edoli who, kai users

Thu Mar 9 23:15:44 EET 2006

On 2006-03-09 22:42, "m65 at vivodinet.gr" <m65 at vivodinet.gr> wrote:
> Loipon...epidi den xero ti simeni asfaleia, eheis dikio, giati spoudasa
> oikonomika, kai epidi parolafta matheno kai gia afta ta
> themata...asfaleias, alla kai gia alla polla, sou paratheto to IRC
> dialogo pou eixa, kati pou poli tha katalaveis poso dramatika, ma poli
> dramatika eitan axristes oles oi paremvaseis sou...kai to mono pou
> itheles na apodixis itan oti apla den exeis na kaneis kati sovaro...

Exo na kanw kati sobaro.  Den se afora h douleia mou, oute exei sxesh me
to ti pisteueis oti kanei to KDE soy.  Opote asthn apeksw.

> To proto, einai ligo aplo alla dixni oti kai o anthropos pou trexei
> gentoo paraxeneftike, pistevo...o defteros dialogos exei to zoumi pou se
> vgazi apo tin aporia....Read and...silence...

Oxi akribws.

> * Du sprichst jetzt in #KDE
> m6s hello people
> Opio 'sup
> m6s can anyone explain me something about kded?
> Opio if anyone besides me is awake and we know .....
> Opio  then yes.
> m6s I noticed after months of running kde, that I had 2 logons
> m6s what I mean...
> m6s 1. boot pc, 2.enter X 3. start a terminal from kde
> m6s i run who or users command
> m6s and I see three (!!!) logins!!!!
> m6s one for X
> m6s one as pts/0
> m6s one as pts/1 which IS the current terminal
> Opio That is probably odd ..... uptime here is 22 days
> m6s the problem is that with ps, there IS NOWHERE the pts/0 process
> Opio (been logged into KDE 99% of that time ) .....
> Opio Only have one user on who or users ....
> m6s BUT
> m6s when I run lsof, I saw that kded
> m6s had a m6s user account opened for pts/0
> Opio Not sure why you're seeing that; can only tell you that I'm only
> seeing one user here.
> m6s so ... what's going on? what's the login for my X even if I hadn't
> kde? and what happenes with kded? SHouldn't I have only 2 logins? One
> the X and the terminal from the kde afterwards?
> m6s [m6s at localhost ~]$ who
> m6s m6s      :0           Mar  9 19:04
> m6s m6s      pts/0        Mar  9 19:04
> m6s m6s      pts/1        Mar  9 19:21
> Opio I claim (based on looking at who and user on my system) that you
> should only have one login.
> m6s the first two ones, are in the same time opened!
> Opio gvaughan at morpheus ~ $ who
> Opio gvaughan tty1         Feb 16 14:08
> m6s do you run KDE?
> Opio What kernel are you running ?
> Opio Yeah, running it right now .....
> m6s 2.6.14
> Opio Yeah, running 2.6.15 here ......
> Opio How do you start X?  With a daemon, or startx?
> the process of fedora core 3
> Opio running gentoo here ....
> m6s running gentoo ha?
> m6s lucky one :-)

To mono pou mporei na katalabei kapoios apo to parapanw einai oti esy
exeis fedora, oti blepeis ena "login record" sto /var/log/wtmp sou pou
exei ksemeinei apo to xdm/kdm/whatever ki oti zhleueis kapoion "Opio"
pou trexei Gentoo.

Poio apo ola auta exei sxesh me 'asfaleia' akribws?

Eisai sigouros oti exeis katalabei ti deixnei h entolh "who"?  An nai,
ksereis ti einai "controlling terminal" se ena UNIX?  An oxi, giati den
psaxneis pote ena process exei ws "terminal" to :0 kai giati?  Me 5
lepta sto Google tha breis polla, pisteyw...

> KAI TO DEFTERO:
>
> * Du sprichst jetzt in #fedora
> * Das Thema f??r #fedora ist: Welcome to #fedora - The friendly Fedora 24
> Hour help desk. Enjoy ur stay! :)
> * Das Thema f??r #fedora wurde gesetzt durch passwd-!passwd at gawd.biz um
> Sat Feb 25 11:43:41 2006
> m6s anyone?
> znx m6s: whats the matter?
> * exploit_ hat die Verbindung getrennt (Remote host closed the connection)
> m6s 1.booting my fedora
> m6s 2.enter in the kde
> m6s 3.open a terminal
> m6s 4.run who, or run users
> znx ok
> m6s what do you see?
> znx i see 5 me's
> m6s hmmm
> m6s well close the 5 yous
> znx er ?

O znx parakseneyetai giati mpaineis fouriozos me yfos "ti kanei to KDE
sou?  (apantaei autos) e oxi, mhn to afhneis na to kanei".

Apo pou akribws aporrei h au8entia soy sxetika me to ti prepei na kanei
o znx eipame?

> m6s simple
> m6s when I get in
> m6s and I have nothing more open than the terminal inside my kde
> m6s I see, 3 users
> znx ok.. thats fine
> m6s loged in with the who or users command
> m6s ?!?!?!?!??!fine?!??!?!?!?
> znx sure..
> znx type: w
> znx what does the WHAT say?
> m6s kded
> m6s kdeinit
> znx there you go
> znx kded = 1 .. kdeinit = 2 .. term = 3

Se bazei na trekseis 'w' kai sou zhtaei th sthlh "WHAT".  Edw p.x. leei:

% $ w
% 11:05PM  up  3:14, 1 user, load averages: 0.08, 0.09, 0.14
% USER             TTY      FROM              LOGIN@  IDLE WHAT
% keramida         v1       -                 7:51PM  3:13 xinit /usr/X11R6/etc/xdg/xfce4/xinitrc -- -dpi 72
% $

Ti blepeis se ayto?  Oxi exw kanei login sto termatiko ttyv1 kai ekei
etreksa thn entolh "startx", h opoia etrekse kapoia stigmh argotera to
programma "xinit" kai auto exei ksemeinei ekei... kai tha meinei osh wra
einai anoixta ta X11 moy.

Anoigw ena termatiko:

% $ w
% 11:07PM  up  3:16, 2 users, load averages: 0.34, 0.16, 0.16
% USER             TTY      FROM              LOGIN@  IDLE WHAT
% keramida         v1       -                 7:51PM  3:15 xinit /usr/X11R6/etc/xdg/xfce4/xinitrc --
% keramida         p2       :0.0             11:07PM     - w
% $

Blepeis kati diaforetiko?  Ksereis giati?  An oxi, epsakses na breis
kapoio keimeno, biblio, kok. pou na ekshgei giati, prin arxiseis na
xorophdas panw-katw fwnazontas "ME HACKEPSAN! ME HACKEPSAN!"?  An den to
ekanes, giati?

> m6s it says, :0 startkde
> m6s pts/0 kded[kdeinit]
> m6s pts/1 w
> znx :0 = x
> znx type: w
> znx what does the WHAT say?
> m6s kded
> m6s kdeinit
> znx there you go
> znx kded = 1 .. kdeinit = 2 .. term = 3
> m6s it says, :0 startkde
> m6s pts/0 kded[kdeinit]
> m6s pts/1 w
> znx :0 = x
> znx so its .. kded = 1  .. startkde = 2  term = 3   then
> m6s yes I see that....
> m6s but...
> m6s since when kded opens an account

Den anoigei "account".  Sto eipa hdh 2 fores.  Auto pou blepeis sto
apotelesma ths entolhs "w" einai mia eggrafh se ena arxeio, opws p.x. to
``/var/run/utmp''.

Auto omws den apotelei oute asfales, oute egkyro, oute poy xrhsimo
pragma, afou mporei na allaksei eykola.

Sto laptop mou ayth th stigmh p.x. h entolh "w" deixnei:

    $ w
    11:11PM  up  3:20, 1 user, load averages: 0.01, 0.07, 0.12
    USER             TTY      FROM              LOGIN@  IDLE WHAT
    keramida         v1       -                 7:51PM  3:19 xinit /usr/X11R6/etc/xdg/xfce4/xinitrc -- -dpi 72
    $

Auto einai entelws axrhsto otan thn amesws epomenh stigmh dei thn eksodh mias entolhs opws h ps(1) omws:

    $ ps xu
    USER       PID %CPU %MEM   VSZ   RSS  TT  STAT STARTED      TIME COMMAND  |
    keramida  1982  0.2  0.8 47452  4008  ??  Ss   10:11PM   0:03.47 fetchmail|
    keramida   845  0.0  0.4 47796  2272  ??  Is    7:52PM   0:00.01 ssh-agent|
    keramida   866  0.0  2.4 109284 12100  ??  Ss    7:52PM   0:03.38 xfce-mcs|
    keramida   832  0.0  0.5 40408  2772  v1  I     7:51PM   0:00.03 -bash (ba|
    keramida   848  0.0  0.3 37176  1400  v1  I+    7:52PM   0:00.01 xinit /us|
    keramida   853  0.0  0.3 37884  1476  v1  I     7:52PM   0:00.01 sh /usr/X|
    keramida   864  0.0  1.4 82432  7152  v1  S     7:52PM   0:02.96 /usr/X11R|
    keramida   870  0.0  1.9 84072  9988  v1  S     7:52PM   0:04.96 xfwm4 --s|
    keramida   872  0.0  2.0 82612 10080  v1  S     7:52PM   0:06.50 xftaskbar|
    keramida   874  0.0  2.7 85836 13728  v1  S     7:52PM   0:04.01 xfdesktop|
    keramida   876  0.0  2.3 95360 11748  v1  S     7:52PM   0:08.73 xfce4-pan|
    keramida   878  0.0  3.7 130132 19176  v1  S     7:52PM   0:16.04 gaim --s|
    keramida  2079  0.0  1.9 86596  9696  v1  S    10:19PM   1:04.38 xmms     |
    keramida  2389  0.0  0.3 37884  1572  v1  I    10:51PM   0:00.02 /bin/sh /|
    keramida  2393  0.0  0.3 37884  1588  v1  I    10:51PM   0:00.01 /bin/sh /|
    keramida  2397  0.0 12.0 198036 61372  v1  S    10:51PM   0:07.04 /usr/X11|
    keramida   899  0.0  0.3 39180  1792  p1  Ss+   7:53PM   0:00.06 screen -a|
    keramida  1829  0.0  0.6 40408  2908   2  Is+   9:53PM   0:00.06 -/usr/loc|
    keramida  2109  0.0  0.6 40408  2924   1  Ss   10:23PM   0:00.06 -/usr/loc|
    keramida  2379  0.0  0.9 45820  4580   1  T    10:50PM   0:00.25 mutt     |
    keramida  2431  0.0  0.3 37884  1496   1  T    10:59PM   0:00.00 sh -c nem|
    keramida  2432  0.0  2.8 19416 14512   1  T    10:59PM   0:05.06 /home/ker|
    keramida  2543  0.0  0.2 37468  1080   1  R+   11:11PM   0:00.00 ps xu    |
    $

Twra mporeis na mou peis giati ayth h psyxwsh me to "who" kai to "w"?
Kai afou se exei piasei tetoia mania, giati den pas na breis kati pou na
ekshgei *AKRIBWS* ti kanoyn autes oi entoles, para skotizeis ta paparia
tou athwoy kosmoy sto IRC?

> [snip irc log]

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