Linux 系統(tǒng)日常巡檢腳本，巡檢內(nèi)容包含了：磁盤、內(nèi)存、CPU、進(jìn)程、文件更改、用戶登錄等一系列的操作，直接用就行了。
報(bào)告以郵件發(fā)送到郵箱，在 log 下生成巡檢報(bào)告。
#!/bin/bash
# @Author: HanWei
# @Date: 2020-03-16 09:56:57
# @Last Modified by: HanWei
# @Last Modified time: 2020-03-16 11:06:31
# @E-mail: han_wei_95@163.com
#!/bin/bash
#主機(jī)信息每日巡檢
IPADDR=$(ifconfig eth0|grep 'inet addr'|awk -F '[ :]' '{print $13}')
#環(huán)境變量PATH沒設(shè)好，在cron里執(zhí)行時(shí)有很多命令會(huì)找不到
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
source /etc/profile
[ $(id -u) -gt 0 ] && echo "請(qǐng)用root用戶執(zhí)行此腳本！" && exit 1
centosVersion=$(awk '{print $(NF-1)}' /etc/redhat-release)
VERSION="2020-03-16"
#日志相關(guān)
PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
[ -f $PROGPATH ] && PROGPATH="."
LOGPATH="$PROGPATH/log"
[ -e $LOGPATH ] || mkdir $LOGPATH
RESULTFILE="$LOGPATH/HostDailyCheck-$IPADDR-`date +%Y%m%d`.txt"
#定義報(bào)表的全局變量
report_DateTime="" #日期 ok
report_Hostname="" #主機(jī)名 ok
report_OSRelease="" #發(fā)行版本 ok
report_Kernel="" #內(nèi)核 ok
report_Language="" #語言/編碼 ok
report_LastReboot="" #最近啟動(dòng)時(shí)間 ok
report_Uptime="" #運(yùn)行時(shí)間（天） ok
report_CPUs="" #CPU數(shù)量 ok
report_CPUType="" #CPU類型 ok
report_Arch="" #CPU架構(gòu) ok
report_MemTotal="" #內(nèi)存總?cè)萘?MB) ok
report_MemFree="" #內(nèi)存剩余(MB) ok
report_MemUsedPercent="" #內(nèi)存使用率% ok
report_DiskTotal="" #硬盤總?cè)萘?GB) ok
report_DiskFree="" #硬盤剩余(GB) ok
report_DiskUsedPercent="" #硬盤使用率% ok
report_InodeTotal="" #Inode總量 ok
report_InodeFree="" #Inode剩余 ok
report_InodeUsedPercent="" #Inode使用率 ok
report_IP="" #IP地址 ok
report_MAC="" #MAC地址 ok
report_Gateway="" #默認(rèn)網(wǎng)關(guān) ok
report_DNS="" #DNS ok
report_Listen="" #監(jiān)聽 ok
report_Selinux="" #Selinux ok
report_Firewall="" #防火墻 ok
report_USERs="" #用戶 ok
report_USEREmptyPassword="" #空密碼用戶 ok
report_USERTheSameUID="" #相同ID的用戶 ok
report_PasswordExpiry="" #密碼過期（天） ok
report_RootUser="" #root用戶 ok
report_Sudoers="" #sudo授權(quán) ok
report_SSHAuthorized="" #SSH信任主機(jī) ok
report_SSHDProtocolVersion="" #SSH協(xié)議版本 ok
report_SSHDPermitRootLogin="" #允許root遠(yuǎn)程登錄 ok
report_DefunctProsess="" #僵尸進(jìn)程數(shù)量 ok
report_SelfInitiatedService="" #自啟動(dòng)服務(wù)數(shù)量 ok
report_SelfInitiatedProgram="" #自啟動(dòng)程序數(shù)量 ok
report_RuningService="" #運(yùn)行中服務(wù)數(shù) ok
report_Crontab="" #計(jì)劃任務(wù)數(shù) ok
report_Syslog="" #日志服務(wù) ok
report_SNMP="" #SNMP OK
report_NTP="" #NTP ok
report_JDK="" #JDK版本 ok
function version(){
echo ""
echo ""
echo "系統(tǒng)巡檢腳本：Version $VERSION"
}
function getCpuStatus(){
echo ""
echo ""
echo "############################ CPU檢查 #############################"
Physical_CPUs=$(grep "physical id" /proc/cpuinfo| sort | uniq | wc -l)
Virt_CPUs=$(grep "processor" /proc/cpuinfo | wc -l)
CPU_Kernels=$(grep "cores" /proc/cpuinfo|uniq| awk -F ': ' '{print $2}')
CPU_Type=$(grep "model name" /proc/cpuinfo | awk -F ': ' '{print $2}' | sort | uniq)
CPU_Arch=$(uname -m)
echo "物理CPU個(gè)數(shù):$Physical_CPUs"
echo "邏輯CPU個(gè)數(shù):$Virt_CPUs"
echo "每CPU核心數(shù):$CPU_Kernels"
echo " CPU型號(hào):$CPU_Type"
echo " CPU架構(gòu):$CPU_Arch"
#報(bào)表信息
report_CPUs=$Virt_CPUs #CPU數(shù)量
report_CPUType=$CPU_Type #CPU類型
report_Arch=$CPU_Arch #CPU架構(gòu)
}
function getMemStatus(){
echo ""
echo ""
echo "############################ 內(nèi)存檢查 ############################"
if [[ $centosVersion < 7 ]];then
free -mo
else
free -h
fi
#報(bào)表信息
MemTotal=$(grep MemTotal /proc/meminfo| awk '{print $2}') #KB
MemFree=$(grep MemFree /proc/meminfo| awk '{print $2}') #KB
let MemUsed=MemTotal-MemFree
MemPercent=$(awk "BEGIN {if($MemTotal==0){printf 100}else{printf \"%.2f\",$MemUsed*100/$MemTotal}}")
report_MemTotal="$((MemTotal/1024))""MB" #內(nèi)存總?cè)萘?MB)
report_MemFree="$((MemFree/1024))""MB" #內(nèi)存剩余(MB)
report_MemUsedPercent="$(awk "BEGIN {if($MemTotal==0){printf 100}else{printf \"%.2f\",$MemUsed*100/$MemTotal}}")""%" #內(nèi)存使用率%
}
function getDiskStatus(){
echo ""
echo ""
echo "############################ 磁盤檢查 ############################"
df -hiP | sed 's/Mounted on/Mounted/'> /tmp/inode
df -hTP | sed 's/Mounted on/Mounted/'> /tmp/disk
join /tmp/disk /tmp/inode | awk '{print $1,$2,"|",$3,$4,$5,$6,"|",$8,$9,$10,$11,"|",$12}'| column -t
#報(bào)表信息
diskdata=$(df -TP | sed '1d' | awk '$2!="tmpfs"{print}') #KB
disktotal=$(echo "$diskdata" | awk '{total+=$3}END{print total}') #KB
diskused=$(echo "$diskdata" | awk '{total+=$4}END{print total}') #KB
diskfree=$((disktotal-diskused)) #KB
diskusedpercent=$(echo $disktotal $diskused | awk '{if($1==0){printf 100}else{printf "%.2f",$2*100/$1}}')
inodedata=$(df -iTP | sed '1d' | awk '$2!="tmpfs"{print}')
inodetotal=$(echo "$inodedata" | awk '{total+=$3}END{print total}')
inodeused=$(echo "$inodedata" | awk '{total+=$4}END{print total}')
inodefree=$((inodetotal-inodeused))
inodeusedpercent=$(echo $inodetotal $inodeused | awk '{if($1==0){printf 100}else{printf "%.2f",$2*100/$1}}')
report_DiskTotal=$((disktotal/1024/1024))"GB" #硬盤總?cè)萘?GB)
report_DiskFree=$((diskfree/1024/1024))"GB" #硬盤剩余(GB)
report_DiskUsedPercent="$diskusedpercent""%" #硬盤使用率%
report_InodeTotal=$((inodetotal/1000))"K" #Inode總量
report_InodeFree=$((inodefree/1000))"K" #Inode剩余
report_InodeUsedPercent="$inodeusedpercent""%" #Inode使用率%
}
function getSystemStatus(){
echo ""
echo ""
echo "############################ 系統(tǒng)檢查 ############################"
if [ -e /etc/sysconfig/i18n ];then
default_LANG="$(grep "LANG=" /etc/sysconfig/i18n | grep -v "^#" | awk -F '"' '{print $2}')"
else
default_LANG=$LANG
fi
export LANG="en_US.UTF-8"
Release=$(cat /etc/redhat-release 2>/dev/null)
Kernel=$(uname -r)
OS=$(uname -o)
Hostname=$(uname -n)
SELinux=$(/usr/sbin/sestatus | grep "SELinux status: " | awk '{print $3}')
LastReboot=$(who -b | awk '{print $3,$4}')
uptime=$(uptime | sed 's/.*up \([^,]*\), .*/\1/')
echo " 系統(tǒng)：$OS"
echo " 發(fā)行版本：$Release"
echo " 內(nèi)核：$Kernel"
echo " 主機(jī)名：$Hostname"
echo " SELinux：$SELinux"
echo "語言/編碼：$default_LANG"
echo " 當(dāng)前時(shí)間：$(date +'%F %T')"
echo " 最后啟動(dòng)：$LastReboot"
echo " 運(yùn)行時(shí)間：$uptime"
#報(bào)表信息
report_DateTime=$(date +"%F %T") #日期
report_Hostname="$Hostname" #主機(jī)名
report_OSRelease="$Release" #發(fā)行版本
report_Kernel="$Kernel" #內(nèi)核
report_Language="$default_LANG" #語言/編碼
report_LastReboot="$LastReboot" #最近啟動(dòng)時(shí)間
report_Uptime="$uptime" #運(yùn)行時(shí)間（天）
report_Selinux="$SELinux"
export LANG="$default_LANG"
}
function getServiceStatus(){
echo ""
echo ""
echo "############################ 服務(wù)檢查 ############################"
echo ""
if [[ $centosVersion > 7 ]];then
conf=$(systemctl list-unit-files --type=service --state=enabled --no-pager | grep "enabled")
process=$(systemctl list-units --type=service --state=running --no-pager | grep ".service")
#報(bào)表信息
report_SelfInitiatedService="$(echo "$conf" | wc -l)" #自啟動(dòng)服務(wù)數(shù)量
report_RuningService="$(echo "$process" | wc -l)" #運(yùn)行中服務(wù)數(shù)量
else
conf=$(/sbin/chkconfig | grep -E ":on|:啟用")
process=$(/sbin/service --status-all 2>/dev/null | grep -E "is running|正在運(yùn)行")
#報(bào)表信息
report_SelfInitiatedService="$(echo "$conf" | wc -l)" #自啟動(dòng)服務(wù)數(shù)量
report_RuningService="$(echo "$process" | wc -l)" #運(yùn)行中服務(wù)數(shù)量
fi
echo "服務(wù)配置"
echo "--------"
echo "$conf" | column -t
echo ""
echo "正在運(yùn)行的服務(wù)"
echo "--------------"
echo "$process"
}
function getAutoStartStatus(){
echo ""
echo ""
echo "############################ 自啟動(dòng)檢查 ##########################"
conf=$(grep -v "^#" /etc/rc.d/rc.local| sed '/^$/d')
echo "$conf"
#報(bào)表信息
report_SelfInitiatedProgram="$(echo $conf | wc -l)" #自啟動(dòng)程序數(shù)量
}
function getLoginStatus(){
echo ""
echo ""
echo "############################ 登錄檢查 ############################"
last | head
}
function getNetworkStatus(){
echo ""
echo ""
echo "############################ 網(wǎng)絡(luò)檢查 ############################"
if [[ $centosVersion < 7 ]];then
/sbin/ifconfig -a | grep -v packets | grep -v collisions | grep -v inet6
else
#ip a
for i in $(ip link | grep BROADCAST | awk -F: '{print $2}');do ip add show $i | grep -E "BROADCAST|global"| awk '{print $2}' | tr '\n' ' ' ;echo "" ;done
fi
GATEWAY=$(ip route | grep default | awk '{print $3}')
DNS=$(grep nameserver /etc/resolv.conf| grep -v "#" | awk '{print $2}' | tr '\n' ',' | sed 's/,$//')
echo ""
echo "網(wǎng)關(guān)：$GATEWAY "
echo " DNS：$DNS"
#報(bào)表信息
IP=$(ip -f inet addr | grep -v 127.0.0.1 | grep inet | awk '{print $NF,$2}' | tr '\n' ',' | sed 's/,$//')
MAC=$(ip link | grep -v "LOOPBACK\|loopback" | awk '{print $2}' | sed 'N;s/\n//' | tr '\n' ',' | sed 's/,$//')
report_IP="$IP" #IP地址
report_MAC=$MAC #MAC地址
report_Gateway="$GATEWAY" #默認(rèn)網(wǎng)關(guān)
report_DNS="$DNS" #DNS
}
function getListenStatus(){
echo ""
echo ""
echo "############################ 監(jiān)聽檢查 ############################"
TCPListen=$(ss -ntul | column -t)
echo "$TCPListen"
#報(bào)表信息
report_Listen="$(echo "$TCPListen"| sed '1d' | awk '/tcp/ {print $5}' | awk -F: '{print $NF}' | sort | uniq | wc -l)"
}
function getCronStatus(){
echo ""
echo ""
echo "############################ 計(jì)劃任務(wù)檢查 ########################"
Crontab=0
for shell in $(grep -v "/sbin/nologin" /etc/shells);do
for user in $(grep "$shell" /etc/passwd| awk -F: '{print $1}');do
crontab -l -u $user >/dev/null 2>&1
status=$?
if [ $status -eq 0 ];then
echo "$user"
echo "--------"
crontab -l -u $user
let Crontab=Crontab+$(crontab -l -u $user | wc -l)
echo ""
fi
done
done
#計(jì)劃任務(wù)
find /etc/cron* -type f | xargs -i ls -l {} | column -t
let Crontab=Crontab+$(find /etc/cron* -type f | wc -l)
#報(bào)表信息
report_Crontab="$Crontab" #計(jì)劃任務(wù)數(shù)
}
function getHowLongAgo(){
# 計(jì)算一個(gè)時(shí)間戳離現(xiàn)在有多久了
datetime="$*"
[ -z "$datetime" ] && echo "錯(cuò)誤的參數(shù)：getHowLongAgo() $*"
Timestamp=$(date +%s -d "$datetime") #轉(zhuǎn)化為時(shí)間戳
Now_Timestamp=$(date +%s)
Difference_Timestamp=$(($Now_Timestamp-$Timestamp))
days=0;hours=0;minutes=0;
sec_in_day=$((60*60*24));
sec_in_hour=$((60*60));
sec_in_minute=60
while (( $(($Difference_Timestamp-$sec_in_day)) > 1 ))
do
let Difference_Timestamp=Difference_Timestamp-sec_in_day
let days++
done
while (( $(($Difference_Timestamp-$sec_in_hour)) > 1 ))
do
let Difference_Timestamp=Difference_Timestamp-sec_in_hour
let hours++
done
echo "$days 天 $hours 小時(shí)前"
}
function getUserLastLogin(){
# 獲取用戶最近一次登錄的時(shí)間，含年份
# 很遺憾last命令不支持顯示年份，只有"last -t YYYYMMDDHHMMSS"表示某個(gè)時(shí)間之間的登錄，我
# 們只能用最笨的方法了，對(duì)比今天之前和今年元旦之前（或者去年之前和前年之前……）某個(gè)用戶
# 登錄次數(shù)，如果登錄統(tǒng)計(jì)次數(shù)有變化，則說明最近一次登錄是今年。
username=$1
: ${username:="`whoami`"}
thisYear=$(date +%Y)
oldesYear=$(last | tail -n1 | awk '{print $NF}')
while(( $thisYear >= $oldesYear));do
loginBeforeToday=$(last $username | grep $username | wc -l)
loginBeforeNewYearsDayOfThisYear=$(last $username -t $thisYear"0101000000" | grep $username | wc -l)
if [ $loginBeforeToday -eq 0 ];then
echo "從未登錄過"
break
elif [ $loginBeforeToday -gt $loginBeforeNewYearsDayOfThisYear ];then
lastDateTime=$(last -i $username | head -n1 | awk '{for(i=4;i<(NF-2);i++)printf"%s ",$i}')" $thisYear" #格式如: Sat Nov 2 20:33 2015
lastDateTime=$(date "+%Y-%m-%d %H:%M:%S" -d "$lastDateTime")
echo "$lastDateTime"
break
else
thisYear=$((thisYear-1))
fi
done
}
function getUserStatus(){
echo ""
echo ""
echo "############################ 用戶檢查 ############################"
#/etc/passwd 最后修改時(shí)間
pwdfile="$(cat /etc/passwd)"
Modify=$(stat /etc/passwd | grep Modify | tr '.' ' ' | awk '{print $2,$3}')
echo "/etc/passwd 最后修改時(shí)間：$Modify ($(getHowLongAgo $Modify))"
echo ""
echo "特權(quán)用戶"
echo "--------"
RootUser=""
for user in $(echo "$pwdfile" | awk -F: '{print $1}');do
if [ $(id -u $user) -eq 0 ];then
echo "$user"
RootUser="$RootUser,$user"
fi
done
echo ""
echo "用戶列表"
echo "--------"
USERs=0
echo "$(
echo "用戶名 UID GID HOME SHELL 最后一次登錄"
for shell in $(grep -v "/sbin/nologin" /etc/shells);do
for username in $(grep "$shell" /etc/passwd| awk -F: '{print $1}');do
userLastLogin="$(getUserLastLogin $username)"
echo "$pwdfile" | grep -w "$username" |grep -w "$shell"| awk -F: -v lastlogin="$(echo "$userLastLogin" | tr ' ' '_')" '{print $1,$3,$4,$6,$7,lastlogin}'
done
let USERs=USERs+$(echo "$pwdfile" | grep "$shell"| wc -l)
done
)" | column -t
echo ""
echo "空密碼用戶"
echo "----------"
USEREmptyPassword=""
for shell in $(grep -v "/sbin/nologin" /etc/shells);do
for user in $(echo "$pwdfile" | grep "$shell" | cut -d: -f1);do
r=$(awk -F: '$2=="!!"{print $1}' /etc/shadow | grep -w $user)
if [ ! -z $r ];then
echo $r
USEREmptyPassword="$USEREmptyPassword,"$r
fi
done
done
echo ""
echo "相同ID的用戶"
echo "------------"
USERTheSameUID=""
UIDs=$(cut -d: -f3 /etc/passwd | sort | uniq -c | awk '$1>1{print $2}')
for uid in $UIDs;do
echo -n "$uid";
USERTheSameUID="$uid"
r=$(awk -F: 'ORS="";$3=='"$uid"'{print ":",$1}' /etc/passwd)
echo "$r"
echo ""
USERTheSameUID="$USERTheSameUID $r,"
done
#報(bào)表信息
report_USERs="$USERs" #用戶
report_USEREmptyPassword=$(echo $USEREmptyPassword | sed 's/^,//')
report_USERTheSameUID=$(echo $USERTheSameUID | sed 's/,$//')
report_RootUser=$(echo $RootUser | sed 's/^,//') #特權(quán)用戶
}
function getPasswordStatus {
echo ""
echo ""
echo "############################ 密碼檢查 ############################"
pwdfile="$(cat /etc/passwd)"
echo ""
echo "密碼過期檢查"
echo "------------"
result=""
for shell in $(grep -v "/sbin/nologin" /etc/shells);do
for user in $(echo "$pwdfile" | grep "$shell" | cut -d: -f1);do
get_expiry_date=$(/usr/bin/chage -l $user | grep 'Password expires' | cut -d: -f2)
if [[ $get_expiry_date = ' never' || $get_expiry_date = 'never' ]];then
printf "%-15s 永不過期\n" $user
result="$result,$user:never"
else
password_expiry_date=$(date -d "$get_expiry_date" "+%s")
current_date=$(date "+%s")
diff=$(($password_expiry_date-$current_date))
let DAYS=$(($diff/(60*60*24)))
printf "%-15s %s天后過期\n" $user $DAYS
result="$result,$user:$DAYS days"
fi
done
done
report_PasswordExpiry=$(echo $result | sed 's/^,//')
echo ""
echo "密碼策略檢查"
echo "------------"
grep -v "#" /etc/login.defs | grep -E "PASS_MAX_DAYS|PASS_MIN_DAYS|PASS_MIN_LEN|PASS_WARN_AGE"
}
function getSudoersStatus(){
echo ""
echo ""
echo "############################ Sudoers檢查 #########################"
conf=$(grep -v "^#" /etc/sudoers| grep -v "^Defaults" | sed '/^$/d')
echo "$conf"
echo ""
#報(bào)表信息
report_Sudoers="$(echo $conf | wc -l)"
}
function getInstalledStatus(){
echo ""
echo ""
echo "############################ 軟件檢查 ############################"
rpm -qa --last | head | column -t
}
function getProcessStatus(){
echo ""
echo ""
echo "############################ 進(jìn)程檢查 ############################"
if [ $(ps -ef | grep defunct | grep -v grep | wc -l) -ge 1 ];then
echo ""
echo "僵尸進(jìn)程";
echo "--------"
ps -ef | head -n1
ps -ef | grep defunct | grep -v grep
fi
echo ""
echo "內(nèi)存占用TOP10"
echo "-------------"
echo -e "PID %MEM RSS COMMAND
$(ps aux | awk '{print $2, $4, $6, $11}' | sort -k3rn | head -n 10 )"| column -t
echo ""
echo "CPU占用TOP10"
echo "------------"
top b -n1 | head -17 | tail -11
#報(bào)表信息
report_DefunctProsess="$(ps -ef | grep defunct | grep -v grep|wc -l)"
}
function getJDKStatus(){
echo ""
echo ""
echo "############################ JDK檢查 #############################"
java -version 2>/dev/null
if [ $? -eq 0 ];then
java -version 2>&1
fi
echo "JAVA_HOME=\"$JAVA_HOME\""
#報(bào)表信息
report_JDK="$(java -version 2>&1 | grep version | awk '{print $1,$3}' | tr -d '"')"
}
function getSyslogStatus(){
echo ""
echo ""
echo "############################ syslog檢查 ##########################"
echo "服務(wù)狀態(tài)：$(getState rsyslog)"
echo ""
echo "/etc/rsyslog.conf"
echo "-----------------"
cat /etc/rsyslog.conf 2>/dev/null | grep -v "^#" | grep -v "^\\$" | sed '/^$/d' | column -t
#報(bào)表信息
report_Syslog="$(getState rsyslog)"
}
function getFirewallStatus(){
echo ""
echo ""
echo "############################ 防火墻檢查 ##########################"
#防火墻狀態(tài)，策略等
if [[ $centosVersion < 7 ]];then
/etc/init.d/iptables status >/dev/null 2>&1
status=$?
if [ $status -eq 0 ];then
s="active"
elif [ $status -eq 3 ];then
s="inactive"
elif [ $status -eq 4 ];then
s="permission denied"
else
s="unknown"
fi
else
s="$(getState iptables)"
fi
echo "iptables: $s"
echo ""
echo "/etc/sysconfig/iptables"
echo "-----------------------"
cat /etc/sysconfig/iptables 2>/dev/null
#報(bào)表信息
report_Firewall="$s"
}
function getSNMPStatus(){
#SNMP服務(wù)狀態(tài)，配置等
echo ""
echo ""
echo "############################ SNMP檢查 ############################"
status="$(getState snmpd)"
echo "服務(wù)狀態(tài)：$status"
echo ""
if [ -e /etc/snmp/snmpd.conf ];then
echo "/etc/snmp/snmpd.conf"
echo "--------------------"
cat /etc/snmp/snmpd.conf 2>/dev/null | grep -v "^#" | sed '/^$/d'
fi
#報(bào)表信息
report_SNMP="$(getState snmpd)"
}
function getState(){
if [[ $centosVersion < 7 ]];then
if [ -e "/etc/init.d/$1" ];then
if [ `/etc/init.d/$1 status 2>/dev/null | grep -E "is running|正在運(yùn)行" | wc -l` -ge 1 ];then
r="active"
else
r="inactive"
fi
else
r="unknown"
fi
else
#CentOS 7+
r="$(systemctl is-active $1 2>&1)"
fi
echo "$r"
}
function getSSHStatus(){
#SSHD服務(wù)狀態(tài)，配置,受信任主機(jī)等
echo ""
echo ""
echo "############################ SSH檢查 #############################"
#檢查受信任主機(jī)
pwdfile="$(cat /etc/passwd)"
echo "服務(wù)狀態(tài)：$(getState sshd)"
Protocol_Version=$(cat /etc/ssh/sshd_config | grep Protocol | awk '{print $2}')
echo "SSH協(xié)議版本：$Protocol_Version"
echo ""
echo "信任主機(jī)"
echo "--------"
authorized=0
for user in $(echo "$pwdfile" | grep /bin/bash | awk -F: '{print $1}');do
authorize_file=$(echo "$pwdfile" | grep -w $user | awk -F: '{printf $6"/.ssh/authorized_keys"}')
authorized_host=$(cat $authorize_file 2>/dev/null | awk '{print $3}' | tr '\n' ',' | sed 's/,$//')
if [ ! -z $authorized_host ];then
echo "$user 授權(quán) \"$authorized_host\" 無密碼訪問"
fi
let authorized=authorized+$(cat $authorize_file 2>/dev/null | awk '{print $3}'|wc -l)
done
echo ""
echo "是否允許ROOT遠(yuǎn)程登錄"
echo "--------------------"
config=$(cat /etc/ssh/sshd_config | grep PermitRootLogin)
firstChar=${config:0:1}
if [ $firstChar == "#" ];then
PermitRootLogin="yes" #默認(rèn)是允許ROOT遠(yuǎn)程登錄的
else
PermitRootLogin=$(echo $config | awk '{print $2}')
fi
echo "PermitRootLogin $PermitRootLogin"
echo ""
echo "/etc/ssh/sshd_config"
echo "--------------------"
cat /etc/ssh/sshd_config | grep -v "^#" | sed '/^$/d'
#報(bào)表信息
report_SSHAuthorized="$authorized" #SSH信任主機(jī)
report_SSHDProtocolVersion="$Protocol_Version" #SSH協(xié)議版本
report_SSHDPermitRootLogin="$PermitRootLogin" #允許root遠(yuǎn)程登錄
}
function getNTPStatus(){
#NTP服務(wù)狀態(tài)，當(dāng)前時(shí)間，配置等
echo ""
echo ""
echo "############################ NTP檢查 #############################"
if [ -e /etc/ntp.conf ];then
echo "服務(wù)狀態(tài)：$(getState ntpd)"
echo ""
echo "/etc/ntp.conf"
echo "-------------"
cat /etc/ntp.conf 2>/dev/null | grep -v "^#" | sed '/^$/d'
fi
#報(bào)表信息
report_NTP="$(getState ntpd)"
}
function uploadHostDailyCheckReport(){
json="{
\"DateTime\":\"$report_DateTime\",
\"Hostname\":\"$report_Hostname\",
\"OSRelease\":\"$report_OSRelease\",
\"Kernel\":\"$report_Kernel\",
\"Language\":\"$report_Language\",
\"LastReboot\":\"$report_LastReboot\",
\"Uptime\":\"$report_Uptime\",
\"CPUs\":\"$report_CPUs\",
\"CPUType\":\"$report_CPUType\",
\"Arch\":\"$report_Arch\",
\"MemTotal\":\"$report_MemTotal\",
\"MemFree\":\"$report_MemFree\",
\"MemUsedPercent\":\"$report_MemUsedPercent\",
\"DiskTotal\":\"$report_DiskTotal\",
\"DiskFree\":\"$report_DiskFree\",
\"DiskUsedPercent\":\"$report_DiskUsedPercent\",
\"InodeTotal\":\"$report_InodeTotal\",
\"InodeFree\":\"$report_InodeFree\",
\"InodeUsedPercent\":\"$report_InodeUsedPercent\",
\"IP\":\"$report_IP\",
\"MAC\":\"$report_MAC\",
\"Gateway\":\"$report_Gateway\",
\"DNS\":\"$report_DNS\",
\"Listen\":\"$report_Listen\",
\"Selinux\":\"$report_Selinux\",
\"Firewall\":\"$report_Firewall\",
\"USERs\":\"$report_USERs\",
\"USEREmptyPassword\":\"$report_USEREmptyPassword\",
\"USERTheSameUID\":\"$report_USERTheSameUID\",
\"PasswordExpiry\":\"$report_PasswordExpiry\",
\"RootUser\":\"$report_RootUser\",
\"Sudoers\":\"$report_Sudoers\",
\"SSHAuthorized\":\"$report_SSHAuthorized\",
\"SSHDProtocolVersion\":\"$report_SSHDProtocolVersion\",
\"SSHDPermitRootLogin\":\"$report_SSHDPermitRootLogin\",
\"DefunctProsess\":\"$report_DefunctProsess\",
\"SelfInitiatedService\":\"$report_SelfInitiatedService\",
\"SelfInitiatedProgram\":\"$report_SelfInitiatedProgram\",
\"RuningService\":\"$report_RuningService\",
\"Crontab\":\"$report_Crontab\",
\"Syslog\":\"$report_Syslog\",
\"SNMP\":\"$report_SNMP\",
\"NTP\":\"$report_NTP\",
\"JDK\":\"$report_JDK\"
}"
#echo "$json"
curl -l -H "Content-type: application/json" -X POST -d "$json" "$uploadHostDailyCheckReportApi" 2>/dev/null
}
function getchage_file_24h()
{
echo "############################ 文件檢查 #############################"
check2=$(find / -name '*.sh' -mtime -1)
check21=$(find / -name '*.asp' -mtime -1)
check22=$(find / -name '*.php' -mtime -1)
check23=$(find / -name '*.aspx' -mtime -1)
check24=$(find / -name '*.jsp' -mtime -1)
check25=$(find / -name '*.html' -mtime -1)
check26=$(find / -name '*.htm' -mtime -1)
check9=$(find / -name core -exec ls -l {} \;)
check10=$(cat /etc/crontab)
check12=$(ls -alt /usr/bin | head -10)
cat <<EOF
############################查看所有被修改過的文件返回最近24小時(shí)內(nèi)的############################
${check2}
${check21}
${check22}
${check23}
${check24}
${check25}
${check26}
${line}
############################檢查定時(shí)文件的完整性############################
${check10}
${line}
############################查看系統(tǒng)命令是否被替換############################
${check12}
${line}
EOF
}
function check(){
version
getSystemStatus
getCpuStatus
getMemStatus
getDiskStatus
getNetworkStatus
getListenStatus
getProcessStatus
getServiceStatus
getAutoStartStatus
getLoginStatus
getCronStatus
getUserStatus
getPasswordStatus
getSudoersStatus
getJDKStatus
getFirewallStatus
getSSHStatus
getSyslogStatus
getSNMPStatus
getNTPStatus
getInstalledStatus
getchage_file_24h
}
#執(zhí)行檢查并保存檢查結(jié)果
check > $RESULTFILE
echo "檢查結(jié)果：$RESULTFILE"
echo -e "`date "+%Y-%m-%d %H:%M:%S"` 阿里云PHP企業(yè)平臺(tái)巡檢報(bào)告" | mail -a $RESULTFILE -s "阿里云PHP企業(yè)平臺(tái)巡檢報(bào)告" h@163.com
END二、巡檢示例
系統(tǒng)巡檢腳本：Version 2020-03-16
############################ 系統(tǒng)檢查 ############################
系統(tǒng)：GNU/Linux
發(fā)行版本：CentOS Linux release 7.8.2003 (Core)
內(nèi)核：3.10.0-1127.el7.x86_64
主機(jī)名：localhost.localdomain
SELinux：enabled
語言/編碼：zh_CN.UTF-8
當(dāng)前時(shí)間：2022-09-12 15:00:42
最后啟動(dòng)：2022-09-08 11:59
運(yùn)行時(shí)間：4 days
############################ CPU檢查 #############################
物理CPU個(gè)數(shù):4
邏輯CPU個(gè)數(shù):4
每CPU核心數(shù):1
CPU型號(hào):Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS)
CPU架構(gòu):x86_64
############################ 內(nèi)存檢查 ############################
total used free shared buff/cache available
Mem: 3.7G 878M 961M 20M 1.9G 2.6G
Swap: 3.9G 0B 3.9G
############################ 磁盤檢查 ############################
文件系統(tǒng) 類型 | 容量 已用 可用 已用% | Inode 已用(I) 可用(I) 已用(I)% | 掛載點(diǎn)
devtmpfs devtmpfs | 1.9G 0 1.9G 0% | 470K 400 470K 1% | /dev
tmpfs tmpfs | 1.9G 0 1.9G 0% | 474K 1 474K 1% | /dev/shm
tmpfs tmpfs | 1.9G 0 1.9G 0% | 474K 733 473K 1% | /run
tmpfs tmpfs | 1.9G 0 1.9G 0% | 474K 16 474K 1% | /sys/fs/cgroup
tmpfs tmpfs | 1.9G 9.6M 1.9G 1% | 474K 1 474K 1% | /dev/shm
tmpfs tmpfs | 1.9G 9.6M 1.9G 1% | 474K 733 473K 1% | /run
tmpfs tmpfs | 1.9G 9.6M 1.9G 1% | 474K 16 474K 1% | /sys/fs/cgroup
tmpfs tmpfs | 1.9G 0 1.9G 0% | 474K 1 474K 1% | /dev/shm
tmpfs tmpfs | 1.9G 0 1.9G 0% | 474K 733 473K 1% | /run
tmpfs tmpfs | 1.9G 0 1.9G 0% | 474K 16 474K 1% | /sys/fs/cgroup
/dev/vda3 xfs | 50G 8.6G 42G 18% | 25M 154K 25M 1% | /
/dev/vda5 xfs | 46G 37M 46G 1% | 23M 174 23M 1% | /home
/dev/vda1 xfs | 1014M 180M 835M 18% | 512K 341 512K 1% | /boot
tmpfs tmpfs | 379M 4.0K 379M 1% | 474K 6 474K 1% | /run/user/42
tmpfs tmpfs | 379M 4.0K 379M 1% | 474K 20 474K 1% | /run/user/0
tmpfs tmpfs | 379M 32K 379M 1% | 474K 6 474K 1% | /run/user/42
tmpfs tmpfs | 379M 32K 379M 1% | 474K 20 474K 1% | /run/user/0
############################ 網(wǎng)絡(luò)檢查 ############################
eth0: 192.168.250.21/24
virbr0: 192.168.122.1/24
virbr0-nic:
網(wǎng)關(guān)：192.168.250.1
DNS：222.222.222.222
############################ 監(jiān)聽檢查 ############################
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
udp UNCONN 0 0 192.168.122.1:53 *:*
udp UNCONN 0 0 *%virbr0:67 *:*
udp UNCONN 0 0 *:111 *:*
udp UNCONN 0 0 127.0.0.1:323 *:*
udp UNCONN 0 0 *:778 *:*
udp UNCONN 0 0 *:5353 *:*
udp UNCONN 0 0 *:58983 *:*
udp UNCONN 0 0 [::]:111 [::]:*
udp UNCONN 0 0 [::1]:323 [::]:*
udp UNCONN 0 0 [::]:778 [::]:*
tcp LISTEN 0 128 *:111 *:*
tcp LISTEN 0 5 192.168.122.1:53 *:*
tcp LISTEN 0 128 *:22 *:*
tcp LISTEN 0 128 127.0.0.1:631 *:*
tcp LISTEN 0 100 127.0.0.1:25 *:*
tcp LISTEN 0 128 127.0.0.1:6010 *:*
tcp LISTEN 0 128 [::]:111 [::]:*
tcp LISTEN 0 128 [::]:22 [::]:*
tcp LISTEN 0 128 [::1]:631 [::]:*
tcp LISTEN 0 100 [::1]:25 [::]:*
tcp LISTEN 0 128 [::1]:6010 [::]:*
tcp LISTEN 0 80 [::]:3306 [::]:*
############################ 進(jìn)程檢查 ############################
內(nèi)存占用TOP10
-------------
PID %MEM RSS COMMAND
1529 5.0 194676 /usr/local/mysql/bin/mysqld
2463 5.0 194412 /usr/bin/gnome-shell
2740 1.4 57944 /usr/bin/gnome-software
1724 1.2 46724 /usr/bin/X
2703 0.8 33636 nautilus-desktop
2918 0.7 30040 /usr/libexec/gnome-terminal-server
2529 0.7 27260 /usr/libexec/goa-daemon
2829 0.6 24828 /usr/libexec/evolution-addressbook-factory-subprocess
2519 0.4 18640 /usr/libexec/evolution-source-registry
1075 0.4 18444 /usr/sbin/libvirtd
CPU占用TOP10
------------
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
27860 root 20 0 162124 2160 1520 R 11.8 0.1 0:00.04 top
1 root 20 0 193992 7140 4200 S 0.0 0.2 0:28.67 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.17 kthreadd
4 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
5 root 20 0 0 0 0 S 0.0 0.0 0:00.08 kworker/u8:0
6 root 20 0 0 0 0 S 0.0 0.0 0:00.20 ksoftirqd/0
7 root rt 0 0 0 0 S 0.0 0.0 0:00.35 migration/0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root 20 0 0 0 0 S 0.0 0.0 0:27.51 rcu_sched
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-drain
############################ 服務(wù)檢查 ############################
服務(wù)配置
--------
abrt-ccpp.service enabled
abrt-oops.service enabled
abrt-vmcore.service enabled
abrt-xorg.service enabled
abrtd.service enabled
accounts-daemon.service enabled
atd.service enabled
auditd.service enabled
autovt@.service enabled
avahi-daemon.service enabled
bluetooth.service enabled
chronyd.service enabled
crond.service enabled
cups.service enabled
dbus-org.bluez.service enabled
dbus-org.fedoraproject.FirewallD1.service enabled
dbus-org.freedesktop.Avahi.service enabled
dbus-org.freedesktop.ModemManager1.service enabled
dbus-org.freedesktop.nm-dispatcher.service enabled
display-manager.service enabled
dmraid-activation.service enabled
firewalld.service enabled
gdm.service enabled
getty@.service enabled
initial-setup-reconfiguration.service enabled
irqbalance.service enabled
iscsi-onboot.service enabled
iscsi.service enabled
kdump.service enabled
ksm.service enabled
ksmtuned.service enabled
libstoragemgmt.service enabled
libvirtd.service enabled
lvm2-monitor.service enabled
mcelog.service enabled
mdmonitor.service enabled
microcode.service enabled
ModemManager.service enabled
multipathd.service enabled
NetworkManager-dispatcher.service enabled
NetworkManager-wait-online.service enabled
NetworkManager.service enabled
postfix.service enabled
qemu-guest-agent.service enabled
rhel-autorelabel-mark.service enabled
rhel-autorelabel.service enabled
rhel-configure.service enabled
rhel-dmesg.service enabled
rhel-domainname.service enabled
rhel-import-state.service enabled
rhel-loadmodules.service enabled
rhel-readonly.service enabled
rngd.service enabled
rpcbind.service enabled
rsyslog.service enabled
rtkit-daemon.service enabled
smartd.service enabled
sshd.service enabled
sysstat.service enabled
systemd-readahead-collect.service enabled
systemd-readahead-drop.service enabled
systemd-readahead-replay.service enabled
tuned.service enabled
udisks2.service enabled
vdo.service enabled
vgauthd.service enabled
vmtoolsd-init.service enabled
vmtoolsd.service enabled
正在運(yùn)行的服務(wù)
--------------
abrt-oops.service loaded active running ABRT kernel log watcher
abrt-xorg.service loaded active running ABRT Xorg log watcher
abrtd.service loaded active running ABRT Automated Bug Reporting Tool
accounts-daemon.service loaded active running Accounts Service
alsa-state.service loaded active running Manage Sound Card State (restore and store)
atd.service loaded active running Job spooling tools
auditd.service loaded active running Security Auditing Service
avahi-daemon.service loaded active running Avahi mDNS/DNS-SD Stack
bolt.service loaded active running Thunderbolt system service
chronyd.service loaded active running NTP client/server
colord.service loaded active running Manage, Install and Generate Color Profiles
crond.service loaded active running Command Scheduler
cups.service loaded active running CUPS Printing Service
dbus.service loaded active running D-Bus System Message Bus
fwupd.service loaded active running Firmware update daemon
gdm.service loaded active running GNOME Display Manager
geoclue.service loaded active running Location Lookup Service
gssproxy.service loaded active running GSSAPI Proxy Daemon
irqbalance.service loaded active running irqbalance daemon
ksmtuned.service loaded active running Kernel Samepage Merging (KSM) Tuning Daemon
libstoragemgmt.service loaded active running libstoragemgmt plug-in server daemon
libvirtd.service loaded active running Virtualization daemon
lvm2-lvmetad.service loaded active running LVM2 metadata daemon
mcelog.service loaded active running Machine Check Exception Logging Daemon
ModemManager.service loaded active running Modem Manager
mysqld.service loaded active running LSB: start and stop MySQL
NetworkManager.service loaded active running Network Manager
packagekit.service loaded active running PackageKit Daemon
polkit.service loaded active running Authorization Manager
postfix.service loaded active running Postfix Mail Transport Agent
qemu-guest-agent.service loaded active running QEMU Guest Agent
rngd.service loaded active running Hardware RNG Entropy Gatherer Daemon
rpcbind.service loaded active running RPC bind service
rsyslog.service loaded active running System Logging Service
rtkit-daemon.service loaded active running RealtimeKit Scheduling Policy Service
smartd.service loaded active running Self Monitoring and Reporting Technology (SMART) Daemon
spice-vdagentd.service loaded active running Agent daemon for Spice guests
sshd.service loaded active running OpenSSH server daemon
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running Login Service
systemd-udevd.service loaded active running udev Kernel Device Manager
tuned.service loaded active running Dynamic System Tuning Daemon
udisks2.service loaded active running Disk Manager
upower.service loaded active running Daemon for power management
wpa_supplicant.service loaded active running WPA Supplicant daemon
############################ 自啟動(dòng)檢查 ##########################
touch /var/lock/subsys/local
############################ 登錄檢查 ############################
root pts/1 192.168.250.200 Mon Sep 12 14:54 still logged in
root pts/1 192.168.250.200 Fri Sep 9 09:06 - 15:09 (06:03)
root pts/4 192.168.250.200 Thu Sep 8 16:28 - 17:09 (00:41)
root pts/3 192.168.250.200 Thu Sep 8 15:50 - 17:09 (01:18)
root pts/1 192.168.250.200 Thu Sep 8 15:48 - 17:09 (01:20)
root pts/2 192.168.250.200 Thu Sep 8 12:12 - 16:58 (04:46)
root pts/1 192.168.250.221 Thu Sep 8 12:02 - 12:29 (00:26)
root pts/0 :0 Thu Sep 8 12:01 still logged in
root :0 :0 Thu Sep 8 12:01 still logged in
reboot system boot 3.10.0-1127.el7. Thu Sep 8 11:59 - 15:00 (4+03:01)
############################ 計(jì)劃任務(wù)檢查 ########################
-rw-r--r--. 1 root root 128 8月 9 2019 /etc/cron.d/0hourly
-rw-r--r--. 1 root root 108 11月 28 2019 /etc/cron.d/raid-check
-rw-------. 1 root root 235 4月 1 2020 /etc/cron.d/sysstat
-rwx------. 1 root root 219 4月 1 2020 /etc/cron.daily/logrotate
-rwxr-xr-x. 1 root root 618 10月 30 2018 /etc/cron.daily/man-db.cron
-rwx------. 1 root root 208 4月 11 2018 /etc/cron.daily/mlocate
-rw-------. 1 root root 0 8月 9 2019 /etc/cron.deny
-rwxr-xr-x. 1 root root 392 8月 9 2019 /etc/cron.hourly/0anacron
-rwxr-xr-x. 1 root root 191 8月 9 2019 /etc/cron.hourly/mcelog.cron
-rw-r--r--. 1 root root 451 6月 10 2014 /etc/crontab
############################ 用戶檢查 ############################
/etc/passwd 最后修改時(shí)間： (錯(cuò)誤的參數(shù)：getHowLongAgo()
0 天 15 小時(shí)前)
特權(quán)用戶
--------
root
用戶列表
--------
用戶名 UID GID HOME SHELL 最后一次登錄
root 0 0 /root /bin/bash 2022-09-12_14:54:00
moonrong 1000 1000 /home/moonrong /bin/bash 2022-08-30_13:38:00
mysql 1001 1001 /home/mysql /bin/bash 從未登錄過
空密碼用戶
----------
mysql
相同ID的用戶
------------
############################ 密碼檢查 ############################
密碼過期檢查
------------
root 0天后過期
moonrong 0天后過期
mysql 0天后過期
密碼策略檢查
------------
PASS_MAX_DAYS 99999
PASS_MIN_DAYS 0
PASS_MIN_LEN 5
PASS_WARN_AGE 7
############################ Sudoers檢查 #########################
root ALL=(ALL) ALL
%wheel ALL=(ALL) ALL
############################ JDK檢查 #############################
openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)
JAVA_HOME=""
############################ 防火墻檢查 ##########################
iptables: inactive
/etc/sysconfig/iptables
-----------------------
############################ SSH檢查 #############################
服務(wù)狀態(tài)：active
SSH協(xié)議版本：
信任主機(jī)
--------
是否允許ROOT遠(yuǎn)程登錄
--------------------
PermitRootLogin yes
/etc/ssh/sshd_config
--------------------
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTHPRIV
AuthorizedKeysFile .ssh/authorized_keys
PasswordAuthentication yes
ChallengeResponseAuthentication no
GSSAPIAuthentication yes
GSSAPICleanupCredentials no
UsePAM yes
X11Forwarding yes
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS
Subsystem sftp /usr/libexec/openssh/sftp-server
############################ syslog檢查 ##########################
服務(wù)狀態(tài)：active
/etc/rsyslog.conf
-----------------
*.info;mail.none;authpriv.none;cron.none /var/log/messages
authpriv.* /var/log/secure
mail.* -/var/log/maillog
cron.* /var/log/cron
*.emerg :omusrmsg:*
uucp,news.crit /var/log/spooler
local7.* /var/log/boot.log
############################ SNMP檢查 ############################
服務(wù)狀態(tài)：unknown
############################ NTP檢查 #############################
############################ 軟件檢查 ############################
percona-xtrabackup-24-2.4.21-1.el7.x86_64 2022年09月08日 星期四 16時(shí)14分37秒
libev-4.04-2.el6.x86_64 2022年09月08日 星期四 16時(shí)12分30秒
perl-Digest-MD5-2.52-3.el7.x86_64 2022年09月08日 星期四 12時(shí)47分08秒
perl-Digest-1.17-245.el7.noarch 2022年09月08日 星期四 12時(shí)47分07秒
perl-DBD-MySQL-4.023-6.el7.x86_64 2022年09月08日 星期四 12時(shí)47分07秒
gpg-pubkey-f4a80eb5-53a7ff4b 2022年09月08日 星期四 12時(shí)46分52秒
iwl3160-firmware-25.30.13.0-76.el7.noarch 2022年08月30日 星期二 12時(shí)57分11秒
iwl6000g2b-firmware-18.168.6.1-76.el7.noarch 2022年08月30日 星期二 12時(shí)57分10秒
iwl2030-firmware-18.168.6.1-76.el7.noarch 2022年08月30日 星期二 12時(shí)57分10秒
iwl2000-firmware-18.168.6.1-76.el7.noarch 2022年08月30日 星期二 12時(shí)57分10秒
############################ 文件檢查 #############################
############################查看所有被修改過的文件返回最近24小時(shí)內(nèi)的############################
/root/test.sh
############################檢查定時(shí)文件的完整性############################
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
# For details see man 4 crontabs
# Example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12) OR jan,feb,mar,apr ...
# | | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# | | | | |
# * * * * * user-name command to be executed
############################查看系統(tǒng)命令是否被替換############################
總用量 209588
dr-xr-xr-x. 2 root root 49152 9月 8 16:14 .
lrwxrwxrwx. 1 root root 10 9月 8 16:14 innobackupex -> xtrabackup
lrwxrwxrwx. 1 root root 4 8月 30 12:56 byacc -> yacc
lrwxrwxrwx. 1 root root 10 8月 30 12:56 traceroute6 -> traceroute
lrwxrwxrwx. 1 root root 4 8月 30 12:56 rnano -> nano
lrwxrwxrwx. 1 root root 4 8月 30 12:56 flex++ -> flex
lrwxrwxrwx. 1 root root 4 8月 30 12:56 lex -> flex
lrwxrwxrwx. 1 root root 18 8月 30 12:56 scsi-rescan -> rescan-scsi-bus.sh
lrwxrwxrwx. 1 root root 10 8月 30 12:56 lsdiff -> filterdiff
