系统巡检脚本

工作需要开发的系统巡检脚本，适用于 CentOS6.x/7.x 拿出来给分享给大家。含有常用的检查模块，如硬盘、内存、进程等。安全性检查如隐藏特权用户、空密码用户、共享ID用户、密码有效期等等。部分代码用来生成CMDB的报表数据，不喜欢的可以拿掉。

注意：巡检不能替代监控！

流程图

画图工具：https://www.processon.com/i/5741b4ade4b09daf02b63286

运行结果

[root@localhost ~]# ./HostDailyCheck.sh 检查结果：./log/HostDailyCheck-localhost.localdomain-20160810.txt

巡检报告样本

系统巡检脚本：Version 2016.08.09############################ 系统检查 ############################     系统：GNU/Linux 发行版本：CentOS Linux release 7.2.1511 (Core)      内核：3.10.0-327.el7.x86_64   主机名：localhost.localdomain  SELinux：enabled语言/编码：en_US.UTF-8 当前时间：2016-08-10 01:16:38 最后启动：2016-08-09 00:40 运行时间：1 day############################ CPU检查 #############################物理CPU个数:1逻辑CPU个数:1每CPU核心数:1    CPU型号:Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz    CPU架构:x86_64############################ 内存检查 ############################              total        used        free      shared  buff/cache   availableMem:           1.9G        138M        343M        8.6M        1.5G        1.6GSwap:          2.0G          0B        2.0G############################ 磁盘检查 ############################Filesystem               Type      |  Size  Used  Avail  Use%  |  Inodes  IUsed  IFree  IUse%  |  Mounted/dev/mapper/centos-root  xfs       |  18G   1.6G  16G    9%    |  18M     24K    18M    1%     |  /devtmpfs                 devtmpfs  |  983M  0     983M   0%    |  246K    381    246K   1%     |  /devtmpfs                    tmpfs     |  993M  0     993M   0%    |  249K    1      249K   1%     |  /dev/shmtmpfs                    tmpfs     |  993M  0     993M   0%    |  249K    485    248K   1%     |  /runtmpfs                    tmpfs     |  993M  0     993M   0%    |  249K    13     249K   1%     |  /sys/fs/cgrouptmpfs                    tmpfs     |  993M  8.6M  985M   1%    |  249K    1      249K   1%     |  /dev/shmtmpfs                    tmpfs     |  993M  8.6M  985M   1%    |  249K    485    248K   1%     |  /runtmpfs                    tmpfs     |  993M  8.6M  985M   1%    |  249K    13     249K   1%     |  /sys/fs/cgrouptmpfs                    tmpfs     |  993M  0     993M   0%    |  249K    1      249K   1%     |  /dev/shmtmpfs                    tmpfs     |  993M  0     993M   0%    |  249K    485    248K   1%     |  /runtmpfs                    tmpfs     |  993M  0     993M   0%    |  249K    13     249K   1%     |  /sys/fs/cgroup/dev/sda1                xfs       |  497M  107M  391M   22%   |  500K    329    500K   1%     |  /boottmpfs                    tmpfs     |  199M  0     199M   0%    |  249K    1      249K   1%     |  /run/user/0/dev/loop0               iso9660   |  603M  603M  0      100%  |  0       0      0      -      |  /var/ftp/pub############################ 网络检查 ############################eno16777736: 192.168.100.63/24 192.168.100.68/24 网关：192.168.100.2  DNS：192.168.100.2############################ 监听检查 ############################Netid  State   Recv-Q  Send-Q  Local         Address:Port  Peer  Address:Portudp    UNCONN  0       0       *:14034       *:*udp    UNCONN  0       0       *:46966       *:*udp    UNCONN  0       0       *:67          *:*udp    UNCONN  0       0       *:68          *:*udp    UNCONN  0       0       *:69          *:*udp    UNCONN  0       0       :::46966      :::*udp    UNCONN  0       0       :::32833      :::*tcp    LISTEN  0       128     *:22          *:*tcp    LISTEN  0       100     127.0.0.1:25  *:*tcp    LISTEN  0       32      :::21         :::*tcp    LISTEN  0       128     :::22         :::*tcp    LISTEN  0       100     ::1:25        :::*############################ 进程检查 ############################内存占用TOP10-------------PID    %MEM  RSS    COMMAND10069  0.9   18612  /usr/sbin/dhcpd1212   0.8   16396  /usr/bin/python10036  0.7   15800  /sbin/dhclient992    0.5   11992  /usr/lib/polkit-1/polkitd962    0.4   8232   /usr/sbin/NetworkManager1      0.3   7208   /usr/lib/systemd/systemd969    0.2   5320   /usr/sbin/rsyslogd10196  0.2   5076   sshd:10175  0.2   5072   sshd:810    0.2   4996   /usr/lib/systemd/systemd-journaldCPU占用TOP10------------   PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND 10638 root      20   0  146272   2164   1352 R  6.2  0.1   0:00.01 top     1 root      20   0   44496   7208   2612 S  0.0  0.4   0:03.83 systemd     2 root      20   0       0      0      0 S  0.0  0.0   0:00.04 kthreadd     3 root      20   0       0      0      0 S  0.0  0.0   0:00.67 ksoftirqd/0     7 root      rt   0       0      0      0 S  0.0  0.0   0:00.00 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   0:00.00 rcuob/0    10 root      20   0       0      0      0 S  0.0  0.0   0:00.00 rcuob/1    11 root      20   0       0      0      0 S  0.0  0.0   0:00.00 rcuob/2    12 root      20   0       0      0      0 S  0.0  0.0   0:00.00 rcuob/3############################ 服务检查 ############################服务配置--------auditd.service                               enabledcrond.service                                enableddbus-org.freedesktop.NetworkManager.service  enableddbus-org.freedesktop.nm-dispatcher.service   enableddhcpd.service                                enabledgetty@.service                               enabledirqbalance.service                           enabledlvm2-monitor.service                         enabledmicrocode.service                            enabledNetworkManager-dispatcher.service            enabledNetworkManager.service                       enabledpostfix.service                              enabledrsyslog.service                              enabledsshd.service                                 enabledsystemd-readahead-collect.service            enabledsystemd-readahead-drop.service               enabledsystemd-readahead-replay.service             enabledtuned.service                                enabledvsftpd.service                               enabledxinetd.service                               enabled正在运行的服务--------------auditd.service           loaded active running Security Auditing Servicecrond.service            loaded active running Command Schedulerdbus.service             loaded active running D-Bus System Message Busdhcpd.service            loaded active running DHCPv4 Server [e-mail]       loaded active running Getty on tty1lvm2-lvmetad.service     loaded active running LVM2 metadata daemonNetworkManager.service   loaded active running Network Managerpolkit.service           loaded active running Authorization Managerpostfix.service          loaded active running Postfix Mail Transport Agentrsyslog.service          loaded active running System Logging Servicesshd.service             loaded active running OpenSSH server daemonsystemd-journald.service loaded active running Journal Servicesystemd-logind.service   loaded active running Login Servicesystemd-udevd.service    loaded active running udev Kernel Device Managertuned.service            loaded active running Dynamic System Tuning Daemonvsftpd.service           loaded active running Vsftpd ftp daemonwpa_supplicant.service   loaded active running WPA Supplicant daemonxinetd.service           loaded active running Xinetd A Powerful Replacement For Inetd############################ 自启动检查 ##########################touch /var/lock/subsys/local############################ 登录检查 ############################root     pts/0        192.168.100.1    Tue Aug  9 23:47   still logged in   root     pts/1        192.168.100.1    Tue Aug  9 23:46   still logged in   root     pts/0        192.168.100.1    Tue Aug  9 23:45 - 23:46  (00:00)    root     pts/0        192.168.100.1    Tue Aug  9 16:46 - 23:45  (06:59)    root     tty1                          Tue Aug  9 00:40   still logged in   reboot   system boot  3.10.0-327.el7.x Tue Aug  9 00:40 - 01:16 (1+00:35)   wtmp begins Tue Aug  9 00:40:43 2016############################ 计划任务检查 ########################-rw-r--r--.  1  root  root  128  Jul  27  2015  /etc/cron.d/0hourly-rwx------.  1  root  root  180  Jul  31  2013  /etc/cron.daily/logrotate-rwxr-xr-x.  1  root  root  332  Dec  3   2015  /etc/cron.daily/0yum-daily.cron-rwxr-xr-x.  1  root  root  618  Mar  18  2014  /etc/cron.daily/man-db.cron-rw-------.  1  root  root  0    Jul  27  2015  /etc/cron.deny-rwxr-xr-x.  1  root  root  362  Dec  3   2015  /etc/cron.hourly/0yum-hourly.cron-rwxr-xr-x.  1  root  root  392  Jul  27  2015  /etc/cron.hourly/0anacron-rw-r--r--.  1  root  root  451  Jun  10  2014  /etc/crontab############################ 用户检查 ############################/etc/passwd 最后修改时间：2016-08-09 16:47:13 (0 天 8 小时前)特权用户--------root用户列表--------用户名  UID  GID  HOME   SHELL      最后一次登录root    0    0    /root  /bin/bash  2016-08-09_23:47:00空密码用户----------相同ID的用户------------############################ 密码检查 ############################密码过期检查------------root            永不过期密码策略检查------------PASS_MAX_DAYS   99999PASS_MIN_DAYS   0PASS_MIN_LEN    5PASS_WARN_AGE   7############################ Sudoers检查 #########################root    ALL=(ALL)   ALL%wheel  ALL=(ALL)   ALL############################ JDK检查 #############################JAVA_HOME=""############################ 防火墙检查 ##########################iptables: inactive/etc/sysconfig/iptables-----------------------############################ SSH检查 #############################服务状态：activeSSH协议版本：2信任主机--------是否允许ROOT远程登录--------------------PermitRootLogin yes/etc/ssh/sshd_config--------------------HostKey /etc/ssh/ssh_host_rsa_keyHostKey /etc/ssh/ssh_host_ecdsa_keyHostKey /etc/ssh/ssh_host_ed25519_keySyslogFacility AUTHPRIVAuthorizedKeysFile  .ssh/authorized_keysPasswordAuthentication yesChallengeResponseAuthentication noGSSAPIAuthentication yesGSSAPICleanupCredentials noUsePAM yesX11Forwarding yesUsePrivilegeSeparation sandbox      # Default for new installations.AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGESAcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENTAcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGEAcceptEnv XMODIFIERSSubsystem   sftp    /usr/libexec/openssh/sftp-server############################ syslog检查 ##########################服务状态：active/etc/rsyslog.conf-----------------*.info;mail.none;authpriv.none;cron.none  /var/log/messagesauthpriv.*                                /var/log/securemail.*                                    -/var/log/maillogcron.*                                    /var/log/cron*.emerg                                   :omusrmsg:*uucp,news.crit                            /var/log/spoolerlocal7.*                                  /var/log/boot.log############################ SNMP检查 ############################服务状态：unknown############################ NTP检查 ######################################################### 软件检查 ############################telnet-0.17-59.el7.x86_64             Tue  09  Aug  2016  11:43:37  PM  CSTsyslinux-tftpboot-4.05-12.el7.x86_64  Tue  09  Aug  2016  05:26:19  PM  CSTsyslinux-4.05-12.el7.x86_64           Tue  09  Aug  2016  05:26:19  PM  CSTmtools-4.0.18-5.el7.x86_64            Tue  09  Aug  2016  05:26:18  PM  CSTftp-0.17-66.el7.x86_64                Tue  09  Aug  2016  05:05:47  PM  CSTtftp-server-5.2-12.el7.x86_64         Tue  09  Aug  2016  04:54:30  PM  CSTtftp-5.2-12.el7.x86_64                Tue  09  Aug  2016  04:54:30  PM  CSTxinetd-2.3.15-12.el7.x86_64           Tue  09  Aug  2016  04:54:24  PM  CSTvsftpd-3.0.2-11.el7_2.x86_64          Tue  09  Aug  2016  04:50:36  PM  CSTgpg-pubkey-f4a80eb5-53a7ff4b          Tue  09  Aug  2016  04:47:13  PM  CST

脚本代码

#!/bin/bash#主机信息每日巡检#version 2016.08.09#当前脚本适用于CentOS/RedHat 6.X、7.X#环境变量PATH没设好，在cron里执行时有很多命令会找不到export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/binsource /etc/profile[ $(id -u) -gt 0 ] && echo "请用root用户执行此脚本！" && exit 1#uploadHostDailyCheckApi="http://10.0.0.1:8080/api/uploadHostDailyCheck"#uploadHostDailyCheckReportApi="http://10.0.0.1:8080/api/uploadHostDailyCheckReport"centosVersion=$(awk '{print $(NF-1)}' /etc/redhat-release)VERSION="2016.08.09"#日志相关PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`[ -f $PROGPATH ] && PROGPATH="."LOGPATH="$PROGPATH/log"[ -e $LOGPATH ] || mkdir $LOGPATHRESULTFILE="$LOGPATH/HostDailyCheck-`hostname`-`date +%Y%m%d`.txt"#定义报表的全局变量report_DateTime=""    #日期 okreport_Hostname=""    #主机名 okreport_OSRelease=""    #发行版本 okreport_Kernel=""    #内核 okreport_Language=""    #语言/编码 okreport_LastReboot=""    #最近启动时间 okreport_Uptime=""    #运行时间（天） okreport_CPUs=""    #CPU数量 okreport_CPUType=""    #CPU类型 okreport_Arch=""    #CPU架构 okreport_MemTotal=""    #内存总容量(MB) okreport_MemFree=""    #内存剩余(MB) okreport_MemUsedPercent=""    #内存使用率% okreport_DiskTotal=""    #硬盘总容量(GB) okreport_DiskFree=""    #硬盘剩余(GB) okreport_DiskUsedPercent=""    #硬盘使用率% okreport_InodeTotal=""    #Inode总量 okreport_InodeFree=""    #Inode剩余 okreport_InodeUsedPercent=""    #Inode使用率 okreport_IP=""    #IP地址 okreport_MAC=""    #MAC地址 okreport_Gateway=""    #默认网关 okreport_DNS=""    #DNS okreport_Listen=""    #监听 okreport_Selinux=""    #Selinux okreport_Firewall=""    #防火墙 okreport_USERs=""    #用户 okreport_USEREmptyPassword=""   #空密码用户 okreport_USERTheSameUID=""      #相同ID的用户 ok report_PasswordExpiry=""    #密码过期（天） okreport_RootUser=""    #root用户 okreport_Sudoers=""    #sudo授权  okreport_SSHAuthorized=""    #SSH信任主机 okreport_SSHDProtocolVersion=""    #SSH协议版本 okreport_SSHDPermitRootLogin=""    #允许root远程登录 okreport_DefunctProsess=""    #僵尸进程数量 okreport_SelfInitiatedService=""    #自启动服务数量 okreport_SelfInitiatedProgram=""    #自启动程序数量 okreport_RuningService=""           #运行中服务数  okreport_Crontab=""    #计划任务数 okreport_Syslog=""    #日志服务 okreport_SNMP=""    #SNMP  OKreport_NTP=""    #NTP okreport_JDK=""    #JDK版本 okfunction version(){    echo ""    echo ""    echo "系统巡检脚本：Version $VERSION"}function getCpuStatus(){    echo ""    echo ""    echo "############################ CPU检查 #############################"    Physical_CPUs=$(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个数:$Physical_CPUs"    echo "逻辑CPU个数:$Virt_CPUs"    echo "每CPU核心数:$CPU_Kernels"    echo "    CPU型号:$CPU_Type"    echo "    CPU架构:$CPU_Arch"    #报表信息    report_CPUs=$Virt_CPUs    #CPU数量    report_CPUType=$CPU_Type  #CPU类型    report_Arch=$CPU_Arch     #CPU架构}function getMemStatus(){    echo ""    echo ""    echo "############################ 内存检查 ############################"    if [[ $centosVersion < 7 ]];then        free -mo    else        free -h    fi    #报表信息    MemTotal=$(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"        #内存总容量(MB)    report_MemFree="$((MemFree/1024))""MB"          #内存剩余(MB)    report_MemUsedPercent="$(awk "BEGIN {if($MemTotal==0){printf 100}else{printf \"%.2f\",$MemUsed*100/$MemTotal}}")""%"   #内存使用率%}function getDiskStatus(){    echo ""    echo ""    echo "############################ 磁盘检查 ############################"    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,"|",$12}'| column -t    #报表信息    diskdata=$(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"   #硬盘总容量(GB)    report_DiskFree=$((diskfree/1024/1024))"GB"     #硬盘剩余(GB)    report_DiskUsedPercent="$diskusedpercent""%"    #硬盘使用率%    report_InodeTotal=$((inodetotal/1000))"K"       #Inode总量    report_InodeFree=$((inodefree/1000))"K"         #Inode剩余    report_InodeUsedPercent="$inodeusedpercent""%"  #Inode使用率%}function getSystemStatus(){    echo ""    echo ""    echo "############################ 系统检查 ############################"    if [ -e /etc/sysconfig/i18n ];then        default_LANG="$(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 "     系统：$OS"    echo " 发行版本：$Release"    echo "     内核：$Kernel"    echo "   主机名：$Hostname"    echo "  SELinux：$SELinux"    echo "语言/编码：$default_LANG"    echo " 当前时间：$(date +'%F %T')"    echo " 最后启动：$LastReboot"    echo " 运行时间：$uptime"    #报表信息    report_DateTime=$(date +"%F %T")  #日期    report_Hostname="$Hostname"       #主机名    report_OSRelease="$Release"       #发行版本    report_Kernel="$Kernel"           #内核    report_Language="$default_LANG"   #语言/编码    report_LastReboot="$LastReboot"   #最近启动时间    report_Uptime="$uptime"           #运行时间（天）    report_Selinux="$SELinux"    export LANG="$default_LANG"}function getServiceStatus(){    echo ""    echo ""    echo "############################ 服务检查 ############################"    echo ""    if [[ $centosVersion > 7 ]];then        conf=$(systemctl list-unit-files --type=service --state=enabled --no-pager | grep "enabled")        process=$(systemctl list-units --type=service --state=running --no-pager | grep ".service")        #报表信息        report_SelfInitiatedService="$(echo "$conf" | wc -l)"       #自启动服务数量        report_RuningService="$(echo "$process" | wc -l)"           #运行中服务数量    else        conf=$(/sbin/chkconfig | grep -E ":on|:启用")        process=$(/sbin/service --status-all 2>/dev/null | grep -E "is running|正在运行")        #报表信息        report_SelfInitiatedService="$(echo "$conf" | wc -l)"       #自启动服务数量        report_RuningService="$(echo "$process" | wc -l)"           #运行中服务数量    fi    echo "服务配置"    echo "--------"    echo "$conf"  | column -t    echo ""    echo "正在运行的服务"    echo "--------------"    echo "$process"}function getAutoStartStatus(){    echo ""    echo ""    echo "############################ 自启动检查 ##########################"    conf=$(grep -v "^#" /etc/rc.d/rc.local| sed '/^$/d')    echo "$conf"    #报表信息    report_SelfInitiatedProgram="$(echo $conf | wc -l)"    #自启动程序数量}function getLoginStatus(){    echo ""    echo ""    echo "############################ 登录检查 ############################"    last | head}function getNetworkStatus(){    echo ""    echo ""    echo "############################ 网络检查 ############################"    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 "网关：$GATEWAY "    echo " DNS：$DNS"    #报表信息    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="$GATEWAY"  #默认网关    report_DNS="$DNS"          #DNS}function getListenStatus(){    echo ""    echo ""    echo "############################ 监听检查 ############################"    TCPListen=$(ss -ntul | column -t)    echo "$TCPListen"    #报表信息    report_Listen="$(echo "$TCPListen"| sed '1d' | awk '/tcp/ {print $5}' | awk -F: '{print $NF}' | sort | uniq | wc -l)"}function getCronStatus(){    echo ""    echo ""    echo "############################ 计划任务检查 ########################"    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 $user | wc -l)                echo ""            fi        done    done    #计划任务    find /etc/cron* -type f | xargs -i ls -l {} | column  -t    let Crontab=Crontab+$(find /etc/cron* -type f | wc -l)    #报表信息    report_Crontab="$Crontab"    #计划任务数}function getHowLongAgo(){    # 计算一个时间戳离现在有多久了    datetime="$*"    [ -z "$datetime" ] && echo "错误的参数：getHowLongAgo() $*"    Timestamp=$(date +%s -d "$datetime")    #转化为时间戳    Now_Timestamp=$(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 小时前"}function getUserLastLogin(){    # 获取用户最近一次登录的时间，含年份    # 很遗憾last命令不支持显示年份，只有"last -t YYYYMMDDHHMMSS"表示某个时间之间的登录，我    # 们只能用最笨的方法了，对比今天之前和今年元旦之前（或者去年之前和前年之前……）某个用户    # 登录次数，如果登录统计次数有变化，则说明最近一次登录是今年。    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 "从未登录过"            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=$((thisYear-1))        fi    done}function getUserStatus(){    echo ""    echo ""    echo "############################ 用户检查 ############################"    #/etc/passwd 最后修改时间    pwdfile="$(cat /etc/passwd)"    Modify=$(stat /etc/passwd | grep Modify | tr '.' ' ' | awk '{print $2,$3}')    echo "/etc/passwd 最后修改时间：$Modify ($(getHowLongAgo $Modify))"    echo ""    echo "特权用户"    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 "用户列表"    echo "--------"    USERs=0    echo "$(    echo "用户名 UID GID HOME SHELL 最后一次登录"    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 "空密码用户"    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,"$r            fi        done        done    echo ""    echo "相同ID的用户"    echo "------------"    USERTheSameUID=""    UIDs=$(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 $r,"    done    #报表信息    report_USERs="$USERs"    #用户    report_USEREmptyPassword=$(echo $USEREmptyPassword | sed 's/^,//')     report_USERTheSameUID=$(echo $USERTheSameUID | sed 's/,$//')     report_RootUser=$(echo $RootUser | sed 's/^,//')    #特权用户}function getPasswordStatus {    echo ""    echo ""    echo "############################ 密码检查 ############################"    pwdfile="$(cat /etc/passwd)"    echo ""    echo "密码过期检查"    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 永不过期\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天后过期\n" $user $DAYS                result="$result,$user:$DAYS days"            fi        done    done    report_PasswordExpiry=$(echo $result | sed 's/^,//')    echo ""    echo "密码策略检查"    echo "------------"    grep -v "#" /etc/login.defs | grep -E "PASS_MAX_DAYS|PASS_MIN_DAYS|PASS_MIN_LEN|PASS_WARN_AGE"}function getSudoersStatus(){    echo ""    echo ""    echo "############################ Sudoers检查 #########################"    conf=$(grep -v "^#" /etc/sudoers| grep -v "^Defaults" | sed '/^$/d')    echo "$conf"    echo ""    #报表信息    report_Sudoers="$(echo $conf | wc -l)"}function getInstalledStatus(){    echo ""    echo ""    echo "############################ 软件检查 ############################"    rpm -qa --last | head | column -t }function getProcessStatus(){    echo ""    echo ""    echo "############################ 进程检查 ############################"    if [ $(ps -ef | grep defunct | grep -v grep | wc -l) -ge 1 ];then        echo ""        echo "僵尸进程";        echo "--------"        ps -ef | head -n1        ps -ef | grep defunct | grep -v grep    fi    echo ""    echo "内存占用TOP10"    echo "-------------"    echo -e "PID %MEM RSS COMMAND    $(ps aux | awk '{print $2, $4, $6, $11}' | sort -k3rn | head -n 10 )"| column -t     echo ""    echo "CPU占用TOP10"    echo "------------"    top b -n1 | head -17 | tail -11    #报表信息    report_DefunctProsess="$(ps -ef | grep defunct | grep -v grep|wc -l)"}function getJDKStatus(){    echo ""    echo ""    echo "############################ JDK检查 #############################"    java -version 2>/dev/null    if [ $? -eq 0 ];then        java -version 2>&1    fi    echo "JAVA_HOME=\"$JAVA_HOME\""    #报表信息    report_JDK="$(java -version 2>&1 | grep version | awk '{print $1,$3}' | tr -d '"')"}function getSyslogStatus(){    echo ""    echo ""    echo "############################ syslog检查 ##########################"    echo "服务状态：$(getState rsyslog)"    echo ""    echo "/etc/rsyslog.conf"    echo "-----------------"    cat /etc/rsyslog.conf 2>/dev/null | grep -v "^#" | grep -v "^\\$" | sed '/^$/d'  | column -t    #报表信息    report_Syslog="$(getState rsyslog)"}function getFirewallStatus(){    echo ""    echo ""    echo "############################ 防火墙检查 ##########################"    #防火墙状态，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: $s"    echo ""    echo "/etc/sysconfig/iptables"    echo "-----------------------"    cat /etc/sysconfig/iptables 2>/dev/null    #报表信息    report_Firewall="$s"}function getSNMPStatus(){    #SNMP服务状态，配置等    echo ""    echo ""    echo "############################ SNMP检查 ############################"    status="$(getState snmpd)"    echo "服务状态：$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 '/^$/d'    fi    #报表信息    report_SNMP="$(getState snmpd)"}function getState(){    if [[ $centosVersion < 7 ]];then        if [ -e "/etc/init.d/$1" ];then            if [ `/etc/init.d/$1 status 2>/dev/null | grep -E "is running|正在运行" | wc -l` -ge 1 ];then                r="active"            else                r="inactive"            fi        else            r="unknown"        fi    else        #CentOS 7+        r="$(systemctl is-active $1 2>&1)"    fi    echo "$r"}function getSSHStatus(){    #SSHD服务状态，配置,受信任主机等    echo ""    echo ""    echo "############################ SSH检查 #############################"    #检查受信任主机    pwdfile="$(cat /etc/passwd)"    echo "服务状态：$(getState sshd)"    Protocol_Version=$(cat /etc/ssh/sshd_config | grep Protocol | awk '{print $2}')    echo "SSH协议版本：$Protocol_Version"    echo ""    echo "信任主机"    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 授权 \"$authorized_host\" 无密码访问"        fi        let authorized=authorized+$(cat $authorize_file 2>/dev/null | awk '{print $3}'|wc -l)    done    echo ""    echo "是否允许ROOT远程登录"    echo "--------------------"    config=$(cat /etc/ssh/sshd_config | grep PermitRootLogin)    firstChar=${config:0:1}    if [ $firstChar == "#" ];then        PermitRootLogin="yes"  #默认是允许ROOT远程登录的    else        PermitRootLogin=$(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'    #报表信息    report_SSHAuthorized="$authorized"    #SSH信任主机    report_SSHDProtocolVersion="$Protocol_Version"    #SSH协议版本    report_SSHDPermitRootLogin="$PermitRootLogin"    #允许root远程登录}function getNTPStatus(){    #NTP服务状态，当前时间，配置等    echo ""    echo ""    echo "############################ NTP检查 #############################"    if [ -e /etc/ntp.conf ];then        echo "服务状态：$(getState ntpd)"        echo ""        echo "/etc/ntp.conf"        echo "-------------"        cat /etc/ntp.conf 2>/dev/null | grep -v "^#" | sed '/^$/d'    fi    #报表信息    report_NTP="$(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 check(){    version    getSystemStatus    getCpuStatus    getMemStatus    getDiskStatus    getNetworkStatus    getListenStatus    getProcessStatus    getServiceStatus    getAutoStartStatus    getLoginStatus    getCronStatus    getUserStatus    getPasswordStatus    getSudoersStatus    getJDKStatus    getFirewallStatus    getSSHStatus    getSyslogStatus    getSNMPStatus    getNTPStatus    getInstalledStatus}#执行检查并保存检查结果check > $RESULTFILEecho "检查结果：$RESULTFILE"#上传检查结果的文件#curl -F "filename=@$RESULTFILE" "$uploadHostDailyCheckApi" 2>/dev/null#上传检查结果的报表#uploadHostDailyCheckReport 1>/dev/null

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