Semi OT ucarp avvio macchina e servizi che non ci dovrebbero essere
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Scusatemi di nuovo oggi non e' proprio giornata finisce che prima di
sera tiro un server in testa a qualcuno.
Buongiorno a tutti,
ho un problema che non riesco a capire con ucarp o meglio col suo avvio.
la situazione e' la seguente:
2 macchine che fanno da firewall e proxy
master sangiorgio
slave perseo
indirizzo da da far "ballare" 192.168.2.210
su master ho creato in /etc/init.d il seguente file ucarp
#!/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
OPTIONS="-B -v 10 -p xxxxxxx -a 192.168.2.210 -s 192.168.2.240 -u
/etc/ucarp/ucarp-up.sh -d /etc/ucarp/ucarp-down.sh -P -z"
test -x /usr/sbin/ucarp || exit 0
case "$1" in
start)
if [ ! -x /usr/sbin/ucarp ]; then
echo "ucarp binary missing - not starting"
exit 1
fi
if ( ! pgrep -f /usr/sbin/ucarp )
then
echo -n "Starting ucarp service: ucarp"
start-stop-daemon --start --quiet --exec /usr/sbin/ucarp \
-- $OPTIONS
else
echo "ucarp is running, not starting"
fi
echo "."
;;
stop)
echo -n "Stopping ucarp service: ucarp"
killall ucarp
echo "."
;;
restart|force-reload)
$0 stop
sleep 2
$0 start
;;
*)
echo "Usage: /etc/init.d/bind
{start|stop|restart|force-reload}" >&2
exit 1
;;
esac
exit 0
e i 2 files
/etc/ucarp/ucarp-down.sh
#!bin/sh
exec 2> /dev/null
ifconfig eth1:0 192.168.2.210 down
/etc/init.d/squid stop
echo virtual eth on "`hostname`" down
/etc/ucarp/ucarp-up.sh
exec 2> /dev/null
ifconfig eth1:0 192.168.2.210/24 up
/etc/init.d/squid start
echo virtual eth on "`hostname`" up
identico su perseo a meno dell'opzione -P nel file /etc/init.d/ucarp
essendo perseo lo slave e dell source address che e' 192.168.2.5
quello che non riesco assolutamente a capire e che sfida secondo me ogni
logica e' la seguente cosa:
perseo:/home/guardian# ifconfig
eth0 Link encap:Ethernet HWaddr 00:A0:24:4D:3C:A7
inet addr:xxx.xxx.xxx.xxx Bcast:xxx.xxx.xxx.111
Mask:255.255.255.240
inet6 addr: fe80::2a0:24ff:fe4d:3ca7/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:37 errors:0 dropped:0 overruns:0 frame:0
TX packets:398 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6180 (6.0 KiB) TX bytes:27783 (27.1 KiB)
Interrupt:5 Base address:0xa000
eth1 Link encap:Ethernet HWaddr 00:50:04:F8:B2:6B
inet addr:192.168.2.5 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::250:4ff:fef8:b26b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1654 errors:0 dropped:0 overruns:0 frame:0
TX packets:161 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:146667 (143.2 KiB) TX bytes:77082 (75.2 KiB)
Interrupt:11 Base address:0xc000
- -
-
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eth1:0 Link encap:Ethernet HWaddr 00:50:04:F8:B2:6B
inet addr:192.168.2.210 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:11 Base address:0xc000
- -
-
----------------------------------------------------------------------------------------------------------------------------------
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2022 errors:0 dropped:0 overruns:0 frame:0
TX packets:2022 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:111705 (109.0 KiB) TX bytes:111705 (109.0 KiB)
sangiorgio:/home/guardian# ifconfig
eth0 Link encap:Ethernet HWaddr 00:05:1C:0B:7F:7F
inet addr:xxx.xxxx.xxx.xxx Bcast:xxx.xxx.xxx.xxx
Mask:255.255.255.0
inet6 addr: fe80::205:1cff:fe0b:7f7f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:40685 errors:0 dropped:0 overruns:0 frame:0
TX packets:67320 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3900390 (3.7 MiB) TX bytes:4801070 (4.5 MiB)
Interrupt:9 Base address:0xb000
eth1 Link encap:Ethernet HWaddr 00:05:1C:04:FA:AE
inet addr:192.168.2.240 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::205:1cff:fe04:faae/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:102449 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7613030 (7.2 MiB) TX bytes:918 (918.0 b)
Interrupt:5 Base address:0xa800
- -
-
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eth1:0 Link encap:Ethernet HWaddr 00:05:1C:04:FA:AE
inet addr:192.168.2.210 Bcast:192.168.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:5 Base address:0xa800
- -
-
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lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:560 (560.0 b) TX bytes:560 (560.0 b)
la eth1:0 e' presente _CONTEMPORANEAMENTE_ su ambo le macchine.
e' una settimana che mi ci applico come un matto ma non ne vengo fuori e
ho paura di essere andato in loop col cervello e di non accorgermi di
qualcosa di estremamente evidente che e' poi il nocciolo della questione.
Qualche suggerimento da darmi?
grazie in anticipo
- --
Mario Vittorio Guenzi
E-mail jclark@tiscali.it
Si vis pacem, para bellum
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