[Primipassi] problema con permessi kppp

[simone]

Io ho dato il seguente comando,ma una cosa cosa scrivo al posto di group?

ls -l /dev/ttyS*
groups
blackcrow@cassandra:~$ ls -l /dev/ttyS*
crw-rw----  1 root dialout 4,  64 2005-08-27 18:44 /dev/ttyS0
crw-rw----  1 root dialout 4,  65 2005-08-27 18:44 /dev/ttyS1
crw-rw----  1 root dialout 4,  74 2005-08-27 18:44 /dev/ttyS10
crw-rw----  1 root dialout 4,  75 2005-08-27 18:44 /dev/ttyS11
crw-rw----  1 root dialout 4,  76 2005-08-27 18:44 /dev/ttyS12
crw-rw----  1 root dialout 4,  77 2005-08-27 18:44 /dev/ttyS13
crw-rw----  1 root dialout 4,  78 2005-08-27 18:44 /dev/ttyS14
crw-rw----  1 root dialout 4,  79 2005-08-27 18:44 /dev/ttyS15
crw-rw----  1 root dialout 4,  80 2005-08-27 18:44 /dev/ttyS16
crw-rw----  1 root dialout 4,  81 2005-08-27 18:44 /dev/ttyS17
crw-rw----  1 root dialout 4,  82 2005-08-27 18:44 /dev/ttyS18
crw-rw----  1 root dialout 4,  83 2005-08-27 18:44 /dev/ttyS19
crw-rw----  1 root dialout 4,  66 2005-08-27 18:44 /dev/ttyS2
crw-rw----  1 root dialout 4,  84 2005-08-27 18:44 /dev/ttyS20
crw-rw----  1 root dialout 4,  85 2005-08-27 18:44 /dev/ttyS21
crw-rw----  1 root dialout 4,  86 2005-08-27 18:44 /dev/ttyS22
crw-rw----  1 root dialout 4,  87 2005-08-27 18:44 /dev/ttyS23
crw-rw----  1 root dialout 4,  88 2005-08-27 18:44 /dev/ttyS24
crw-rw----  1 root dialout 4,  89 2005-08-27 18:44 /dev/ttyS25
crw-rw----  1 root dialout 4,  90 2005-08-27 18:44 /dev/ttyS26
crw-rw----  1 root dialout 4,  91 2005-08-27 18:44 /dev/ttyS27
crw-rw----  1 root dialout 4,  92 2005-08-27 18:44 /dev/ttyS28
crw-rw----  1 root dialout 4,  93 2005-08-27 18:44 /dev/ttyS29
crw-rw----  1 root dialout 4,  67 2005-08-27 18:44 /dev/ttyS3
crw-rw----  1 root dialout 4,  94 2005-08-27 18:44 /dev/ttyS30
crw-rw----  1 root dialout 4,  95 2005-08-27 18:44 /dev/ttyS31
crw-rw----  1 root dialout 4,  96 2005-08-27 18:44 /dev/ttyS32
crw-rw----  1 root dialout 4,  97 2005-08-27 18:44 /dev/ttyS33
crw-rw----  1 root dialout 4,  98 2005-08-27 18:44 /dev/ttyS34
crw-rw----  1 root dialout 4,  99 2005-08-27 18:44 /dev/ttyS35
crw-rw----  1 root dialout 4, 100 2005-08-27 18:44 /dev/ttyS36
crw-rw----  1 root dialout 4, 101 2005-08-27 18:44 /dev/ttyS37
crw-rw----  1 root dialout 4, 102 2005-08-27 18:44 /dev/ttyS38
crw-rw----  1 root dialout 4, 103 2005-08-27 18:44 /dev/ttyS39
crw-rw----  1 root dialout 4,  68 2005-08-27 18:44 /dev/ttyS4
crw-rw----  1 root dialout 4, 104 2005-08-27 18:44 /dev/ttyS40
crw-rw----  1 root dialout 4, 105 2005-08-27 18:44 /dev/ttyS41
crw-rw----  1 root dialout 4, 106 2005-08-27 18:44 /dev/ttyS42
crw-rw----  1 root dialout 4, 107 2005-08-27 18:44 /dev/ttyS43
crw-rw----  1 root dialout 4, 108 2005-08-27 18:44 /dev/ttyS44
crw-rw----  1 root dialout 4, 109 2005-08-27 18:44 /dev/ttyS45
crw-rw----  1 root dialout 4, 110 2005-08-27 18:44 /dev/ttyS46
crw-rw----  1 root dialout 4, 111 2005-08-27 18:44 /dev/ttyS47
crw-rw----  1 root dialout 4,  69 2005-08-27 18:44 /dev/ttyS5
crw-rw----  1 root dialout 4,  70 2005-08-27 18:44 /dev/ttyS6
crw-rw----  1 root dialout 4,  71 2005-08-27 18:44 /dev/ttyS7
crw-rw----  1 root dialout 4,  72 2005-08-27 18:44 /dev/ttyS8
crw-rw----  1 root dialout 4,  73 2005-08-27 18:44 /dev/ttyS9
blackcrow@cassandra:~$


io lo ho scritto cosi come è ma ancora quando do kppp da consoll mi da
bash: /usr/bin/kppp: Permission denied