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			<pubDate>2007-4-17</pubDate>
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			<pubDate>2007-3-13</pubDate>
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			<title>Íæ×ªUbuntu LinuxÖ®¼ÓÃÜÎÄ¼þÏµÍ³Æª</title>
			<link>http://www.kingmx.com/article.php?id=15143</link>
			<pubDate>2007-3-13</pubDate>
			<description><![CDATA[µ±Ubuntu LinuxÊ¹ÓÃ¼ÓÃÜÎÄ¼þÏµÍ³ºó£¬Êý¾ÝµÄ°²È«ÄÜµÃµ½ºÜºÃµÄ±£»¤¡£ÔÚÕâÖÖÇé¿öÏÂ£¬¼´Ê¹°ÑÎÒÃÇµÄ»úÆ÷ËÍ¸øºÚ¿Í£¬Ö»ÒªËûÃÇÃ»ÓÐÃÜÔ¿£¬ºÚ¿Í¿´µ½µÄÊý¾ÝÖ»»áÊÇÒ»¶ÑÂÒÂë£¬ºÁÎÞÀûÓÃ¼ÛÖµ¿ÉÑÔ¡£
&nbsp;&nbsp;&nbsp; ±¾ÎÄ½«ÏêÏ¸½éÉÜÀûÓÃdm-cryptÀ´´´½¨¼ÓÃÜÎÄ¼þÏµÍ³µÄ·½·¨¡£ÓëÆäËü´´½¨¼ÓÃÜÎÄ¼þÏµÍ³µÄ·½·¨Ïà±È£¬dm-cryptÏµÍ³ÓÐ×ÅÎÞ¿É±ÈÄâµÄÓÅÔ½ÐÔ£ºËüµÄËÙ¶È¸ü¿ì£¬Ò×ÓÃÐÔ¸üÇ¿¡£³ý´ËÖ®Íâ£¬ËüµÄÊÊÓÃÃæÒ²ºÜ¹ã£¬ÄÜ¹»ÔËÐÐÔÚ¸÷ÖÖ¿éÉè±¸ÉÏ£¬¼´Ê¹ÕâÐ©Éè±¸Ê¹ÓÃÁËRAIDºÍ LVMÒ²ºÁÎÞÕÏ°­¡£dm-cryptÏµÍ³Ö®ËùÒÔ¾ßÓÐÕâÐ©ÓÅµã£¬Ö÷ÒªµÃÒæÓÚ¸Ã¼¼ÊõÊÇ½¨Á¢ÔÚ2.6°æ±¾ÄÚºËµÄdevice-mapperÌØÐÔÖ®ÉÏµÄ¡£ device-mapperÊÇÉè¼ÆÓÃÀ´ÎªÔÚÊµ¼ÊµÄ¿éÉè±¸Ö®ÉÏÌí¼ÓÐéÄâ²ãÌá¹©Ò»ÖÖÍ¨ÓÃÁé»îµÄ·½·¨£¬ÒÔ·½±ã¿ª·¢ÈËÔ±ÊµÏÖ¾µÏñ¡¢¿ìÕÕ¡¢¼¶ÁªºÍ¼ÓÃÜµÈ´¦Àí¡£´ËÍâ£¬ dm-cryptÊ¹ÓÃÁËÄÚºËÃÜÂëÓ¦ÓÃ±à³Ì½Ó¿ÚÊµÏÖÁËÍ¸Ã÷µÄ¼ÓÃÜ£¬²¢ÇÒ¼æÈÝcryptloopÏµÍ³¡£
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$ cat /proc/crypto
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name&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : aes
module&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : aes
type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; : cipher
blocksize&nbsp;&nbsp;&nbsp; : 16
min keysize&nbsp; : 16
max keysize&nbsp; : 32

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$ sudo apt-get install dmsetup cryptsetup
Îª¼ì²édmsetupÈí¼þ°üÊÇ·ñÒÑ¾­½¨Á¢ÁËÉè±¸Ó³Ïó³ÌÐò£¬¼üÈëÏÂÁÐÃüÁî£º 




$ ls -l /dev/mapper/control
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$ sudo modprobe dm-crypt
dm-crypt¼ÓÔØºó£¬Ëü»áÓÃevice-mapper×Ô¶¯×¢²á¡£Èç¹ûÔÙ´Î¼ìÑéµÄ»°£¬device-mapperÒÑÄÜÊ¶±ðdm-crypt£¬²¢ÇÒ°Ñcrypt Ìí¼ÓÎª¿ÉÓÃµÄ¶ÔÏó£º 




$ sudo dmsetup targets
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crypt&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; v1.1.0
striped&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; v1.0.2
linear&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; v1.0.1
error&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; v1.0.1

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$ dd if=/dev/zero of=~/secret.img bs=1M count=100
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$ sudo losetup /dev/loop/0 ~/secret.img
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$ sudo cryptsetup -y create myEncryptedFilesystem&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
/dev/DEVICENAME
&nbsp;&nbsp;&nbsp; ÆäÖÐ£¬myEncryptedFilesystem ÊÇÐÂ½¨µÄÂß¼­¾íµÄÃû³Æ¡£²¢ÇÒ×îºóÒ»¸ö²ÎÊý±ØÐëÊÇ½«ÓÃ×÷¼ÓÃÜ¾íµÄ¿éÉè±¸¡£ËùÒÔ£¬Èç¹ûÄãÒªÊ¹ÓÃÇ°Ãæ½¨Á¢µÄ»ØËÍÓ³Ïó×÷ÎªÐéÄâ¿éÉè±¸µÄ»°£¬Ó¦µ±ÔËÐÐÒÔÏÂÃüÁî£º 






$ sudo cryptsetup -y create myEncryptedFilesystem&nbsp; /dev/loop/0
&nbsp;&nbsp;&nbsp; ÎÞÂÛÊÇÊ¹ÓÃÎïÀí¿éÉè±¸»¹ÊÇÐéÄâ¿éÉè±¸£¬³ÌÐò¶¼»áÒªÄãÊäÈëÂß¼­¾íµÄ¿ÚÁî£¬-yµÄ×÷ÓÃÔÚÓÚÒªÄãÊäÈëÁ½´Î¿ÚÁîÒÔÈ·±£ÎÞÎó¡£ÕâÒ»µãºÜÖØÒª£¬ÒòÎªÒ»µ©¿ÚÁîÅª´í£¬Äã¾Í»á°Ñ×Ô¼ºµÄÊý¾ÝËø×¡£¬ÕâÊ±Ë­Ò²°ï²»ÁËÄúÁË£¡
&nbsp;&nbsp; ÎªÁËÈ·ÈÏÂß¼­¾íÊÇ·ñÒÑ¾­½¨Á¢£¬¿ÉÒÔÊ¹ÓÃÏÂÁÐÃüÁî½øÐÐ¼ì²éÒ»ÏÂ£º






$ sudo dmsetup ls
&nbsp;&nbsp;&nbsp; Ö»Òª¸ÃÃüÁîÁÐ³öÁËÂß¼­¾í£¬¾ÍËµÃ÷ÒÑ¾­³É¹¦½¨Á¢ÁËÂß¼­¾í¡£²»¹ý¸ù¾Ý»úÆ÷µÄ²»Í¬£¬Éè±¸ºÅ¿ÉÄÜÓÐËù²»Í¬£º 






myEncryptedFilesystem&nbsp; (221, 0)
&nbsp;&nbsp;&nbsp; device-mapper»á°ÑËüµÄÐéÄâÉè±¸×°ÔØµ½/dev/mapperÏÂÃæ£¬ËùÒÔ£¬ÄãµÄÐéÄâ¿éÉè±¸Ó¦¸ÃÊÇ/dev/mapper/myEncryptedFilesystem £¬¾¡¹ÜÓÃÆðÀ´ËüºÍÆäËü¿éÉè±¸Ã»Ê²Ã´²»Í¬£¬Êµ¼ÊÉÏËüÈ´ÊÇ¾­¹ýÍ¸Ã÷¼ÓÃÜµÄ¡£
&nbsp;&nbsp;&nbsp; ÈçÍ¬ÎïÀíÉè±¸Ò»Ñù£¬ÎÒÃÇÒ²¿ÉÒÔÔÚÐéÄâÉè±¸ÉÏ´´½¨ÎÄ¼þÏµÍ³£º






$ sudo mkfs.ext3 /dev/mapper/myEncryptedFilesystem
&nbsp;&nbsp;&nbsp; ÏÖÔÚÎªÐÂµÄÐéÄâ¿éÉè±¸½¨Á¢Ò»¸ö×°ÔØµã£¬È»ºó½«Æä×°ÔØ¡£ÃüÁîÈçÏÂËùÊ¾£º 






$ sudo mkdir /mnt/myEncryptedFilesystem 
$ sudo mount /dev/mapper/myEncryptedFilesystem&nbsp; /mnt/myEncryptedFilesystem
&nbsp;&nbsp;&nbsp;&nbsp; ÎÒÃÇÄÜ¹»ÀûÓÃÏÂÃæµÄÃüÁî²é¿´Æä×°ÔØºóµÄÇé¿ö£º 






$ df -h /mnt/myEncryptedFilesystem 
Filesystem&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Size&nbsp; Used Avail Use% Mounted on
/dev/mapper/myEncryptedFilesystem&nbsp;&nbsp;&nbsp;&nbsp; 97M&nbsp; 2.1M&nbsp;&nbsp; 90M&nbsp;&nbsp; 2% /mnt/myEncryptedFilesystem


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$ sudo umount /mnt/myEncryptedFilesystem
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umount /mnt/myEncryptedFilesystem 
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cryptsetup create myEncryptedFilesystem&nbsp; /dev/DEVICENAME
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losetup /dev/loop/0 ~/secret.img
cryptsetup create myEncryptedFilesystem&nbsp; /dev/loop/0
mount /dev/mapper/myEncryptedFilesystem&nbsp; /mnt/myEncryptedFilesystem
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session optional&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pam_mount.so


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volume Ian crypt - /dev/sda1 /home/Ian cipher=aes aes-256-ecb /home/Ian.key
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volume Ian crypt - /dev/sda1 /home/Ian cipher=aes - -
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			<link>http://www.kingmx.com/article.php?id=15016</link>
			<pubDate>2007-2-5</pubDate>
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			<title>Ìá¸ßLinux²Ù×÷ÏµÍ³°²È«ÐÔµÄÊ®´óÕÐÊý</title>
			<link>http://www.kingmx.com/article.php?id=14783</link>
			<pubDate>2006-12-16</pubDate>
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			<pubDate>2006-12-15</pubDate>
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[root@FC3-vm opt]#  mke2fs /dev/loop0
mke2fs 1.35 (28-Feb-2004)
max_blocks 262144, rsv_groups = 32, rsv_gdb = 0
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
32 inodes, 256 blocks
12 blocks (4.69%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
32 inodes per group

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 30 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.



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[root@FC3-vm opt]#  mount -o rw,acl /dev/loop0 /mnt
[root@FC3-vm opt]#  cd /mnt
[root@FC3-vm mnt]#  ls
lost+found



&nbsp;&nbsp; ÏÖÔÚÎÒÒÑ¾­µÃµ½ÁËÒ»¸öÐ¡ÐÍµÄÎÄ¼þÏµÍ³¡£¶øÇÒÊÇÖ§³ÖACLµÄ¡£²¢ÇÒ¼´Ê¹³¹µ×Ëð»µÒ²²»»áÓ°ÏìÓ²ÅÌÉÏÆäËûÓÐ¼ÛÖµµÄÊý¾Ý¡£¿ÉÒÔ¿ªÊ¼ÎÒÃÇµÄACLÌåÑéÖ®ÂÃÁË¡£

ÌåÑé1 £­ ACLµÄ»ù±¾²Ù×÷£ºÌí¼ÓºÍÐÞ¸Ä

ÎÒÊ×ÏÈÐÂ½¨Ò»¸öÎÄ¼þ×÷ÎªÊµÊ©ACLµÄ¶ÔÏó£º






[root@FC3-vm mnt]#  touch file1
[root@FC3-vm mnt]#  ls -l file1
-rw-r--r-- 1 root root     7 Dec 11 00:28 file1



È»ºó¿´Ò»ÏÂÕâ¸öÎÄ¼þÈ±Ê¡µÄACL£¬ÕâÊ±Õâ¸öÎÄ¼þ³ýÁËÍ¨³£µÄUGOµÄÈ¨ÏÞÖ®Íâ£¬²¢Ã»ÓÐACL£º






[root@FC3-vm mnt]#  getfacl file1
# file: file1
# owner: root
# group: root
user::rw-
group::r--
other::r-



*×¢Òâ£º¼´Ê¹ÊÇ²»Ö§³ÖACLµÄÇé¿öÏÂ£¬getfaclÈÔÈ»ÄÜ·µ»ØÒ»¸öÕâÑùµÄ½á¹û¡£²»¹ýsetfaclÊÇ²»ÄÜ¹¤×÷µÄ¡£

ÏÂÃæÌí¼Ó¼¸¸öÓÃ»§ºÍ×é£¬Ò»»áÎÒ½«Ê¹ÓÃACL¸³ÓèËûÃÇ²»Í¬µÄÈ¨ÏÞ£º






[root@FC3-vm mnt]#  groupadd testg1
[root@FC3-vm mnt]#  useradd testu1
[root@FC3-vm mnt]#  useradd testu2
[root@FC3-vm mnt]#  usermod -G testg1 testu1



ÏÖÔÚÎÒÃÇ¿´¿´testu1ÄÜ×öÊ²Ã´£º






[root@FC3-vm mnt]# su testu1
[testu1@FC3-vm mnt]$ echo "testu1" &gt;&gt; file1
bash: file1: Permission denied



Ê§°ÜÁË¡£ÒòÎªfile1²¢²»ÔÊÐí³ýÁËrootÒÔÍâµÄÓÃ»§Ð´¡£ÎÒÃÇÏÖÔÚ¾ÍÍ¨¹ýÐÞ¸Äfile1µÄACL¸³Óètestu1×ã¹»µÄÈ¨ÏÞ£º






[root@FC3-vm mnt]# setfacl -m u:testu1:rw file1
[root@FC3-vm mnt]# su testu1
[testu1@FC3-vm mnt]$ echo "testu1" &gt;&gt; file1
[testu1@FC3-vm mnt]$ cat file1
testu1



ÐÞ¸Ä³É¹¦ÁË£¬ÓÃ»§testu1¿ÉÒÔ¶Ôfile1×ö¶ÁÐ´²Ù×÷ÁË¡£ÎÒÃÇÀ´¿´Ò»ÏÂfile1µÄACL£º






[testu1@FC3-vm mnt]$ getfacl file1
# file: file1
# owner: root
# group: root
user::rw-
user:testu1:rw-
group::r--
mask::rw-
other::r-



ÎÒÃÇls¿´Ò»ÏÂ£º






[root@FC3-vm mnt]# ls -l file1
-rw-rw-r--+ 1 root root     7 Dec 11 00:28 file1



&nbsp;&nbsp;&nbsp; ¿ÉÒÔ¿´µ½ÄÇ¸ö"+"ÁËÃ´£¿¾ÍÔÚÍ¨³£ÎÒÃÇ¿´µ½µÄÈ¨ÏÞÎ»µÄÅÔ±ß¡£Õâ¸öËµÃ÷file1ÉèÖÃÁËACL£¬ ½ÓÏÂÀ´ÎÒÃÇÐÞ¸ÄÒ»ÏÂtestu1µÄÈ¨ÏÞ£¬Í¬Ê±¸øtestg1Õâ¸ö×éÒÔ¶ÁµÄÈ¨ÏÞ£º






[root@FC3-vm mnt]# setfacl -m u:testu1:rwx,g:testg1:r file1
[root@FC3-vm mnt]# getfacl file1
# file: file1
# owner: root
# group: root
user::rw-
user:testu1:rwx
group::r--
group:testg1:r--
mask::rwx
other::r-


]]></description>
		</item>
		<item>
			<title>ÈçºÎ¸Ä½øÏµÍ³ÃüÁîÐÐ¹¤¾ß</title>
			<link>http://www.kingmx.com/article.php?id=14738</link>
			<pubDate>2006-12-15</pubDate>
			<description><![CDATA[Èç¹ûÄúºÜÈÝÒ×Ê¹ shell ÌáÊ¾ÐÐ±äµÃÉ«²ÊÑ¤ÀÃÇÒ´øÓÐ¸ü¶àÐÅÏ¢£¬ÎªÊ²Ã´»¹Òª¼á³ÖÓÃ·³ÈËµÄ±ê×¼ÌáÊ¾ÐÐÄØ£¿ÔÚÕâÆª¼¼ÇÉÖÐ£¬Daniel Robbins ½«ËµÃ÷ÈçºÎ»ñµÃ·ûºÏÄúµÄÒâÔ¸µÄ shell ÌáÊ¾ÐÐ£¬²¢»áËµÃ÷ÈçºÎ¶¯Ì¬¸üÐÂ xterm µÄ±êÌâÀ¸¡£
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bash-2.04$



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bash-2.04#



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$ export PS1="&gt; "
&gt;



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$ export PS1="This is my super prompt &gt; "
This is my super prompt &gt;



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$ export PS1="\u@\H &gt; "
drobbins@freebox &gt;



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Ö÷»úµÄÈ«³Æ£¨Èç "mybox.mydomain.com"£©


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Bash °æ±¾£¨°üÀ¨²¹¶¡¼¶±ð£© ?/td&gt;


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"\e[0m"



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export PS1="\w&gt; "



±äÎª£º






export PS1="\e[32;40m\w&gt; "



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export PS1="\e[32;40m\w&gt; \e[0m"



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export PS1="\[\e[32;1m\]\w&gt; \[\e[0m\]"



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export PS1="\[\e[36;1m\]\u@\[\e[32;1m\]\H&gt; \[\e[0m\]"



&nbsp;

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"\e]2;titlebar\a"



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			<title>Ç¶ÈëÊ½Linux ÖÐµÄÓ¦ÓÃÖÐµÄGTK+</title>
			<link>http://www.kingmx.com/article.php?id=14737</link>
			<pubDate>2006-12-15</pubDate>
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			<link>http://www.kingmx.com/article.php?id=14693</link>
			<pubDate>2006-12-12</pubDate>
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			<title>FreeBSD¹âÅÌÔËÐÐ°æµÄÖÆ×÷¹ý³Ì</title>
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			<pubDate>2006-12-12</pubDate>
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			<pubDate>2006-12-12</pubDate>
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		<item>
			<title>ÔÚSUSE Linux ServerÉÏÅäÖÃDB2</title>
			<link>http://www.kingmx.com/article.php?id=14690</link>
			<pubDate>2006-12-12</pubDate>
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			<pubDate>2006-12-4</pubDate>
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