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ssh connect to Linux
1,¼ì²éÍøÂçÁ¬½ÓÊÇ·ñÕý³£,¿´¿´ÄãµÄ»úÆ÷ÊÇ·ñ¿ªÁË22ºÅ¶Ë¿Ú,½ø³ÌÊÇ·ñÔËÐÐÕý³£..
2,¿ÉÒÔÔÚ±¾»úÉÏÓÃSSHÃüÁîµÇ½±¾»ú.
#ssh -l yourloginname xxx.xxx.xxx.xxx
ÆäÖÐyourloginnameΪÄã±¾»ú¿ÉÔ¶³ÌµÇ¼Óû§Ãû,xxx.xxx.xxx.xxxΪÄãµÄ»úÆ÷IP,
Èç¹ûµÇ¼Ìáʾ:
Are you sure you want to continue connecting (yes/no)? yes
²¢ÇҵǼÕý³£,Ôò±íʾÄãµÄ·þÎñÊÇÕý³£¿ªÍ¨µÄ.
3,Èç¹û2ͨ¹ý,¼ì²éHOSTS.DENY µÈÎļþ,ÊÇ·ñ½ûÖ¹ÁËÔ¶³ÌµÇ¼....
¼ì²é  /etc/ssh/sshd_config ÀïµÄ PermitRootLogin ÊÇ·ñ Ϊyes           ÒÔ±ðµÄÕ˺ŵǼ
¼ì²é ÄãµÄ iptables ÉèÖÃ
¼ì²éÄãµÄ /etc/hosts.allow  /etc/hosts.deny
netstat -anpt¼ì²é ssh¶Ë¿ÚÊÇ·ñ´ò¿ª
connection refused.  Ò»°ãÊÇ·À»ðǽ¿ª×ÅÄØ¡£ ±¾»ú·ÃÎÊ¿ÉÒÔ£¬±ðµÄ»ú²»¿ÉÒÔ£¬·À»ðǽ¿ª×Å£¬¹Øµô£¬»òÊÇÉèΪµÍ£¬»òÊDZðµÄʲô
PHPÁ¬½ÓMYSQL´úÂë
<?
$mysql_server_name="localhost";
$mysql_username="root";
$mysql_password="";
$mysql_database="mysql";
$conn=mysql_connect($mysql_server_name,$mysql_username,$mysql_password,$mysql_database);
if($conn)
{
    echo "Á¬½Ó³É¹¦";
}
else
{
    echo "Á¬½Óʧ°Ü";
}
?>
LinuxÏÂÅäÖÃJDKºÍTOMCAT£¬JSPµÄÔËÐл·¾³
1.ÏÂÔØJDK JDKÊÇÓÉwww.sun.com¹«Ë¾ÑÐÖÆµÄ£¬¿ÉÔÚÆäÏÂÏÂÔØ
   linux platform-java(TM) SE Development Kit 6 Update 2
        Á½¸ö°æ±¾ linux RPM in self-extracting file(build 05) jdk-6u2-linux-rpm.bin(61.63MB)
          linux self-extracting file(build 05) jdk-6u2-linux-i586.bin(55.66MB)
   ÔÚÕâ¶ùÎÒÏÂÔØÁ˵ÚÒ»¸ö°æ±¾£¬rpm.bin
2.°²×°jdk-6u2-linux-rpm.bin°ü
   #chmod u+x jdk-6u2-linux-rpm.bin   (ÉèÖÿÉÖ´ÐÐȨÏÞ)
    #./jdk-6u2-linux-rpm.bin           (Ö´ÐУ¬Ò²¿ÉÒÔÖ±½Ó´ò¿ª£¬½âѹ)
    #rpm -ivh jdk-6u2-linux-rpm.rpm    (°²×°£¬°²×°Ä¿Â¼Îª/usr/javaÏ£¬×Ô¶¯Éú³ÉµÄ)
    #cd /usr/java/
    #ln -s j2sdk1.4.2/


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×î½üÔÚÑо¿androidµÄsensor driver£¬Ö÷ÒªÊÇE-compass£¬ÆäÖÐÓõ½ÁËLinux input×Óϵͳ.ÔÚÍøÉÏÒ²¿´Á˺ܶàÕâ·½ÃæµÄ×ÊÁÏ£¬¸Ð¾õ»¹ÊÇÕâÆª·ÖÎöµÄ±È½ÏϸÖÂ͸³¹£¬Òò´Ë×ªÔØÒ»ÏÂÒÔ±ã×Ô¼ºÑ§Ï°£¬Í¬Ê±ºÍ´ó¼Ò·ÖÏí£¡
£¨ÕâÆª²©¿ÍÖ÷ÒªÊÇÒÔ¼üÅÌÇý¶¯ÎªÀýµÄ£¬²»¹ý½²½âµÄÊÇLinux Input Subsystem£¬¿ÉÒÔ×ÐϸµÄÑо¿Ò»Ï£¡£©
¼üÅÌÇý¶¯½«¼ì ......

linux 2.6Ô´´úÂëÇé¾°·ÖÎö±Ê¼ÇÖ®ÄÚ´æ3

¹ØÓÚe820
   e820ÊÇBIOSµÄ£¨int 0x15£©ÖжϹØÁªµÄ¡£ÔÚʹÓôËÖжÏʱ£¬axÖбØÐëÊÇe820(ireg.ax=0xe820;)¡£Í¨¹ý´ËÖжϿÉÒԵõ½ÄÚ´æµÄϵͳ²¼¾Ö¡£Í¨¹ýdoÑ­»·£¬Ã¿´ÎµÃµ½Ò»¶Î¡£
/linux32/arch/x86/include/asm/e820.h
ºêE820_MAPÊÇstruct e820entryÊý¾Ý½á¹¹µÄÖ¸Õ룬´æ·ÅÔÚ²ÎÊý¿éÖÐÎ»ÒÆÎª0x2d0µÄµØ·½¡£
#define E820M ......

Linux ±Ê¼Ç2

1¡£LinuxÁ´½Ó
     LinuxĿ¼ÖÐÿ¸öÃû×ÖÖÁinodeµÄÓ³Éä±»³ÆÎªÁ´½Ó£¬¼´Ä¿Â¼ÖÐÒ»¸öÖ¸ÏòinodeµÄÃû×Ö¡£LinuxµÄÎļþÁ´½Ó·ÖΪӲÁ´½ÓºÍÈíÁ´½Ó¡£
     Ó²Á´½Ó±ØÐëλÓÚͬһ¸öÎļþϵͳ¡£Ê¹ÓÃlink()º¯ÊýʵÏÖ¡£
     ÈíÁ´½Ó¼´·ûºÅÁ´½Ó£¬Ëü²»Ôö¼Ó¶îÍâµÄĿ¼Ï¶øÊÇÒ»ÖÖÌ ......

ÔÚLinuxϰ²×°JDK¼°»·¾³ÉèÖÃ

1. ÏÈ´ÓÍøÉÏÏÂÔØjdk(jdk-1_5_0_02-linux-i586.rpm) £¬ÍƼöSUNµÄ¹Ù·½ÍøÕ¾www.sun.com£¬ÏÂÔØºó·ÅÔÚ/homeĿ¼ÖУ¬µ±È»ÆäËüµØ·½Ò²ÐС£
½øÈ밲װĿ¼
#cd /home
#cp jdk-1_5_0_02-linux-i586.rpm /usr/local
#cd /usr/local
¸øËùÓÐÓû§Ìí¼Ó¿ÉÖ´ÐеÄȨÏÞ
#chmod +x jdk-1_5_0_02-linux-i586.rpm.bin
#./jdk-1_5_0_02-linux ......
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