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# Runas alias specification
# User privilege specification
root ALL=(ALL) ALL
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foobar ALL=(ALL) ALL
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[foobar@localhost ~]$ ls /root
ls: /root: ȨÏÞ²»¹»
[foobar@localhost ~]$ sudo ls /root
Password:
anaconda-ks.cfg Desktop install.log install.log.syslog
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foobar localhost= /sbin/ifconfig, /bin/ls
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[foobar@localhost ~]$ sudo head -5 /etc/shadow
Password:
Sorry, user foobar is not allowed to execute '/usr/bin/head -5 /etc/shadow' as root on localhost.localdomain.
[foobar@localhost ~]$ sudo /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:14:85:EC:E9:9B
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foobar linux=(jimmy,rene) /bin/kill
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Defaults:foobar runas_default=rene
DefaultsºóÃæÈç¹ûÓÐðºÅ£¬ÊǶԺóÃæÓû§µÄĬÈÏ£¬Èç¹ûûÓУ¬ÔòÊǶÔËùÓÐÓû§µÄĬÈÏ¡£¾ÍÏñÅäÖÃÎļþÖÐ×Ô´øµÄÒ»ÐУº
Defaults env_reset
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foobar localhost=NOPASSWD: /bin/cat, /bin/ls
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[foobar@localhost ~]$ sudo ls /root
anaconda-ks.cfg Desktop install.log install.log.syslog
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# touch /var/log/sudo
# vi /etc/syslog.conf
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local2.debug /var/log/sudo
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kill -HUP PID
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[foobar@localhost ~]$ sudo ls /root
anaconda-ks.cfg Desktop install.log install.log.syslog
$cat /var/log/sudo
Jul 28 22:52:54 localhost sudo: foobar : TTY=pts/1 ; PWD=/home/foobar ; USER=root ; COMMAND=/bin/ls /root
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[foobar@localhost ~]$ sudo cat /etc/shadow > /dev/null
[foobar@localhost ~]$ cat /var/log/sudo
...
Jul 28 23:10:24 localhost sudo: foobar : TTY=pts/1 ; PWD=/home/foobar ; USER=root ; COMMAND=/bin/cat /etc/shadow
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[foobar@localhost ~]$ sudo ls /root > /etc/shadow
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