execute -> open root terminal locally
14:51
From that root terminal, try: ssh user@server
14:51
replace the user with an existing user, first local, then AD
14:51
leave the word "server" exactly as it is, don't replace it
14:52
See what happens there, what messages show up etc
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14:58alkisg is now known as work_alkisg
15:39
<dgroos>
work_alkisg: for local user:
15:39
http://imagebi.../2FBK6FmAiaRc
15:40
try this: http://imagebin.ca/v/2FBK6FmAiaRc
15:41
AD user: http://imagebin.ca/v/2FBKWARxnpXl
15:41
Both users were able to log in!
15:58
When I try to log into that client while at the keyboard, login doesn’t work either for local or AD user.
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16:29
<dgroos>
BB in 60…
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17:28work_alkisg is now known as alkisg
17:28
<alkisg>
dgroos: here?
17:29
dgroos: it sounds like the problem is not authentication, but that the session crashes or exits
17:29
<dgroos>
YES!
17:30
<alkisg>
Is it broken now?
17:30
<dgroos>
Good, I think…
17:30
At the client, I’ll check…
17:30
yes.
17:30
<alkisg>
!vnc-alkisg
17:30
<ltsp>
vnc-alkisg: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect alkisg.no-ip.org This is a reverse connection, it doesn't need port forwarding etc.
17:30
<alkisg>
nope
17:30
!vnc-dide
17:30
<ltsp>
vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
17:31
<alkisg>
This one ^
17:31
<dgroos>
k
17:31
<alkisg>
But I'm connected to my server via vnc, so it'll be slow... :D
17:31
Unfortunately our working schedules don't match at all
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17:48
<alkisg>
dgroos: there's something that fills up your client file system
17:48
that then breaks everything, not just logins
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19:02
<maldridge>
work_alkisg: fills up the client filesystem, or the server filesystem?
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