2.12. syslogd À̺¥Æ® ±â·Ï ¼³Á¤Çϱâ

/var/log/messages ·Î±× ÆÄÀÏÀÌ ¾Æ´Ñ ´Ù¸¥ ÆÄÀÏ¿¡ Ŭ·¯½ºÅͰ¡ À̺¥Æ® ±â·ÏÇϵµ·Ï /etc/syslog.conf ÆÄÀÏÀ» ÆíÁýÇÏ½Ç ¼ö ÀÖ½À´Ï´Ù. Ŭ·¯½ºÅÍ ¸Þ½ÃÁö¸¦ ´Ù¸¥ ÆÄÀÏ¿¡ ±â·ÏÇÔÀ¸·Î¼­ ¹®Á¦¸¦ º¸´Ù ½±°Ô Áø´ÜÇÒ ¼ö ÀÖ½À´Ï´Ù.

±¸¼º¿øµéÀº syslogd µ¥¸óÀ» »ç¿ëÇÏ¿© Ŭ·¯½ºÅÍ¿Í °ü·ÃµÈ À̺¥Æ®¸¦ /etc/syslog.conf ÆÄÀÏ¿¡ ÁöÁ¤µÈ ÆÄÀÏ¿¡ ±â·ÏÇÕ´Ï´Ù. ÀÌ ·Î±× ÆÄÀÏÀº Ŭ·¯½ºÅÍ ³» ¹®Á¦¸¦ Áø´ÜÇϴµ¥ µµ¿òÀ» ÁÝ´Ï´Ù. syslogd µ¥¸óÀÌ ÇöÀç ½ÇÇà ÁßÀÎ ±¸¼º¿ø¿¡¼­ ¿À´Â Ŭ·¯½ºÅÍ ¸Þ½ÃÁö¸¸ ±â·ÏÇϵµ·Ï À̺¥Æ® ±â·ÏÀ» ¼³Á¤ÇϽñ⠹ٶø´Ï´Ù. µû¶ó¼­ Ŭ·¯½ºÅÍ¿¡ ´ëÇÑ Æ÷°ýÀûÀÎ Á¤º¸¸¦ ¾ò±â À§Çؼ­´Â ¸ðµç ±¸¼º¿ø¿¡¼­ ·Î±× ÆÄÀÏÀ» »ìÆìº¸¼Å¾ß ÇÕ´Ï´Ù.

syslogd µ¥¸óÀº ¸ðµç ±âº» ½É°¢¼º ¼öÁØÀÌ 4 (warning)ÀΠŬ·¯½ºÅÍ µ¥¸óÀ¸·ÎºÎÅÍ ¸Þ½ÃÁö¸¦ ±â·ÏÇÕ´Ï´Ù. Ŭ·¯½ºÅÍ µ¥¸ó¿¡ ´ëÇÑ º¸´Ù ÀÚ¼¼ÇÑ Á¤º¸´Â 2.6 ÀýÀ» ÂüÁ¶ÇϽñ⠹ٶø´Ï´Ù.

À̺¥Æ®ÀÇ Á߿伺¿¡ µû¶ó ±â·Ï ½É°¢¼º ¼öÁØÀÌ ´Þ¶óÁý´Ï´Ù. Áß¿äÇÑ À̺¥Æ®´Â Ŭ·¯½ºÅÍ ÀÛ¾÷¿¡ ¿µÇâÀ» ¹ÌÄ¡±â Àü¿¡ Á¶»çÇØº¸¾Æ¾ß ÇÕ´Ï´Ù. Ŭ·¯½ºÅÍ´Â ´ÙÀ½°ú °°Àº ½É°¢¼º ¼öÁØ¿¡ µû¶ó ¸Þ½ÃÁö¸¦ ±â·ÏÇÒ ¼ö ÀÖ½À´Ï´Ù. ´ÙÀ½ ¸ñ·ÏÀº ½É°¢¼º ¼öÁØ¿¡ µû¶ó Á¤·ÄµÇ¾ú½À´Ï´Ù:

·Î±× ÆÄÀÏÀÇ ¿¹Á¦´Â ´ÙÀ½°ú °°½À´Ï´Ù:

Jul 18 20:24:39 clu1 clufence[7397]: <info> STONITH: rps10 at /dev/ttyS0,\
	  port 0 controls clu1 
Jul 18 20:24:39 clu1 clufence[7397]: <info> STONITH: rps10 at /dev/ttyS0,\
	  port 1 controls clu2
Jul 18 20:24:53 clu1 clufence[7397]: Port 0 being turned off.
Jul 18 20:24:53 clu1 clufence[7397]: <notice> STONITH: clu2 has been fenced! 
Jul 18 20:51:03 clu1 clufence[30780]: <info> STONITH: rps10 at/dev/ttyS0,\
	  port 0 controls clu1
Jul 18 20:51:03 clu1 clufence[30780]: <info> STONITH: rps10 at /dev/ttyS0,\
	  port 1 controls clu2
Jul 18 20:51:17 clu1 clufence[30780]: Port 0 being turned on.
Jul 18 20:51:17 clu1 clufence[30780]: <notice> STONITH: clu2 is no longer fenced off. 
     [1]         [2]      [3]               [4]         [5]

·Î±× ÆÄÀÏÀÇ °¢ Ç׸ñ¿¡´Â ´ÙÀ½°ú °°Àº ³»¿ëÀÌ ´ã°Ü ÀÖ½À´Ï´Ù:

Ŭ·¯½ºÅÍ ¼ÒÇÁÆ®¿þ¾î¸¦ ¼³Á¤ÇÑ ÈÄ, /etc/syslog.conf ÆÄÀÏÀ» ÆíÁýÇÏ¿© Ŭ·¯½ºÅͰ¡ ±âº» ·Î±× ÆÄÀÏ /var/log/messagesÀÌ ¾Æ´Ñ ´Ù¸¥ ÆÄÀÏ¿¡ À̺¥Æ®¸¦ ±â·ÏÇϵµ·Ï ¼³Á¤ °¡´ÉÇÕ´Ï´Ù. Ŭ·¯½ºÅÍ ÇÁ·Î±×·¥°ú µ¥¸óÀº local4¶ó´Â syslog tag¸¦ »ç¿ëÇÏ¿© ¸Þ½ÃÁö¸¦ ±â·ÏÇÕ´Ï´Ù. Ŭ·¯½ºÅÍ Àü¿ë ±â·Ï ÆÄÀÏÀ» »ç¿ëÇÔÀ¸·Î¼­ Ŭ·¯½ºÅÍ °¨½Ã¿Í ¹®Á¦ ÇØ°á¿¡ µµ¿òÀÌ µÉ ¼ö ÀÖ½À´Ï´Ù:

Ŭ·¯½ºÅÍ À̺¥Æ®°¡ /var/log/messages ÆÄÀÏ¿¡ ±â·ÏµÇÁö ¾Êµµ·Ï ÇϽ÷Á¸é, /etc/syslog.conf ÆÄÀÏ¿¡¼­ ´ÙÀ½ ÁÙ¿¡ local4.none¸¦ Ãß°¡ÇϽñ⠹ٶø´Ï´Ù:

# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;news.none;authpriv.none;local4.none   /var/log/messages

Ŭ·¯½ºÅÍ ±â·Ï µµ±¸°¡ Ŭ·¯½ºÅÍ À̺¥Æ®¸¦ /var/log/cluster ÆÄÀÏ¿¡ ±â·ÏÇϵµ·Ï ¼³Á¤ÇϽ÷Á¸é, /etc/syslog.conf ÆÄÀÏ¿¡ ´ÙÀ½°ú À¯»çÇÑ ÁÙÀ» Ãß°¡ÇϽñ⠹ٶø´Ï´Ù:

#
# Cluster messages coming in on local4 go to /var/log/cluster
#
local4.*                         /var/log/cluster

¾ÕÀÇ º¯°æ »çÇ×À» Àû¿ëÇϽ÷Á¸é, service syslog restart ¸í·ÉÀ» »ç¿ëÇÏ¿© syslogd¸¦ Àç½ÃÀÛÇÏ¼Å¾ß ÇÕ´Ï´Ù.

Ãß°¡·Î °³º° Ŭ·¯½ºÅÍ µ¥¸ó¸¶´Ù ´Ù¸¥ ½É°¢¼º ¼öÁØÀÇ À̺¥Æ®°¡ ±â·ÏµÇµµ·Ï ¼³Á¤ÇÏ´Â °Íµµ °¡´ÉÇÕ´Ï´Ù; º¸´Ù ÀÚ¼¼ÇÑ Á¤º¸´Â 2.6 Àý°ú syslog.confÀÇ ¸Þ´º¾ó ÆäÀÌÁö¸¦ ÂüÁ¶ÇϽñ⠹ٶø´Ï´Ù.

/etc/logrotate.conf ÆÄÀÏ¿¡ ÁöÁ¤µÈ Áֱ⿡ µû¶ó Ŭ·¯½ºÅÍ ·Î±× ÆÄÀÏÀÌ ÁÖ±âÀûÀ¸·Î ½ÇÇàµÇµµ·Ï ÇϽ÷Á¸é (±âº» ÁÖ±â´Â ÀÏÁÖÀÏ ÀÔ´Ï´Ù), /etc/logrotate.d/syslog ÆÄÀÏÀÇ Ã¹ ÁÙ¿¡ /var/log/cluster¸¦ ÷°¡ÇϽʽÿÀ. ¿¹¸¦ µé¸é:

/var/log/messages /var/log/secure /var/log/maillog /var/log/spooler 
/var/log/boot.log /var/log/cron /var/log/cluster {
   sharedscripts
   postrotate
       /bin/kill -HUP `cat /var/run/syslogd.pid 2> /dev/null` 2> 
       /dev/null || true
   endscript
}