ãã£ã¨ã試é¨ãçµããã¾ããï½ã æå¾ã®è©¦é¨ãçµãã£ãæ¥ã®æ©ãç±ãåºãã¦å¯è¾¼ã¿ã¾ãããã䏿©çç¡ãããå復ãã¾ããã ã§ããåå¼·ãã¦è¦ãããã¨ãããã®ã¨ãä¸ç·ã«å¿ãã¦ãã¾ã£ãããâ¦(^^;;;ã â¦ã¨ãããã¨ã§ããªãããªãå ¼ãã¦ãä»åã¯è»½ãã®ã話ã§ãã ããã¡ãªã¿ã«ãç§ã®æã§ã¯ã諸è¬ã®äºæ ã«ããã·ã³ã°ã«ã¦ã¼ã¶ã¢ã¼ãã試ããã¨ãã§ããªãã®ã§ãä»åã®è©±ã¯ï¼å²ãããééã£ã¦ãåæã§èªãã§ä¸ãã(^-^;A  *~â))) ï¼¼(-_-#) â¦ããã«èè¶³ã§ããå¿åé²ãã¯ããåå¿é²ãã¨æ¸ãã®ãæ£ããããã§ã(^-^)ã â ã·ã³ã°ã«ã¦ã¼ã¶ã¢ã¼ãã¨ã¯ ã·ã³ã°ã«ã¦ã¼ã¶ã¢ã¼ã (single user mode) ã¨ã¯ãã¡ã³ããã³ã¹ç¨ã¨ãã¦æºåããã¦ãã FreeBSD ã®åä½ç¶æ ã®ï¼ã¤ã§ãFreeBSD èªä½ãåä½ããã®ã«å¿ è¦ãªãæå°éã®æ©è½ã ãã§åãã¦ããç¶æ ãããã¾ãã ã¤ã¡ã¼ã¸çã«ã¯ãWindows
FreeBSDã®TCPã¹ã¿ãã¯ã«å«ã¾ããèå¼±æ§ã«é¢ããæ å ±ãå ¬éããã¾ããã ç¾å¨ãµãã¼ãããã¦ããå ¨ã¦ã®FreeBSDãã¼ã¸ã§ã³ã«å½±é¿ãããããã§ãã The FreeBSD Project Security Advisory: TCP reassembly vulnerability TCPã»ã°ã¡ã³ãã®ä¸¦ã³æ¿ããè¡ãã³ã¼ãã«ä¸å ·åããããã«ã¼ãã«ãã¯ã©ãã·ã¥ããããã¨ã«ããDoSæ»æãå¯è½ã¨ããã¾ãã ã¾ããé常ã«é£æåº¦ãé«ãã¨ãã¤ã¤ããä»åã®èå¼±æ§ãçªãããã®å·¥å¤«ãåãããTCPã»ã°ã¡ã³ããé§ä½¿ãããã¨ã§ãã«ã¼ãã«ãä¿æããã¡ã¢ãªããæ¥ç¶ãããã½ã±ããçµç±ã§åå¾ã§ãã¦ãã¾ãå¯è½æ§ãããã¨ã®ãã¨ã§ããã FreeBSDã®ã»ãã¥ãªãã£ã¢ããã¤ã¶ãªã§ã¯ãã«ã¼ãã«ãã¡ã¢ãªã«ä¿æãããã®ã®ä¾ã¨ãã¦ããã°ã¤ã³èªè¨¼æ å ±ãªã©ãã¨ããã¾ãã FreeBSDã¯å®¶åºç¨PCãå種ãµã¼ãã§å©ç¨ããã ãã§ã¯ãªã
1997å¹´ããå ¬éãã¦ãã¾ãããå 容ã®ä¸é¨ã«ã¤ãã¦å ¬éãã¦ãã¾ãã åæ§ã®å°å ¥ãè¨å®ã宿½ããã¿ã¤ãã³ã°ã§ãã¼ã¸ãå使ãã¦å ¬éãã¦ãã¾ãã
å°ãåã«ãªããã9æåã°ã«å®¶æã§ä¸æµ·ã«è¡ã£ããæã¯ãã¾ã«æµ·å¤ã¸åºããã¦ããããåä¾ãçã¾ãããã³ãããæµè¡ã£ããã§æµ·å¤ãä¹ ã ã å®¶æããã£ãºãã¼ã©ã³ãã«è¡ãããã¨ããã®ã§ãæçµçã«ä¸æµ·ã«ãªã£ãã馿¸¯ã®ãã£ãºãã¼ã©ã³ãã«ã¯è¡ã£ããã¨ããããã 5æ³å ãé£ãã¦è¡ãã«ããã£ã¦ãå¹¾ã¤ãã¡ã¢ãã¦ãããç¹ã«ä¸å½ã¯ã«ã¼ã«ãã³ãã³ãå¤ããã®ã§ãææ°ã®å ¬å¼æ å ±ã確èªãã¦ããã¾ãããã æºåç·¨ ãã¹ãã¼ã ç¾å°SIM ã¹ããã¢ããª æ¯æã å°å³ã¢ã㪠ç¾å°ç·¨ å ¥å½å¯©æ» ç§»å ãã¤ã»ã¹ãã¼ãªã¼ããã«ç·¨ ã©ã¤ãã·ã§ã¢ã§ããã¼ã«ä¹ãä»ããéã®æ³¨æç¹ é¨å± ã¢ã¼ãªã¼ãã¼ã¯ã¨ã³ããªã¼ ãã£ãºãã¼ã©ã³ãç·¨ ã¨ã«ããããã¼ã«ã¼åãã¾ããã ã¬ã¹ãã©ã³ æ°´ ã©ã¤ãã¼ã¹ã¤ãã ãã®ä» 䏿µ·éçåç©å è¨èäº æºåç·¨ ãã¹ãã¼ã èªåã®ãã¹ãã¼ãã¯æéãåãã¦ããã®ã§ãæ°ããç³è«ããããã¤ãã³ãã¼ã«ã¼ãã使ã£ã¦ç³è«ããã°ãæ¸ç±è¬
ãã¾ã¾ã§ã®çµç·¯ã¨ããã£ã¦ãããã¨ãã¾ã¨ã äºã®çºç«¯ namedï¼å®éã«ã¯ djbdns ã® dnscacheï¼ã®èµ·åé åºã®åé¡ã§ããã·ã³èµ·åæã« ntpd ãåå解決ãåºæ¥ãªããããèµ·åã«å¤±æãã¦ããï¼ ntpd ä¸å ·å - twwp apache error ã«ã¤ã㦠- twwp ãã®åé¡ã¯ dnscache ã daemontools (svscan) ã§åããã¦ãããã¨ï¼svscan ã freebsd ã® rcNG (rc.d)ããèµ·åããããã¨ã«ããèµ·åã¿ã¤ãã³ã°ã®åé¡ã§ãããã¨ãããã£ãï¼ãããªããã§ FreeBSD ã® rc.dã¹ã¯ãªãã ã«ã¤ãã¦èª¿ã¹ãï¼ ãªãã¡ã¬ã³ã¹ A practical guide to BSD rc.d scripting http://people.freebsd.org/~yar/rcng/article.html FreeBSD Manual
FreeBSDã§èªä½daemonãå¶å¾¡ãã http://glucose.jp/logs/shn/26 . /etc/rc.subr name="hoge_crawler" rcvar=${name}_enable load_rc_config ${name} : ${hoge_crawler_enable="NO"} : ${hoge_crawler_user="nobody"} command_interpreter=/usr/local/bin/python command=/home/shn/hoge/hoge/runcrawler.py command_args="-d -u ${hoge_crawler_user}" pidfile=/var/hoge/crawler.pid run_rc_command "$1" ãããªæãã§ã¹ã¯ãªãããæ¸ãã¦/usr/local/etc/r
ããããã³ã°ã®ããæ¹ããæ¢ããã¦ãå°å¹´éã¸ï¼ ãã®è¨äºã¯ãªã³ã©ã¤ã³ä¸æ³ä¾µå ¥æ¹æ³ã®èª¬æãããªãã§ããã³ã³ãã¥ã¼ã¿ã»ãã¥ãªãã£ã¼ã¯ãã¢ããã«ãã¤ã®ä½ãæ¹ãã®ããã«ã¬ã·ããèªãã§ããã«çä¼¼ã§ãããããªãã®ãããªããç¹æ®ãªä¸ç観ã¨é·å¹´ã®çµé¨ãã¤ã¾ãªãã¨èº«ã«ã¤ããªãæã§ããããããã³ã³ãã¥ã¼ã¿ã§ç¥æµã¨æã®éçã«ææ¦ãããã¨ããæå³ã®ãããã¯ãã«é¢å¿ãããã²ã¨ã¯ä»¥ä¸ãèªãã§ãã ããã acmã®ãµã¤ãã«ãããªã¿ã¤ãã«ã®è¨äºãåºãã http://queue.acm.org/detail.cfm?id=1814327 ãã®æ°åå¹´éã®éãKnuthæ§ãã¯ããã¨ããã³ã³ãã¥ã¼ã¿ãµã¤ã¨ã³ãã£ã¹ããæé©ã¨ãã¦ããããã¢ã«ã´ãªãºã ã10åã¯ããããæ¹æ³ãããã¨ããã®ã ããããªå¤§èãªãã¨ãè¨ã奴ã¯èª°ã ï¼ ãã®åã¯Poul-Henning KampãJordan Hubbard http://en.wikipedia.
The Bike Shed June 11, 2010 Volume 8, issue 6 PDF You're Doing It Wrong Think you've mastered the art of server performance? Think again. Poul-Henning Kamp Would you believe me if I claimed that an algorithm that has been on the books as "optimal" for 46 years, which has been analyzed in excruciating detail by geniuses like Knuth and taught in all computer science courses in the world, can be opti
ææ°æ´æ°æ¥ã'99.06.06. 3.2-RELEASE ã® TCP Wrappersã ä»ã¾ã§ã¯ tcp_wrappers ãèªåã§ã¤ã³ã¹ãã¼ã«ãã¦ããã®ã§ããã3.2-RELEASE ã§ã¯ OS ã«çµã¿è¾¼ã¾ãã¾ãããpackages ã§ tcp_wrappers ãã¤ã³ã¹ãã¼ã«ãã¦ããæä»£ã¯ /usr/local/libexec/tcpd ãã¤ã³ã¹ãã¼ã«ããã¦ããã®ã§ãããä»åããã¯ããããªããªãã¾ãããsendmailãinetd çã«æåãã ---------------- pochi# ldd /usr/sbin/sendmail /usr/sbin/sendmail: libutil.so.2 => /usr/lib/libutil.so.2 (0x280a6000) libwrap.so.2 => /usr/lib/libwrap.so.2 (0x280ae000) lib
ã¾ããä¸åç®ãæ¸ãã¨ã¯æãããã¾ããã§ããã»ã»ãapache ãã¼ã¹ã§ä½æãããã£ãã·ã¥ç¨ Proxy ãµã¼ãã§ãããè¨å®ã«åé¡ãããç¡äºã«åä½ãã¦ããã®ã¯ç´ä¸ã¶æåã»ã©ã»ã»ããã¾ãã«ãæ ããªãã®ã§ãã¡ãã£ã¨æ¸ãã¦ãããã¨ã«ãã¾ãã ä»åã¯ç¬¬ä¸åç®ã®ãã¿ãåç §ãã å¿ è¦ãããã¾ãã第äºåç®ã®æ²è¼ã¯ãã¡ãã ãã¦ãäºåç®ã«ã¾ã¨ãããã¨ã§ apache ã® Proxy ãµã¼ã㯠mod_cache ãå©ç¨ãã¦ãã£ã¹ã¯ä¸ã«ãã£ãã·ã¥ãã¦è¡ããã¨ãã§ããã®ã ãã©ãéç¨ãã¦ãã°ããããã error.log ã«ä»¥ä¸ã®ã¡ãã»ã¼ã¸ãåºåãããããã«ãªã£ã¦ãããããã大éã«ã»ã»ãorz (é·ãã®ã§æ¹è¡ãã¦ãã¾ã) [warn] (2)No such file or directory: disk_cache: rename tempfile to hdrsfile failed: /data/httpd/
Steven Bourne ãããä½ã£ãã·ã§ã«ã å®è¡ãã¡ã¤ã«å㯠sh ã ããä½è ã«æ¬æãè¾¼ãã¦(?)ä»ã§ã Bourne Shell (ãã¼ã³ã·ã§ã«)ãB-sh (ãã¼ã·ã§ã«) ã¨å¼ã°ããã UNIXã®æ´å²ã¨ã¨ãã«ç»å ´ããä»ãªã使ããã¦ããã¨è¨ãé©ç°ã®ã·ã§ã«ã æ©è½çã«ã¯åå§çã ããã¹ã¦ã®UNIXãã·ã³ä¸ã«å¿ ãåå¨ãã¦ãããå®è£ ã«ãã£ã¦ã¹ã¯ãªããã®è§£éãç°ãªãã¨ãããã¨ã(ãã¾ã)ãªãã1è¡ã®ä¸ã§ for ã«ã¼ããçµãããããã®ã§ã·ã§ã«ã¹ã¯ãªããã¯shç¨ã«æ¸ãã®ãæ®éã ã (cshã§ã¯1è¡ã®ä¸ã§ã«ã¼ããããã¨ã¯ã§ãããè¤æ°è¡ã®ã·ã§ã«ã¹ã¯ãªããã«ããå¿ è¦ããããããã) ãããããã¡ã¤ã«åã®è£å®æ©è½ãç¡ããªã©ã¦ã¼ã¶ã¼ã¤ã³ã¿ã¼ãã§ã¼ã¹ã«é£ãããã®ã§ãæ®æ®µã®ã·ã§ã«ã¨ãã¦ã¯ä½¿ãã«ããã ã¡ãªã¿ã«ãFreeBSDã®/bin/shã¯ãshã¨ãããã¡ã¤ã«åã§shç³»ãªã®ã ãæ©è½æ¡å¼µãããashã¨ããã
ãã©ãã£ãã¯ãã¿ãããªãã¨æã£ã¦ã¾ãMRTGãå ¥ãã¨ãã¾ãããç°¡åã # cd /usr/ports/net-mgmt/net-snmp # make install # cp /usr/local/share/snmp/snmpd.conf.example /usr/local/share/snmp/snmpd.conf # vi /usr/local/share/snmp/snmpd.conf com2sec local localhost PUBLIC com2sec mynetwork 192.168.0.0/24 PUBLIC #group MyRWGroup v1 local #group MyRWGroup v2c local #group MyRWGroup usm local # ps ax | grep snmpd # snmpwalk -v 1 -c PUBLIC 1
FreeBSDéçºãã¼ã ã®Ken Smithæ°ã¯7æ7æ¥(åå®ä¸çæ)ãFreeBSDã®æ¬¡æãã¼ã¸ã§ã³ãFreeBSD 8.0ãã®ãã¼ã¿ç¬¬1çã§ãããFreeBSD 8.0-BETA1ãã®å ¬éãçºè¡¨ãããåæã«8.0æ£å¼ãªãªã¼ã¹ã«åãã¦ã®ã¹ã±ã¸ã¥ã¼ã«ãçºè¡¨ããã¦ããã7æå¾åã«ãªãªã¼ã¹åè£çããããã¦8æ31æ¥ã«ã¯æ£å¼çãå ¬éããäºå®ã¨ãªã£ã¦ããã Smithæ°ã«ããã°ãBETA1ã®æç¹ã§ã¯ããããABI/APIã®ããã«è¥å¹²ã®å¤æ´ã宿½ãã¹ãé¨åãé¤ããã¨ãã«å¤§ããªåé¡ã¨ãªããããªç®æã¯è¦ããããæ¬¡æãªãªã¼ã¹ã«åãã¦ãããé 調ã«éçºãé²ãã§ããããã ãããã©ã¼ãã³ã¹ã«é¢ãã¦ãããã«ããã¯ã«ãªããããªé¨åã¯ã»ã¨ãã©ãªãã¨ããã 忥åºãããã¹ã±ã¸ã¥ã¼ã«ã«ããã°ãæ¥é±7æ13æ¥ã«BETA2ãã7æ20æ¥ã«BETA3ããããã¦ãªãªã¼ã¹åè£çã¨ãã¦RC1ã7æ27æ¥ã«ãRC2ã8æ17æ¥ã«å ¬éãã
è¨ãã¾ã§ããªããã¨ã§ãããã«ã¼ãã«ã®åæ§ç¯ãåºæ¥ããã¨ãåææ¡ä»¶ã§ããã â SYSTEM V å ±æã¡ã¢ãªãå¢ããï¼ ã¡ã¢ãªé£ããªpostgreSQLã§æ¤ç´¢é度ãä¸ãããã¨å ±æã¡ã¢ãªãããããåããã¨ãããã¡ã¢ãªç¡ãã£ããã¨ã¤ããªãä¸è¨ãé£ããæ¶ã§æãæ¿¡ããããã¨ã®ãã人ã¯å¤ãã¨æãã¾ããç§ããã®ãªãã®ä¸äººã§ããåç½®ãé·ãã§ããï¼ æ¹æ³ã¯å®ã«ç°¡åã§ã以ä¸ã®ï¼æãã«ã¼ãã«ã³ã³ãã£ã®ã¥ã¬ã¼ã·ã§ã³ãã¡ã¤ã«ã«æ¸ãã¦ãã«ã¼ãã«ãåæ§ç¯ã options SHMMAXPGS=4096 æ°åã¯ãã¼ã¸æ°ãï¼ãã¼ã¸ã4KBãªã®ã§4096ãã¼ã¸åãã¤ã¾ãæå¤§16MBã®SYSVå ±æã¡ã¢ãªé åã確ä¿ã§ããããã«ãªãã¾ãã é¢ä¿ãªãã§ããã©ç§ãå®¶ã®DBåºå¹¹ãµã¼ãã§ã¯ SHMMAX=20480 ã¨ãã¦ç´80MBã®å ±æã¡ã¢ãªé åã確ä¿ããpostgreSQLãã¬ã·ã¬ã·èµ·åãã¦ã¾ãã â SWAPé åãå¢ãã ã¡ã¢ãªè²§å¼±ãã·
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ã¡ã³ããã³ã¹
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}