Edoardo Pasca ha scritto:
[...]
Non posso nemmeno scrivere in /dev/null senza privilegi di root...
il file /dev/null e' un file particolare:
ls -l /dev/null
crw-rw-rw- 1 root root 1, 3 2007-04-11 09:17 /dev/null
qualcosa ha cambiato i privilegi di /dev/null ?
a me e' successo piu' di una volta, specialmente quando facevo un
upgrade del kernel; in generale e' sufficiente rimettere i privilegi di
/dev/null corretti. Qualche volta succede che all'avvio della macchina
vengano ripristinati i privilegi sbagliati per /dev/null. (si fa con
mknod)
Hai ragione, grazie.
Dimentico sempre di controllare le cose ovvie.
Comunque ho notato che anche sshd ha dei problemi:
error: open /dev/tty failed - could not set controlling tty: Permission
denied
Infine, un altro problema:
sshdPRNG is not seeded
Sembra che /dev sia messa male (sono sotto Xen)...
Ecco la lista dei device (scusate la lunghezza):
lrwxrwxrwx 1 root root 13 May 23 17:43 MAKEDEV -> /sbin/MAKEDEV
crw------- 1 root root 5, 1 May 23 18:18 console
prw------- 1 root root 0 May 23 17:42 initctl
srw-rw-rw- 1 root root 0 May 23 17:43 log
drwxr-xr-x 2 root root 40 May 23 17:42 mapper
crw------- 1 root root 1, 3 May 23 17:42 null
crw------- 1 root root 5, 2 May 23 17:42 ptmx
drwxr-xr-x 2 root root 0 May 23 17:42 pts
brwx------ 1 root root 1, 0 May 23 17:42 ram0
brwx------ 1 root root 1, 1 May 23 17:42 ram1
brwx------ 1 root root 1, 10 May 23 17:42 ram10
brwx------ 1 root root 1, 11 May 23 17:42 ram11
brwx------ 1 root root 1, 12 May 23 17:42 ram12
brwx------ 1 root root 1, 13 May 23 17:42 ram13
brwx------ 1 root root 1, 14 May 23 17:42 ram14
brwx------ 1 root root 1, 15 May 23 17:42 ram15
brwx------ 1 root root 1, 2 May 23 17:42 ram2
brwx------ 1 root root 1, 3 May 23 17:42 ram3
brwx------ 1 root root 1, 4 May 23 17:42 ram4
brwx------ 1 root root 1, 5 May 23 17:42 ram5
brwx------ 1 root root 1, 6 May 23 17:42 ram6
brwx------ 1 root root 1, 7 May 23 17:42 ram7
brwx------ 1 root root 1, 8 May 23 17:42 ram8
brwx------ 1 root root 1, 9 May 23 17:42 ram9
brw------- 1 root root 8, 1 May 23 17:42 root
crw------- 1 root root 10, 135 May 23 17:42 rtc
brwx------ 1 root root 8, 1 May 23 17:42 sda1
brwx------ 1 root root 8, 2 May 23 17:42 sda2
drwxrwxrwt 2 root root 40 May 23 17:42 shm
crw------- 1 root root 4, 0 May 23 17:42 systty
crw------- 1 root root 5, 0 May 23 17:42 tty
crw------- 1 root root 4, 0 May 23 17:42 tty0
crw------- 1 root root 4, 1 May 23 17:42 tty1
crw------- 1 root root 4, 10 May 23 17:42 tty10
crw------- 1 root root 4, 11 May 23 17:42 tty11
crw------- 1 root root 4, 12 May 23 17:42 tty12
crw------- 1 root root 4, 2 May 23 17:42 tty2
crw------- 1 root root 4, 3 May 23 17:42 tty3
crw------- 1 root root 4, 4 May 23 17:42 tty4
crw------- 1 root root 4, 5 May 23 17:42 tty5
crw------- 1 root root 4, 6 May 23 17:42 tty6
crw------- 1 root root 4, 7 May 23 17:42 tty7
crw------- 1 root root 4, 8 May 23 17:42 tty8
crw------- 1 root root 4, 9 May 23 17:42 tty9
crw------- 1 root root 4, 64 May 23 17:42 ttyS0
crw------- 1 root root 4, 65 May 23 17:42 ttyS1
crw------- 1 root root 4, 66 May 23 17:42 ttyS2
crw------- 1 root root 4, 67 May 23 17:42 ttyS3
prw-r----- 1 root adm 0 May 23 18:17 xconsole
crw------- 1 root root 1, 5 May 23 17:42 zero
Saluti e grazie Manlio Perillo
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