RE: Ιndy

[Kleanthis Kremmidas]

Kalimera Antoni,

Nai lathos gia to sash nomiza oti sou trexei to /bin/sh alla to eixa hdh
steilei to mail. :((
Sorry.

Kat'arxin tha ithela na mou peis an exeis to leitourgiko se CD kai ti
leitourgiko exeis kai akoma an exeis compiler (IDO 'h ton gcc).
1. An exeis ta CD tou IRIX 6.2 'h tou 5.3 mporeis na kaneis to parakato. Na
mpeis se  maintenace mode kai na diale3eis to "Install System Software"
(prepei na einai h 2h epilogi). Tote autos tha 3ekinisi to Miniroot
installation (xalarwse den tha kanoume install tipota) kai ousiastika
fortwnei kernel apo to cd kanei mount san / apo to cd enw kanei mount to
/dev/rroot sto /root. 
Otan teleiwsei to miniroot tote se bgazei se mia othoni (tou command line
inst tool - to installation tool ths SGI.). Ekei tha deis giro stis 13-14
epiloges. Mia apo autes einai kai h admin. Pas ekei. Tha deis giro stis
10-11 epiloges kai tha diale3eis kai to 6 ;h to 7 pou einai to root shell
(prosoxi exei kai mia epilogi gia aplo shell).  Trexeis to shell, trexeis
tin mount gia na sigoureutis oti to /dev/rroot einai kato apo to /root, pas
ekei kai kaneis copia to /root/tmp/passwd sto /root/etc/passwd. Patas Ctrl-D
gia na bgeis apo to shell, dialegeis to return gia na bgeis apo to admin
menu kai kaneis quit 'h exit apo to inst kai reboot. Autos einai o tropos
pou proteinei h SGI. 

2. Twra an exeis IRIX 6.2 des an to /sbin/df einai 4755. An nai
xrisimopoihse to parakato programmataki (einai compiled gia 6.2) kai tote
tha pareis euid=0 (kalo!!!). Opote kaneis tin copia san root 'h kaneis kati
allo kako telos panton !!! (copia ena sh me 4755 klp). Logika an to eixate
gia eswteriki xrisi mallon den tha to exei peira3ei auto o proigoumenos
admin kai logika tha doulepsi. An exeis compiler pes mou na sou steilw mia
gkama apo irix bugs gia na deis poio tha sou doulepsi. Logika ta perissotera
apo auta ta bugs h SGI den ta diorthone kai proteinan na bgaleis to setuid
apo to ektelesimo. (hard liseis ponai kefali kopsi kefali)

Auta, 
Kleanthis Kremmidas
System Administrator at Lambrakis Research Foundation (L.R.F.)
E-Mail: kremidas at lrf.gr
        kremidas at freemail.gr

PS: Kamia sxesi me to DOLNET mias kai eimaste mi kerdoskopikos &
ekpaideutikos organismos.  Exoume omws ton idio proedro ton k. X. Lambraki.

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