1）禁用root 登陸

vi /etc/ssh/sshd_config

PermitRootLogin no

2) 修改啟動模式 3

vi /etc/inittab

3) 關服務

export LANG=en

chkconfig --level 2345 bluetooth off
chkconfig --level 2345 ip6tables off
chkconfig --level 2345 nfslock    off
chkconfig --level 2345 nfs        off
chkconfig --level 2345 sendmail   off

chkconfig --list bluetooth
chkconfig --list ip6tables
chkconfig --list nfslock
chkconfig --list nfs
chkconfig --list sendmail

/etc/init.d/sendmail   stop
/etc/init.d/bluetooth stop
/etc/init.d/ip6tables stop
/etc/init.d/nfslock    stop
/etc/init.d/nfs        stop

/etc/init.d/sendmail   status
/etc/init.d/bluetooth status
/etc/init.d/ip6tables status
/etc/init.d/nfslock    status
/etc/init.d/nfs        status

/etc/init.d/portmap    stop
chkconfig --level 2345 portmap off
chkconfig --list portmap
/etc/init.d/portmap        status

/etc/init.d/cups    stop
chkconfig --level 2345 cups off
chkconfig --list cups
/etc/init.d/cups        status


4) 審計

chkconfig --list | grep auditd

service auditd status

service auditd restart

vi /etc/audit/audit.rules

# Enable auditing

-e 1

## login configuration and information

-w /etc/login.defs -p wa -k CFG_login.defs

-w /etc/securetty -p wa -k CFG_securetty

-w /var/log/faillog -p wa -k LOG_faillog

-w /var/log/lastlog -p wa -k LOG_lastlog

-w /var/log/tallylog -p wa -k LOG_tallylog

## directory operations

#-a entry,always -S mkdir -S mkdirat -S rmdir

-a entry,always -F arch=b64 -S mkdir -S rmdir

## cron configuration & scheduled jobs

-w /etc/cron.allow -p wa -k CFG_cron.allow

-w /etc/cron.deny -p wa -k CFG_cron.deny

#-w /etc/cron.d/ -p wa -k CFG_cron.d -w /etc/cron.daily/ -p wa -k CFG_cron.daily

-w /etc/cron.hourly/ -p wa -k CFG_cron.hourly

-w /etc/cron.monthly/ -p wa -k CFG_cron.monthly

-w /etc/cron.weekly/ -p wa -k CFG_cron.weekly

-w /etc/crontab -p wa -k CFG_crontab

-w /var/spool/cron/root -k CFG_crontab_root

## user, group, password databases

-w /etc/group -p wa -k CFG_group

-w /etc/passwd -p wa -k CFG_passwd

-w /etc/gshadow -k CFG_gshadow

-w /etc/shadow -k CFG_shadow

-w /etc/security/opasswd -k CFG_opasswd

# ----- File System audit rules -----

# Add a watch on "passwd" with the arbitrary filterkey "fk_passwd" that

# generates records for "reads, writes, executes, and appends" on "passwd"

-w /etc/passwd -k fk_passwd -p rwxa

# Add a watch "shadow" with a NULL filterkey that has permissions

# filtering turned off

-w /etc/shadow

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