Acest tutorial prezinta cum se pot genera graficele pentru trafic pe sistem FreeBSD folosing MRTG si SNMPD
Vom instala pachetele necesare folosind FreeBSD Ports
Instalam colectia de porturi FreeBSD Ports
root@bsdpc[~/work/src] # portsnap fetch && portsnap extract && portsnap fetch update
Instalam SNMPd, p5-SNMP-Util, p5-SNMP_Session, p5-SNMP-Simple din FreeBSD ports
root@bsdpc[~/work/src] # cd /usr/ports/net-mgmt/net-snmp
root@bsdpc[/usr/ports/net-mgmt/net-snmp] # make install clean
root@bsdpc[/usr/ports/net-mgmt/net-snmp] # cd /usr/ports/net-mgmt/p5-SNMP-Util
root@bsdpc[/usr/ports/net-mgmt/p5-SNMP-Util] # make install clean
root@bsdpc[/usr/ports/net-mgmt/p5-SNMP-Util] # cd /usr/ports/net-mgmt/p5-SNMP_Session/
root@bsdpc[/usr/ports/net-mgmt/p5-SNMP_Session] # make install clean
root@bsdpc[/usr/ports/net-mgmt/p5-SNMP_Session] # cd /usr/ports/net-mgmt/p5-SNMP-Simple/
root@bsdpc[/usr/ports/net-mgmt/p5-SNMP-Simple] # make install clean
Instalam MRTG din FreeBSD ports
root@bsdpc[~/work/src] # cd /usr/ports/net-mgmt/mrtg/
root@bsdpc[/usr/ports/net-mgmt/mrtg] # make install clean
Copiati codul de mai jos in /usr/local/share/snmp/snmpd.conf
Code:
syslocation YourCountry
syscontact YourName - you@yourdomain.tld
rwcommunity public 127.0.0.1
rwcommunity public 10.0.0.0/24
In loc de 10.0.0.0/24 treceti IP-ul sau range-ul de ip-uri din reteaua dumneavoastra pentru care doriti sa generati graficele de trafic
Copiati codul de mai jos in /usr/local/etc/mrtg/mrtg.cfg iar in loc de msk0 la MRTG_INT_DESCR=”msk0″ treceti identificatorul de la placa de retea a systemului dumneavoastra.
Code:
LoadMIBs: /usr/local/share/snmp/mibs/UCD-SNMP-MIB.txt
WorkDir: /usr/local/apache2/htdocs/stats
Options[_]: growright, bits, nopercent, nobanner, noinfo, pngdate
PNGTitle[_]: host.domain.tld
Background[_]: #FFFFFF
Timezone[_]: Europe/Europe
Colours[_]: GREEN#00FF00,BLUE#0066FF,DARK GREEN#33FF33,PINK#FF66FF
XSize[_]: 600
YSize[_]: 180
YTics[_]: 12
Target[speedused]: 1:public@127.0.0.1:
SetEnv[speedused]: MRTG_INT_IP="" MRTG_INT_DESCR="msk0"
MaxBytes[speedused]: 125000000
AbsMax[speedused]: 230000000
Title[speedused]: Traffic Analysis
PageTop[speedused]: Traffic Analysis
Options[speedused]: growright, bits, nopercent, nobanner, noinfo, pngdate
Editati /etc/rc.conf si adaugati snmpd_enable= “YES”, apoi pornim serviciul SNMPd
root@bsdpc[~/work/src] # /usr/local/etc/rc.d/snmpd start
Creem directorul unde se vor salva graficele MRTG
root@bsdpc[~/work/src] # mkdir /usr/local/apache2/htdocs/stats
Rulam de 2-3 ori scriptul MRTG pana cand acesta nu va ma da erori sau avertizari, la inceput acestea apar doarece nu gaseste fisierele de loguri si imaginile mai vechi
root@bsdpc[~/work/src] # /usr/local/bin/mrtg /usr/local/etc/mrtg/mrtg.cfg
Editam /etc/crontab si adaugam scriptul MRTG la crontab pentru ca acesta sa ruleze la fiecare 5 minute si sa actualizeze graficele
root@bsdpc[~/work/src] # pico /etc/crontab
La finalul fisierului /etc/crontab adaugam linia:
*/5 * * * * root /usr/local/bin/mrtg /usr/local/etc/mrtg/mrtg.cfg
Job Done! Enjoy!
DOWNLOAD snmpd.conf
DOWNLOAD mrtg.cfg