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 ×îÐÂÎÄÕ : linux

linuxϵÄÖ÷ÒªÎļþ


linuxϵÄÖ÷ÒªÎļþ
/boot/grub/grub.conf    GRUB configuration file
/boot/module-info-*    Module information for the Linux kernel
/boot/System.map-*    Map of the Linux kernel
/boot/vmlinuz-*    Linux kernel
/etc/aliases    Mail aliases
/etc/at.deny    User IDs of users forbidden to use the at command
/etc/auto.master    Configuration file for the autofs daemon, which
automatically mounts
filesystems
/etc/auto.misc    Automounter map file
/etc/bashrc                    Systemwide functions and aliases for the
bash shell
/etc/cron.daily/*    Daily cron jobs
/etc/cron.hourly/*    Hourly cron jobs
/etc/cron.monthly/*    Monthly cron jobs
/etc/cron.weekly/*    Weekly cron jobs
/etc/crontab    System cron file
/etc/cups/*    Printer configuration files
/etc/defa ......

ÔÚLinuxϲ鿴¶Ë¿ÚµÄʹÓÃÇé¿ö¼°Æô¶¯

Netstat -tln ÃüÁîÊÇÓÃÀ´²é¿´linuxµÄ¶Ë¿ÚʹÓÃÇé¿ö
/etc/init.d/vsftp start ÊÇÓÃÀ´Æô¶¯ftp¶Ë¿Ú~£¡
¿´Îļþ/etc/services
netstat
²é¿´ÒѾ­Á¬½ÓµÄ·þÎñ¶Ë¿Ú£¨ESTABLISHED£©
netstat -a
²é¿´ËùÓеķþÎñ¶Ë¿Ú£¨LISTEN£¬ESTABLISHED£©
sudo netstat -ap
²é¿´ËùÓеķþÎñ¶Ë¿Ú²¢ÏÔʾ¶ÔÓ¦µÄ·þÎñ³ÌÐòÃû
nmap £¼É¨ÃèÀàÐÍ£¾£¼É¨Ãè²ÎÊý£¾
ÀýÈ磺
nmap localhost
nmap -p 1024-65535 localhost
nmap -PT 192.168.1.127-245
µ±ÎÒÃÇʹÓá¡netstat -apn¡¡²é¿´ÍøÂçÁ¬½ÓµÄʱºò£¬»á·¢ÏֺܶàÀàËÆÏÂÃæµÄÄÚÈÝ£º
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 52 218.104.81.152£º7710 211.100.39.250£º29488 ESTABLISHED 6111/1
ÏÔʾÕą̂·þÎñÆ÷¿ª·ÅÁË7710¶Ë¿Ú£¬ÄÇôÕâ¸ö¶Ë¿ÚÊôÓÚÄĸö³ÌÐòÄØ£¿ÎÒÃÇ¿ÉÒÔʹÓá¡lsof -i £º7710¡¡ÃüÁîÀ´²éѯ£º
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
sshd 1990 root 3u IPv4 4836 TCP *£º7710 £¨LISTEN£©
ÕâÑù£¬ÎÒÃǾÍÖªµÀÁË7710¶Ë¿ÚÊÇÊôÓÚsshd³ÌÐòµÄ¡£
±¾Îijö´¦£ºhttp://www.bitscn.com/os/linux/200803/131774.html ......

linux shell ¿ØÖƽű¾Ö´ÐдÎÊý

ÏÂÃæÊǰ³Ð´µÄ²âÊԽű¾£¬ÎªÁËÄÜÔËÐжà´Î²âÊÔ³ÌÐòÐÔÄÜ£¬Ïë¿ØÖÆÔËÐиöÊý£¬Í¨¹ýlockfile ºÍ grepÅäºÏ½øÐÐÏÞÖÆ¡£
#!/bin/bash
. /etc/profile
project=simnin
export CLASSPATH=.:/usr/$project:$CLASSPATH
for jarfile in /usr/$project/lib/*.jar ; do
if ! echo $CLASSPATH | grep $jarfile > /dev/null
then
  export CLASSPATH=$CLASSPATH:$jarfile
fi
done
#echo $#
#echo $*
#echo $0 $1 $2 $3
#run once when lock file
lckfile="/tmp/.perfomanceTest.lck"
lockfile -1 -r 60 $lckfile
log=/tmp/perftest.log
echo >> $log
lmt=1
if [ "`date +%H`" -lt 8 -o "`date +%H`" -gt 18 ]; then
  lmt=10
fi
prog="com.lj.PerformanceTest"
ps -ef | grep $prog | grep "grep $prog" -v >>$log
cnt=`ps -ef | grep $prog | grep "grep $prog" -v -c `
if [ "$cnt" -gt "$lmt" ]; then
  rm -f $lckfile
  echo "exit 1 when $cnt > $lmt ." >>$log
  exit 1;
fi
echo "$$ start at `date`& ......

linuxÄں˱àÒë¶þ

1.Äں˱àÒë±ØÐëÔÚroot»·¾³Ï£¬¶øUbuntu×°ºóûÓÐrootÓû§£¬ËùÒÔÉèÖÃrootÃÜÂë
 sudo passwd root
2.su»Ø³µ£¬ÊäÈëÃÜÂë¾ÍÊÇÒÔrootÉí·ÝÁË£¬
3.ÏÂÔØlinuxÄں˲¢½«Æä×ªÒÆµ½/usr/srcÎļþ¼Ð
cp Îļþ /usr/src
4.tar -jxvf linux-2.6.29.4.tar.bz2
  ......

LinuxÄÚºËÄ£¿é±à³Ì

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Ä£¿é£¨module£©ÊÇÔÚÄں˿ռäÔËÐеijÌÐò£¬Êµ¼ÊÉÏÊÇÒ»ÖÖÄ¿±ê¶ÔÏóÎļþ£¬Ã»ÓÐÁ´½Ó£¬²»ÄÜ
¶ÀÁ¢ÔËÐУ¬µ«ÊÇ¿ÉÒÔ×°ÔØµ½ÏµÍ³ÖÐ×÷ΪÄں˵ÄÒ»²¿·ÖÔËÐУ¬´Ó¶ø¿ÉÒÔ¶¯Ì¬À©³äÄں˵ŦÄÜ¡£Ä£¿é×îÖ÷ÒªµÄÓô¦¾ÍÊÇÓÃÀ´ÊµÏÖÉ豸Çý¶¯³ÌÐò¡£
ʹÓÃÄ£¿éµÄÓŵ㣺
1,½«À´ÐÞ¸ÄÄÚºËʱ£¬²»±ØÈ«²¿ÖØÐ±àÒëÕû¸öÄںˣ¬¿É½ÚÊ¡²»ÉÙʱ¼ä
2,ϵͳÖÐÈç¹ûÐèҪʹÓÃÐÂÄ£¿é£¬²»±ØÖØÐ±àÒë
Äںˣ¬Ö»Òª²åÈëÏàÓ¦µÄÄ£¿é¼´¿É
Ä£¿éµÄʹÓ÷½Ê½£º£¨modules-1.3.57.tar.gz£©
ÃüÁî ¹¦ÄÜ
±¸×¢
modprobe symbolic link to modprobe
depmod
make module dependency file£¬ÒÔ¸æËß½«À´µÄ insmod ҪȥÄÄ×¥ modules À´²å¡£ Õâ¸ö
dependency file ¾ÍÔÚ/lib/modules/[ÄúµÄkernel°æ±¾]/modules.dep
insmod °Ñij¸ö module ²åÈë kernel ÖÐ
rmmod °Ñij¸öûÔÚÓÃµÄ module °Î³ö kernel
symbolic link to insmod
lsmod °ÑÏÖÔÚ kernel ÖвåÈëµÄ modules ÁгöÀ´a shell
script in 1.3.69f
ksyms symbolic link to insmod
kerneld Ò»¸ö
daemon£¬¿É¸ºÔð×Ô¶¯ºô½Ð insmod ²åÈë module£¬ÊÇÒ»¸öºÜ·½±ãµÄ daemon¡£ËüҲͬʱ²é¿´£¬Èôij module
²åÈëáᵫº ......

linuxÏÂÔØ×ÖÌåµÄ°²×°(³¬¼¶¼ò½à)

1£º´ÓÍøÉÏËÑË÷Á˺ܶ࣬¶¼ÊÇ˵µÄºÜ¸´ÔÓ£¬»¹Òª¸üлº´æ£¬ÕâÀï¸ø³öÒ»¸ö×î¼òµ¥µÄ°ì·¨¡£
2£º¶Ôµ±ÃæµÄÓû§Ä¿Â¼ µØÖ·Îª ~/ ÏÂÃæ½¨Á¢.fontsÎļþ¼Ð£¬Ê¹ÓÃÃüÁî mkdir ~/.fonts
3£º°ÑÄãµÄ×ÖÌå·ÅÈëµ½Õâ¸öÎļþ¼ÐÏ£¬±ÈÈç×ÖÌåÃû×ÖÊÇ yahei.tff ÔòÃüÁîΪ mv yahei.tff ~/.fonts
4£ºÈ»ºó´Ó ϵͳ £­>×ÖÌåÖÐ ¸üÐÂÄã¸Õ²Å°²×°µÄ×ÖÌ壬ÕâÀï¸ø³ö ÑźںÍËÎÌåµÄ×ÖÌå µÄÏÂÔØµØÖ·¡£ ......
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