Linux ʱ¼äͬ²½ ntpd
¹ØÓÚLinuxÏÂʱ¼äͬ²½µÄ½â¾ö·½°¸£¬ÆäʵÓм¸ÖÖ¡£Ò»ÊÇʹÓÃrdateÃüÁͬ²½Ê±¼äµ½Ô¶³ÌÖ÷»ú¡£¶þÊÇÔËÓÃntpÈí¼þ°ü¡£
ÒÔÏÂÖ÷Òª½²Ê¹ÓÃntpµÄ·½Ê½À´Íê³Éʱ¼äµÄͬ²½¡£
µ±È»£¬Ê×ÏȵÃÈ·ÈÏntpÈí¼þ°üÊÇ·ñ°²×°£¬Ò»°ãʹÓÃÒÔÏÂÃüÁ¼´ÊDz鿴rpm°üµÄntpÊÇ·ñÒѾװµ½ÏµÍ³ÖУ©£º
rpm -q ntp
ÏÔʾÒÑ°²×°µÄntpµÄ°æ±¾£¬±íʾntp°üÒÑ°²×°¡£ÏñÕâÑù£ºntp-4.2.2p1-5.el5
·ñÔòÌáʾ£ºpackage ntp is not installed
ÖصãÔÚÓÚÈý¸öÎļþµÄÅäÖÃ,·Ö±ðÊÇ£º/etc/ntp.conf /etc/ntp/ntpservers ¼°/etc/ntp/step-tickers
1. /etc/ntp.confµÄÅäÖãº
ÆäʵֻÐè¸Ä¶¯¼«ÉÙµÄλÖã¬ÆäËüµØ·½±£³ÖĬÈÏ£º
ÕÒµ½server²¿·Ö
¼ÓÉÏÒ»ÐУºserver 210.72.145.44 (¹ú¼ÒÊÚʱÖÐÐĵÄIP)
ÔÙ¼ÓÒ»ÐУºserver 218.21.130.42 (cn.pool.ntp.org¶ÔÓ¦IP)
2.½«/etc/ntp/ntpserversÇå¿Õ
3.ÔÚ/etc/ntp/step-tickersÎļþÖУ¬¼ÓÈë֮ǰ¼ÓÈëµ½/etc/ntp.confÖеÄIP£¬±à¼ºóµÄ/etc/ntp/step-tickers
ÎļþµÄÄÚÈÝÈçÏ£º
210.72.145.44
218.21.130.42
µ½´Ë£¬ntpµÄÅäÖÃÍê³É¡£
È»ºó£¬Ö´ÐвÙ×÷£ºservice ntpd restart ,¼´Êǽ«ÊØ»¤½ø³ÌntpdÖØÐÂÆô¶¯£¬ÕâÒ»²½±Ø²»¿ÉÉÙ£¬·ñÔòÒÔÉϵÄÅäÖò»ÄÜÉúЧ¡£
ÕâÒ»·½·¨£¬±¾ÈËʹÓÃÓÐЧ£¬ÏëÔڴ󲿷ֻú×ÓÖж¼¿ÉÐеÃͨ¡£ntpµÄÅäÖÃÖ»Ðè¼òµ¥µÄ¼¸¸ö²½Öè¡£
£¨±¾ÈË»úÆ÷»·¾³Îª£º
Red Hat Enterprise Linux 5
ÄÚºËΪ2.6.18-8
ntp°æ±¾Îªntp-4.2.2p1-5.el5
£©
Ïà¹ØÎĵµ£º
£¨L2CAPÐÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPÐÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌṩÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
Linux®¼¼Êõ¡¢¿ª·¢Ä£ÐͺÍÉçÇø¶¼¶Ô IT Òµ²úÉúÁËÖØÒªµÄÓ°Ï죬ÎÒÃÇÄÜ×öµÄ¾ÍÊÇÕ¾µ½Ò»±ß¿´¿´ÕâЩ£¬ºÜ¸ßÐËÓë developerWorks Ò»Æð¶È¹ýÁ˵ÚÒ»¸ö 10 Äê¡£Linux ÍŶÓÒѾ½«ÕâЩ¶Ô Linux ²úÉúÖØ´óÓ°ÏìµÄÄÚÈÝÕûÀíµ½Ò»Æð¡£
¹ýÈ¥ 10 ÄêÀLinux ·¢ÉúÁËÌ«¶àµÄÊÂÇ飬ºÜÄÑÍêÕûµØÁгö¸Ã²Ù×÷ϵͳµÄÖØҪʼþºÍ¼¼Êõ¸Ä½ø¡£¾¡¹ÜÈç´Ë£¬ÎªÁËÇì× ......
1.1.Á´±ílist_head
include/linux/list.h
ºÜ¾µä£¬Á´±íÔÚÄÚºËÖкܳ£Óã¬ÀýÈç¹ÜÀí½ø³Ì£¬½ø³ÌµÄ¸÷¸ö״̬¶ÓÁж¼ÊÇʹÓÃÕâ¸öË«ÏòÁ´±íʵÏֵġ£ÄÚºËÖеÄÁ´±í¶¨Òå³ÉºÍÊý¾ÝÎ޹صÄÐÎʽ£¬¶ø²»ÊÇͨ³£ÎÒÃÇʹÓõÄÁ´±í¸ñʽ£¬ÀýÈç
typedef struct _list{
Elemtype elem;
&nb ......
µ½ÁËmain.c£¬Æäʵmain.cÖеĴ󲿷ֵÄÄÚÈÝÊǵ÷Óú¯ÊýÀ´ÊµÏÖ³õʼ»¯µÄ¹¤×÷£¬µ«ÊÇ»¹Êǽ«Ëü¿´ÍêÁË¡£ÏÂÃæ¾ÍÊÇ´úÂëÁË¡£Ö÷Òª²Î¿¼µÄÊÇlinuxÄÚºËÍêȫעÊÍ£¬ÔÚһЩ²»Ì«Ã÷°×µÄµØ·½£¬²Î¿¼ÍøÉϵĽéÉÜ¡£·Ï»°ÉÙ˵¡£»¹Óкܳ¤µÄ·°¡¡£Å¬Á¦°¡O(∩_∩)O~¡£
/*
* main.c¹¦ÄÜÃèÊö¡£
*/
//main.c³ÌÐòµÄÖ÷Òª¹¦ÄÜÊÇÀûÓÃsetup.s ......
ÕâÊÇlinuxÖÐÒ»¸ö·Ç³£ÖØÒªÃüÁÇë´ó¼ÒÒ»¶¨ÒªÊìϤ¡£ËüµÄ¹¦ÄÜÊÇΪijһ¸öÎļþÔÚÁíÍâÒ»¸öλÖý¨Á¢Ò»¸öͬ²»µÄÁ´½Ó£¬Õâ¸öÃüÁî×î³£ÓõIJÎÊýÊÇ-s,¾ßÌåÓ÷¨ÊÇ£ºln -s Ô´Îļþ Ä¿±êÎļþ¡£
µ±
ÎÒÃÇÐèÒªÔÚ²»Í¬µÄĿ¼£¬Óõ½ÏàͬµÄÎļþʱ£¬ÎÒÃDz»ÐèÒªÔÚÿһ¸öÐèÒªµÄĿ¼Ï¶¼·ÅÒ»¸ö±ØÐëÏàͬµÄÎļþ£¬ÎÒÃÇÖ»ÒªÔÚij¸ö¹Ì¶¨µÄĿ¼£¬·ÅÉϸÃÎļþ£ ......