ÈçºÎÑ¡Ôñ×îÊʺϵÄLinux°æ±¾
×÷Õߣº51cto
http://www.ccw.com.cn 2009-02-27 11:06:03
µ±Äã¶Ô±ðÈË˵£¬“ÎÒÒªÂòÁ¾³µ¡£”ËûÂíÉϾͻáÎÊÄ㣺“ʲô³µ£¿”¸£ÌØ¡¢·áÌï¡¢»¹ÊDZ¾ÌÊÇË«ÃÅÅܳµ¡¢Ð¡½Î³µ¡¢»¹ÊÇÃæ°ü³µ£¿µ±È»£¬»¹ÓÐÆäËûÀàËÆµÄÎÊÌâ¡£
ͬÑù£¬Èç¹ûÄã˵“ÎÒÏë°²×°Linux£¡”Äã»á±»Îʵ½Í¬ÑùµÄÎÊÌ⣺ÄĸöLinux£¿Ã»ÓÐÒ»¸ö´¿´â¸ÅÄîÉϵēLinux”£¬ÕâºÍûÓÐÒ»¸ö“Æû³µ”ÊÇÒ»»ØÊ¡£ÔÚijЩ·½Ã棬LinuxºÍÆû³µÊÇÏàͬµÄ£ºÃ¿Á¾Æû³µ¶¼ÓÐÒ»¸ö·¢¶¯»ú£¬¶øËùÓеÄLinux°æ±¾¶¼·ÖÏíÏàͬµÄLinuxÄں˺ÍGNU¹¤¾ß¡£
²»¹ý£¬¶þÕßµÄ×î´óÏàËÆ¿ÉÄÜÒ²¾Íµ½ÕâÖ̶ֳÈÁË——ÊÂʵÉÏ£¬Ñ¡ÔñÒ»¸öÕýÈ·µÄLinux°æ±¾±ÈÑ¡ÔñÒ»Á¾Æû³µÒª¸´ÔӵöࡣÏÖÔÚÄã¿ÉÒÔÕÒµ½Êý°ÙÖÖ——Èç¹û²»ÊÇÉÏǧÖֵė—Linux°æ±¾£¬ËüÃÇÈ«¶¼ÔËÐÐÁ¼ºÃ²¢¶¨ÆÚ¸üУ¬ÕâÆäÖÐÓÐÐí¶àÊÇΪÁËÂú×ãÌØ¶¨ÐèÇó¶ø±àÖÆµÄ¡£
ÄÇôÎÒÃǸÃÈçºÎÑ¡Ôñ£¿ÊÂʵÊÇ£¬Äã²»ÐèÒª¶ÔÿһÖÖ¶¼ÏêϸÁ˽⡣×îºÃµÄ·½°¸ÊÇÏȸãÇå³þÄãµÄÐèÇóºÍÐËȤ£¬È»ºó´ÓÈýËĸöºÏÊʵÄLinux°æ±¾ÖÐÌôѡһ¸öÕýÈ·µÄ¡£
ÎÒÃÇû±ØÒª°ÑËùÓеÄLinux°æ±¾ÁгöÀ´£¬ÄÇÑùÒ²Ðí»áÏŵ½Ä㣬ÔÚÕâÀïÎÒÃÇÑ¡³öÁË´óÔ¼20ÖÖ×îÖ÷Á÷×î¸ßЧµÄLinux°æ±¾£¬²¢°´ÕÕ³£¹æµÄÓû§ÐèÇóÎÊÌâ¶ÔËüÃÇ·ÖÁË×é¡£Èç¹ûÄã·¢ÏÖÏÂÃæµÄÎÊÌâÕýÊÇÄãÏëÎʵģ¬ÄÇô£¬Äã¾ÍºÜÓпÉÄÜÔÚºóÃæµÄÃèÊöÖÐÕÒµ½ÄãËùÐèÒªµÄLinux°æ±¾ÁË¡£
“ÎÒÊÇÐÂÊÖ£¬Ö»ÊÇÏ뿪ʼʹÓÃLinux”
¶ÔÓÚ´ÓWindowsת¹ýÀ´µÄÐÂÊÖ¶øÑÔ£¬Õâ¸öÎÊÌâµÄ´ð°¸ÏÔ¶øÒ×¼û£ºUbuntu Linux¼¸ºõÊDz»¶þÑ¡Ôñ£¬·Ç³£ÈÝÒ×ÉÏÊÖ¡£Ê¹ÓÃÕß¿ÉÒÔ½«Óû§ÔÚWindowsÖеÄÉèÖÃ×Ô¶¯ÒÆÖ²¹ýÀ´£¬±ÈÈçËûÃǵÄÎĵµ¡¢¸öÈËÉèÖðüÀ¨InternetÊéÇ©¡£Óû§ÉõÖÁ¿ÉÒÔ³¢ÊÔ¸÷ÖÖÎÞÐè¸Ä±äÓ²¼þ×ÊÔ´µÄ°²×°·½·¨£º±ÈÈçÖ±½Ó´Ó¹âÅÌÆô¶¯¡¢ÓëWindowsͬʱÆô¶¯¡¢»òÖ±½ÓÔÚWindows·ÖÇøÖа²×°Ubuntu¡£UbuntuµÄÉè¼Æ£¬ÒÔ¼°ËüÇ¿´óµÄÉçȺ֧³Ö£¬Ê¹Æä³ÉΪLinux¿ìËÙÈëÃŵÄ×î¼ÑÑ¡Ôñ¡£
¾¡¹ÜÃûÆø×î´ó¡¢Óû§Ò²×î¶à£¬µ«Ubuntu¾ø²»ÊÇΨһ¿ÉÑ¡µÄÐÂÊÖ°æ¡£ÆäËû±ÈÈçLinux Mint£¨UbuntuµÄÑÜÉú°æ±¾£©¡¢PCLinuxOS¡¢SimplyMEPISºÍMandrivaµÈµÈÒ²¶¼×ñÕÕ“ÄÃÀ´¼´ÓÔ£¨"it should just work"£©µÄÀíÄ²ÉÓø÷ÖÖ²»Í¬µÄ·½·¨ÔöÇ¿¿ÉÓÃÐÔ¡¢Êý¾Ý°ü¹ÜÀíÄÜÁ¦ºÍ´ÓWindows½øÐÐÒÆÖ²µÄÄÜÁ¦¡£
ÁíÒ»¸öÓ¦¸ÃÌáµ½µÄÊÇNovellµÄopenSUSE 11.1°æ£¬ÕâÒ²±»¹«ÈÏΪһ¸öÁ¼ºÃµÄLinuxÈëÃŰ汾¡£Ãâ·ÑµÄopenSUSEÀ´Ô´ÓÚNovellµÄÉÌÒµ»¯°æ±¾SUSE Linux£¬¾ßÓдóÁ¿ÏȽø¹¦ÄÜ£¬ÈçÀàËÆWindows VistaÖÐÄÇÖÖÊæÊʵĿɼìË÷Ö
Ïà¹ØÎĵµ£º
ÀýÒ»£º·¢ËÍSignaling Packet£º
Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
¶à¸öCommand¿ÉÒÔÔÚÒ»¸öC-frame£¨control frame£©Öз¢ËÍ¡£
Èç¹ûÒªÖ±½Ó·¢ËÍSignaling Command.ÐèÒª½¨Á¢SOCK_RAWÀàÐ͵ÄL2CAPÁ¬½ÓSocket¡£ÕâÑù²ÅÓлú»á×Ô¼ºÌî³äCommand Code£¬Identi ......
´ÓLinux 2.6ÆðÒýÈëÁËÒ»Ì×еÄÇý¶¯¹ÜÀíºÍ×¢²á»úÖÆ:Platform_deviceºÍPlatform_driver¡£
LinuxÖд󲿷ֵÄÉ豸Çý¶¯£¬¶¼¿ÉÒÔʹÓÃÕâÌ×»úÖÆ, É豸ÓÃPlatform_device±íʾ£¬Çý¶¯ÓÃPlatform_driver½øÐÐ×¢²á¡£
Linux platform driver»úÖÆºÍ´«Í³µÄdevice driver »úÖÆ(ͨ¹ýdriver_registerº¯Êý½øÐÐ×¢²á)Ïà±È£¬Ò»¸öÊ® ......
֮ǰ¿´ÁËһЩ¹ØÓÚlinux²Ù×÷ϵͳµÄ½Ì³Ì£¬±È½Ïϲ»¶½«ÕâЩ¶«Î÷¼Ç¼ÔÚ±¾×ÓÉÏ£¬ÏÖÔÚÔÙ½«ÕâЩ¶«Î÷Ìùµ½²©¿ÍÉÏ£¬ºÍ´ó¼Ò½»Á÷һϡ£ºÜ¶àlinux¸ßÊÖ˵µ½£¬ÏëҪѧºÃlinux±ØÐë¶ÔÆäĿ¼Óиö͸³¹µÄÀí½â¡£ÒÔÏÂÊÇÎÒ×ܽáµÄһЩ¶«Î÷:
ÓëWindowsÒ»Ñù£¬ÔÚLinuxÖÐÒ²ÊÇͨ¹ýĿ¼À´×éÖ¯ÎļþµÄ¡£µ«²»Í¬µÄÊÇ£¬ÔÚLinuxÏÂÖ»ÓÐÒ»¸ö¸ùĿ¼£¬¶ø²»ÏóWin ......
1. Two methods to construct the cluster of servers
(1). DNS based load balancing cluster
DNS load balancing is probably the simplest method to build network
service cluster. It uses Domain Name System to distribute requests to
different servers through resolving the domain name to different IP
......
LinuxÖеȴý¶ÓÁлúÖÆ·ÖÎö
ʲôÊǵȴý¶ÓÁУ¿
ÔÚÈí¼þ¿ª·¢ÖÐÈÎÎñ¾³£ÓÉÓÚijÖÖÌõ¼þûÓеõ½Âú×ã¶ø²»µÃ²»½øÈë˯Ãß״̬£¬È»ºóµÈ´ýÌõ¼þµÃµ½Âú×ãµÄʱºòÔÙ¼ÌÐøÔËÐУ¬½øÈëÔËÐÐ״̬¡£ÕâÖÖÐèÇóÐèÒªµÈ´ý¶ÓÁлúÖÆµÄÖ§³Ö¡£LinuxÖÐÌṩÁ˵ȴý¶ÓÁеĻúÖÆ£¬¸Ã»úÖÆÔÚÄÚºËÖÐÓ¦Óúܹ㷺¡£
......