Potreboval by som rozbehat netflow na monitorovanie a ukladanie sietovej komunikacie, pouzil som navod na tejto stranke je primarne pre centos, ale nic lepsie som nenasiel, obzvlast nic pre ubuntu ktore pouzivam.
http://www.dynamicnetworks.us/netflow/5-configure-flow-tools.htmlPodla odkazu som chcel vytvorit skript: /usr/local/netflow/bin/linkme , ale cesta /usr/local/netflow neexistovala. (nainstaloval som uz netflow-tools).
Takze som vytvoril cesty:
sudo mkdir /usr/local/netflow
sudo mkdir /usr/local/netflow/bin
nasledne som vytvoril v text. editore skript:
sudo nano -w /usr/local/netflow/bin/linkme
a toto som vlozil do neho:
#!/usr/bin/perl
$base = "/var/netflow";
if ($ARGV[0] =~ /.*[\/]*(ft-v05[^\/]*$)/) {
$fileName = $1;
} else {
print "Must specify file\n";
exit 1;
}
unless ( symlink("$base/ft/$fileName","$base/$fileName") ) {
print "Unable to create symbolic link: $base/$fileName\n";
exit 1;
}
urobil som prava pre dany skript aby bol spustatelny:
sudo chmod a+x /usr/local/netflow/bin/linkme
vytvoril som priecinky pre ukladanie dat:
sudo mkdir -p /var/netflow/
sudo mkdir -p /var/netflow/bin
sudo mkdir -p /var/netflow/ft
sudo mkdir -p /var/netflow/rrds
sudo mkdir -p /var/netflow/scoreboard
v tom manuali je tento prikaz na spustenie flow-capture:
sudo /usr/local/netflow/bin/flow-capture -w /var/netflow/ft 0/0/2055 -S5 -V5 -E1G -n 287 -N 0 -R /usr/local/netflow/bin/linkme
ale mne fungoval tento:
sudo flow-capture -w /var/netflow/ft 0/0/2055 -S5 -V5 -E1G -n 287 -N 0 -R /usr/local/netflow/bin/linkme
tcpdump mi ukazoval prebiehajucu komunikaciu:
tcpdump -n udp port 2055
pouzitim
sudo netstat -lnp
mi ukazalo ze flow-capture neni v stave listen:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 4304/mysqld
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 4655/smbd
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 4746/apache2
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 4627/exim4
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 4655/smbd
tcp6 0 0 :::22 :::* LISTEN 4206/sshd
udp 0 0 0.0.0.0:2055 0.0.0.0:* 4928/flow-capture
udp 0 0 192.168.76.4:137 0.0.0.0:* 4653/nmbd
udp 0 0 0.0.0.0:137 0.0.0.0:* 4653/nmbd
udp 0 0 192.168.76.4:138 0.0.0.0:* 4653/nmbd
udp 0 0 0.0.0.0:138 0.0.0.0:* 4653/nmbd
udp 0 0 192.168.76.4:123 0.0.0.0:* 3600/ntpd
udp 0 0 127.0.0.1:123 0.0.0.0:* 3600/ntpd
udp 0 0 0.0.0.0:123 0.0.0.0:* 3600/ntpd
udp6 0 0 fe80::21f:d0ff:fe36:123 :::* 3600/ntpd
udp6 0 0 ::1:123 :::* 3600/ntpd
udp6 0 0 :::123 :::* 3600/ntpd
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node PID/Program name Path
unix 2 [ ACC ] STREAM LISTENING 11312 4304/mysqld /var/run/mysqld/mysqld.sock
unix 2 [ ACC ] STREAM LISTENING 11747 4670/winbindd /tmp/.winbindd/pipe
unix 2 [ ACC ] STREAM LISTENING 11749 4670/winbindd /var/run/samba/winbindd_privileged/pipe
teraz neviem ci to je chyba
kontrola ci sa tvoria tmp:
sudo cd /var/netflow/ft
sudo ls
vysledok:
ft-v05.2009-10-04.105104+0200 ft-v05.2009-10-04.105500+0200 tmp-v05.2009-10-04.110000+0200
subor /etc/init.d/flow-capture uz bol vytvoreny takze ho netrebalo vytvorit.
Instalacia flowscan:
sudo apt-get install flowscan
(nainstalovali sa aj potrebne perl moduly).
V navode je dal cd cf, ale toto je akosi nepouzitelne kedze neviem co je cf. Vedeli by ste poradit ako dalej?