Linux kernel ¹ØÓÚkeyboard²¿·Ö
Linux kernel ¹ØÓÚkeyboard²¿·Ö
keyboard.c ÓÃÓÚ´¦ÀíºÍ¼üÅÌÏà¹ØµÄinput_handler¡£ÆäÖаüÀ¨ºóÐøµÄ¼üÂëת»»ºÍÊä³ö
atkbd.c ³£ÓõļüÅ̲¼¾Ö£¬ÓÃÓÚ»ñµÃɨÃèÂ룬²¢½«Æä·¢Ë͵½input_handler Á´±íÖÐ
struct input_handler kbd_handler; ¼´Îªinput_handler Á´±íÖеÄÒ»¸öhandler
Òªhook¼üÅÌ»òÕ߯äËûinput²ãϵÄÉ豸ÐÅÏ¢£¬¾Í¿ÉÒÔ×Ô¼º´´½¨Ò»¸öhandler£¬²¢Ê¹ÓÃinput_register_handler ½«Æä×¢²áµ½input_handler Á´±íÖУ¬ÕâÑùÔÚʹÓÃinput_event·¢ËÍeventʱ£¬¾Í¿ÉÒÔÔÚinput_handlerÖв¶»ñÏà¹ØÊ¼þ²¢´¦Àí
Ïà¹ØÎĵµ£º
Óû§ÏµÍ³Ïà¹ØÃüÁî
Óû§Çл»
Óû§Çл»£º su [Ñ¡Ïî] [ʹÓÃÕß]
Óû§¹ÜÀí
Ôö¼ÓÓû§Õ˺Å: useradd [Ñ¡Ïî] Óû§Ãû
ÉèÖÃÓû§Õ˺ÅÊôÐÔ£º usermod [Ñ¡Ïî] ÊôÐÔÖµ
ɾ³ý¶ÔÓ¦Óû§Õ˺ţº userdel [Ñ¡Ïî] Óû§Ãû
Ôö¼Ó×éÕ˺ţº ......
linuxÐÞ¸Ässh¶Ë¿Ú22
vi /etc/ssh/ssh_config
vi /etc/ssh/sshd_config
È»ºóÐÞ¸ÄΪport 8888
ÒÔrootÉí·Ýservice sshd restart (redhat as3)
ʹÓÃputty,¶Ë¿Ú8888
LinuxÏÂSSHĬÈϵĶ˿ÚÊÇ22,ΪÁ˰²È«¿¼ÂÇ£¬ÏÖÐÞ¸ÄSSHµÄ¶Ë¿ÚΪ1433,Ð޸ķ½·¨ÈçÏ £º
/usr/sbin/sshd -p 1433
ΪÔöÇ¿°²È«
ÏÈÔö¼ÓÒ»¸öÆÕͨȨÏÞµÄÓû§£º ......
linuxµÄechoÃüÁî, ÔÚshell±à³ÌÖм«Îª³£ÓÃ, ÔÚÖÕ¶ËÏ´òÓ¡±äÁ¿valueµÄʱºòÒ²Êdz£³£Óõ½µÄ, Òò´ËÓбØÒªÁ˽âÏÂechoµÄÓ÷¨
echoÃüÁîµÄ¹¦ÄÜÊÇÔÚÏÔʾÆ÷ÉÏÏÔʾһ¶ÎÎÄ×Ö£¬Ò»°ãÆðµ½Ò»¸öÌáʾµÄ×÷Óá£
¸ÃÃüÁîµÄÒ»°ã¸ñʽΪ£º echo [ -n ] ×Ö·û´®
ÆäÖÐÑ¡Ïîn±íʾÊä³öÎÄ×Öºó²»»»ÐУ»×Ö·û´®ÄܼÓÒýºÅ£¬Ò²Äܲ»¼ÓÒýºÅ¡£ÓÃechoÃüÁîÊä³ö¼ÓÒýº ......
1.fork
´´½¨Ò»¸öнø³Ì
2.clone
°´Ö¸¶¨Ìõ¼þ´´½¨×Ó½ø³Ì
3.execve
ÔËÐпÉÖ´ÐÐÎļþ
4.exit   ......