Connettere due pc
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Ecco la situazione
Un desktop con una knoppix (liveCD) e relativa scheda di rete.
Un laptop con woody e relativa scheda di rete.
Conetto i due con un cross-cable.
Voglio trasferire dei files dal laptop su una partizione reiserfs del
desktop.
Sul desktop (knoppix), per configurare la scheda di rete ed abilitare
ntfs eseguo i seguenti passi:
#ifconfig eth0 192.168.0.1 netmask 255.255.255.0
#echo /mnt/hda2 *(rw) > /etc/exports
#exportfs
#/etc/init.d/networking restart
#/etc/init.d/portmap restart
#/etc/init.d/nfs-common restart
#/etc/init.d/nfs-kernel-server restart
In questo modo se faccio un nmap 192.168.0.1 vedo che ho le porte sunrpc
ed nfs aperte. Ok! Su /mnt/hda2 è montato l'hard disk con la partizione
reiserfs.
sul laptop, la scheda di rete è così configurata
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:40:D0:30:14:B8
inet addr:192.168.0.2 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2100 errors:0 dropped:0 overruns:0 frame:0
TX packets:5136 errors:0 dropped:2 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:126534 (123.5 KiB) TX bytes:278812 (272.2 KiB)
Interrupt:10 Base address:0xe400
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:5998 errors:0 dropped:0 overruns:0 frame:0
TX packets:5998 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:243476 (237.7 KiB) TX bytes:243476 (237.7 KiB)
se dal laptop provo a montare il supporto remoto ottengo il seguente errore:
# mount -t nfs 192.168.0.1:/mnt/hda2 /mnt/baggins/
mount: RPC: Program not registered
Sul syslog del laptop, continuo ad avere i seguenti messaggi
Apr 24 12:49:27 rippingland kernel: eth0: Media Link Off
Apr 24 12:49:37 rippingland kernel: eth0: Media Link On 100mbps full-duplex
Apr 24 12:49:38 rippingland kernel: eth0: Media Link Off
Apr 24 12:49:48 rippingland kernel: eth0: Media Link On 100mbps full-duplex
Apr 24 12:49:49 rippingland kernel: eth0: Media Link Off
Apr 24 12:49:59 rippingland kernel: eth0: Media Link On 100mbps full-duplex
Apr 24 12:50:00 rippingland kernel: eth0: Media Link Off
Apr 24 12:50:10 rippingland kernel: eth0: Media Link On 100mbps full-duplex
Apr 24 12:50:11 rippingland kernel: eth0: Media Link Off
E mentre provo a montare il supporto remoto tcpdump mi dice
# tcpdump
tcpdump: listening on eth0
12:43:53.725766 arp who-has 192.168.0.1 tell rippingland.bagginslab.it
12:43:55.192053 arp who-has 192.168.0.1 tell rippingland.bagginslab.it
12:43:56.723268 arp who-has 192.168.0.1 tell rippingland.bagginslab.it
12:43:56.723293 rippingland.bagginslab.it.61104 > 192.168.0.1.mysql: S
3611219597:3611219597(0) win 2048
12:43:56.723311 rippingland.bagginslab.it.61104 > 192.168.0.1.964: S
3611219597:3611219597(0) win 2048
...
12:43:56.723537 192.168.0.1.mysql > rippingland.bagginslab.it.61104: R
0:0(0) ack 3611219598 win 0 (DF)
12:43:56.723557 192.168.0.1.964 > rippingland.bagginslab.it.61104: R
0:0(0) ack 3611219598 win 0 (DF)
12:43:56.723590 192.168.0.1.1440 > rippingland.bagginslab.it.61104: R
0:0(0) ack 3611219598 win 0 (DF)
12:43:56.723605 192.168.0.1.5901 > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
12:43:56.723621 192.168.0.1.553 > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
...
12:43:56.723930 192.168.0.1.127 > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
12:43:56.723989 rippingland.bagginslab.it.61102 > 192.168.0.1.1723: S
540659472:540659472(0) win 2048
12:43:56.723984 192.168.0.1.752 > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
12:43:56.724043 rippingland.bagginslab.it.61102 > 192.168.0.1.528: S
540659472:540659472(0) win 2048
12:43:56.724039 192.168.0.1.1723 > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
12:43:56.724061 rippingland.bagginslab.it.61102 > 192.168.0.1.codasrv: S
540659472:540659472(0) win 2048
12:43:56.724077 rippingland.bagginslab.it.61102 > 192.168.0.1.272: S
540659472:540659472(0) win 2048
...
12:43:56.725085 rippingland.bagginslab.it.61104 > 192.168.0.1.752: S
3611219597:3611219597(0) win 2048
12:43:56.725104 rippingland.bagginslab.it.61104 > 192.168.0.1.1723: S
3611219597:3611219597(0) win 2048
12:43:56.725121 rippingland.bagginslab.it.61104 > 192.168.0.1.528: S
3611219597:3611219597(0) win 2048
12:43:56.725140 rippingland.bagginslab.it.61104 > 192.168.0.1.codasrv: S
3611219597:3611219597(0) win 2048
12:43:56.725157 rippingland.bagginslab.it.61104 > 192.168.0.1.272: S
3611219597:3611219597(0) win 2048
12:43:56.725693 rippingland.bagginslab.it.61102 > 192.168.0.1.26: S
540659472:540659472(0) win 2048
12:43:56.725933 rippingland.bagginslab.it.61102 > 192.168.0.1.32778: S
540659472:540659472(0) win 2048
...
12:43:56.728152 rippingland.bagginslab.it.61102 > 192.168.0.1.2022: S
540659472:540659472(0) win 2048
12:43:56.728169 rippingland.bagginslab.it.61103 > 192.168.0.1.647: S
1089426187:1089426187(0) win 2048
12:43:56.728189 rippingland.bagginslab.it.61103 > 192.168.0.1.afs3-bos:
S 1089426187:1089426187(0) win 2048
12:43:56.728184 192.168.0.1.at-rtmp > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
12:43:56.728203 192.168.0.1.2022 > rippingland.bagginslab.it.61102: R
0:0(0) ack 540659473 win 0 (DF)
12:43:56.728218 192.168.0.1.647 > rippingland.bagginslab.it.61103: R
0:0(0) ack 1089426188 win 0 (DF)
12:43:56.728242 rippingland.bagginslab.it.61103 > 192.168.0.1.64: S
1089426187:1089426187(0) win 2048
12:43:56.728238 192.168.0.1.afs3-bos > rippingland.bagginslab.it.61103:
R 0:0(0) ack 1089426188 win 0 (DF)
12:43:56.728259 rippingland.bagginslab.it.61103 > 192.168.0.1.888: S
1089426187:1089426187(0) win 2048
12:43:56.728277 rippingland.bagginslab.it.61103 > 192.168.0.1.1482: S
1089426187:1089426187(0) win 2048
...
12:43:56.729840 rippingland.bagginslab.it.61102 > 192.168.0.1.msp: S
540659472:540659472(0) win 2048
12:43:56.730619 192.168.0.1.sunrpc > rippingland.bagginslab.it.1014:
udp 28 (DF)
12:43:56.731162 rippingland.bagginslab.it.1015 > 192.168.0.1.sunrpc:
udp 56 (DF)
12:43:56.732315 192.168.0.1.sunrpc > rippingland.bagginslab.it.1015:
udp 28 (DF)
154 packets received by filter
0 packets dropped by kernel
Ciao a tutti e scusate il messaggio che ho cercato di accorciare il più
possibile.
D.
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