MRTG(Multi Router Traffic Grapher)
MRTG+ POSTECH Network Traffic Monitoring System
MRTG ¶õ?
- SNMP agent°¡ manager¿¡°Ô º¸³»´Â ÀڷḦ ±×·¡ÇÈÀ¸·Î º¸¿©ÁÖ´Â tool
- Network-link¿¡¼ÀÇ traffic ºÎÇϸ¦ °¨½ÃÇÏ´Â tool
- GIF image¸¦ Æ÷ÇÔÇÏ¿© ½ÇÁ¦ traffic·®À» »ý»ýÇÏ°Ô º¸¿©ÁÙ ¼ö ÀÖ´Â HTML¹®¼¸¦ ¸¸µé¾î WEB»ó¿¡¼ º¼ ¼ö ÀÖ´Ù.
- Perl&C ¸¦ ±âº»À¸·Î ÇÑ´Ù.
- ¼³Á¤¼º°ú È®À强ÀÌ ¿ì¼ö
- ¿¡·¯ ÆÐŶ¼ö, ½Ã½ºÅÛ ·Îµå »óȲ, ¸ðµ© »óȲ µîÀÇ ¾î¶² SNMPº¯¼öµç ½±°Ô ¸ð´ÏÅÍ ÇÒ ¼ö ÀÖ´Ù.
System ¿ä±¸»çÇ×
- ´ëºÎºÐÀÇ UNIX platform & Windows NT
- GD library, Perl 5.003 ¶Ç´Â ±× ÀÌÈÄ ¹öÀü
- Web browser (Netscape, MS Internet Explorer, etc)
MRTGÀÇ Áß¿ä»çÇ×
- MRTG logfileÀº ÇÏµå µð½ºÅ©ÀÇ Å©±â¸¦ ¸¹ÀÌ Â÷Áö ¾Ê°Ô ÇϱâÀ§ÇØ ÅëÇÕ(consolidation)¾Ë°í¸®µëÀ» »ç¿ë
- °¢ ÀÎÅÍÆäÀ̽º¿¡ ´ëÇØ Á¤º¸¸¦ 4´Ü°è·Î ÁöÁ¤ ÇÒ ¼ö Àִµ¥, ÃÖ±Ù 33½Ã°£, ÁÖ, ¿ù, ³â °£ÀÇ Á¤º¸¸¦ º¸¿© ÁØ´Ù.
- Semi-automatic configuration µµ±¸ÀÌ´Ù.
MRTGÀÇ Æ¯Â¡µé
- SNMP¸¦ ÀÌ¿ë
- ±âº»ÀûÀÎ system°ú interface¿¡ ´ëÇÑ Á¤º¸¸¦ ÀÌ¿ëÇÑ´Ù.
- sysDescr, sysContact, sysLocation ...
- ifSpeed, ifType, ifInOctets, ifOutOctets ...
- ´Ù¾çÇÑ SNMP variableÀ» ¼±Åà ÀÌ¿ëÇÒ ¼ö ÀÖ´Ù.
- CFG file
- cfgmaker¸¦ »ç¿ëÇÏ¿© ½±°Ô configuration fileÀ» ±¸¼º
ex) cfgmaker public@141.223.7.1 > test.cfg
- ½¬¿î HTML¹®¼ Çü½ÄÀ¸·Î µÇ¾îÀÖ¾î °ü¸®°¡ ½±´Ù.
- Log file
- Å©±â°¡ ¹«ÇÑÁ¤ Ä¿ÁöÁö ¾Ê´Â´Ù.
- Log ¿µ¿ª : 1200 item = 75MB
Install Guide
Click Here
MRTGÀÇ »ç¿ë
- MonitoringÀ» ÇÏ°íÀÚ ÇÏ´Â Router¿¡ ´ëÇÑ config fileÀ» »ý¼ºÇÑ´Ù.
- Config fileÀ» ÄÄÆÄÀÏ Çϸé log file, old file, gif file, html fileÀÌ »ý¼º µÈ´Ù.
- Home page¸¦ ±¸ÃàÇÑ ÈÄ html fileÀ» link½ÃŲ´Ù.
MRTG »ç¿ë ¿¹
- Config fileÀ» ±¸¼ºÇÑ´Ù.
cfgmaker public@210.123.104.21 > mrtg.cfg
- mrtg.cfg file¿¡ WorkDir À» Ãß°¡ÇÑ´Ù.
- ÄÄÆÄÀÏ ÇÑ´Ù.
./mrtg mrtg.cfg
- WorkDir·Î À̵¿Çؼ ¸ðµç gif fileÀ» Áö¿î´Ù.
- ´Ù½Ã ÄÄÆÄÀÏ ÇÑ´Ù.
- step 4
- ´Ù½Ã ÄÄÆÄÀÏ
- Home page ±¸Ãà
- crontab¿¡ mrtg ÀÛ¾÷À» µî·ÏÇÔÀ¸·Î½á ÀÏÁ¤ ½Ã°£¸¶´Ù ÀÚµ¿ ¼öÇàÇÏ°Ô ÇÑ´Ù.
0,10,20,30,40,50 * * * * /mrtg-dir/mrtg /Workdir