#化鲲为鹏，我有话说# 鲲鹏服务器信息巡检脚本
【摘要】 一、背景目前使用华为云鲲鹏服务器，对登录一个系统，快速查看其系统信息，检查系统各项指标及参数，编写系统快速检查脚本，输出系统信息到脚本运行的logs目录下。二、脚本git地址#!/bin/bash# auth:kaliarch# func:sys info check# version:v1.0# sys:centos6.x/7.x[ $(id -u) -gt 0 ] && echo "请用...
一、背景
目前使用华为云鲲鹏服务器，对登录一个系统，快速查看其系统信息，检查系统各项指标及参数，编写系统快速检查脚本，输出系统信息到脚本运行的logs目录下。
二、脚本
#!/bin/bash
# auth:kaliarch
# func:sys info check
# version:v1.0
# sys:centos6.x/7.x
[ $(id -u) -gt 0 ] && echo "请用root用户执行此脚本！" && exit 1
sysversion=$(rpm -q centos-release|cut -d- -f3)
line="-------------------------------------------------"
[ -d logs ] || mkdir logs
sys_check_file="logs/$(ip a show dev eth0|grep -w inet|awk '{print $2}'|awk -F '/' '{print $1}')-`date +%Y%m%d`.txt"
# 获取系统cpu信息
function get_cpu_info() {
Physical_CPUs=$(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)
cat <<EOF | column -t
CPU信息:
物理CPU个数: $Physical_CPUs
逻辑CPU个数: $Virt_CPUs
每CPU核心数: $CPU_Kernels
CPU型号: $CPU_Type
CPU架构: $CPU_Arch
EOF
}
# 获取系统内存信息
function get_mem_info() {
check_mem=$(free -m)
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%
cat <<EOF
内存信息：
${check_mem}
EOF
}
# 获取系统网络信息
function get_net_info() {
pri_ipadd=$(ip a show dev eth0|grep -w inet|awk '{print $2}'|awk -F '/' '{print $1}')
pub_ipadd=$(curl ifconfig.me -s)
gateway=$(ip route | grep default | awk '{print $3}')
mac_info=$(ip link| egrep -v "lo"|grep link|awk '{print $2}')
dns_config=$(egrep -v "^$|^#" /etc/resolv.conf)
route_info=$(route -n)
cat <<EOF | column -t
IP信息:
系统公网地址: ${pub_ipadd}
系统私网地址: ${pri_ipadd}
网关地址: ${gateway}
MAC地址: ${mac_info}
路由信息:
${route_info}
DNS 信息:
${dns_config}
EOF
}
# 获取系统磁盘信息
function get_disk_info() {
disk_info=$(fdisk -l|grep "Disk /dev"|cut -d, -f1)
disk_use=$(df -hTP|awk '$2!="tmpfs"{print}')
disk_inode=$(df -hiP|awk '$1!="tmpfs"{print}')
cat <<EOF
磁盘信息:
${disk_info}
磁盘使用:
${disk_use}
inode信息:
${disk_inode}
EOF
}
# 获取系统信息
function get_systatus_info() {
sys_os=$(uname -o)
sys_release=$(cat /etc/redhat-release)
sys_kernel=$(uname -r)
sys_hostname=$(hostname)
sys_selinux=$(getenforce)
sys_lang=$(echo $LANG)
sys_lastreboot=$(who -b | awk '{print $3,$4}')
sys_runtime=$(uptime |awk '{print $3,$4}'|cut -d, -f1)
sys_time=$(date)
sys_load=$(uptime |cut -d: -f5)
cat <<EOF | column -t
系统信息:
系统: ${sys_os}
发行版本: ${sys_release}
系统内核: ${sys_kernel}
主机名: ${sys_hostname}
selinux状态: ${sys_selinux}
系统语言: ${sys_lang}
系统当前时间: ${sys_time}
系统最后重启时间: ${sys_lastreboot}
系统运行时间: ${sys_runtime}
系统负载: ${sys_load}
EOF
}
# 获取服务信息
function get_service_info() {
port_listen=$(netstat -lntup|grep -v "Active Internet")
kernel_config=$(sysctl -p 2>/dev/null)
if [ ${sysversion} -gt 6 ];then
service_config=$(systemctl list-unit-files --type=service --state=enabled|grep "enabled")
run_service=$(systemctl list-units --type=service --state=running |grep ".service")
else
service_config=$(/sbin/chkconfig | grep -E ":on|:启用" |column -t)
run_service=$(/sbin/service --status-all|grep -E "running")
fi
cat <<EOF
服务启动配置:
${service_config}
${line}
运行的服务:
${run_service}
${line}
监听端口:
${port_listen}
${line}
内核参考配置:
${kernel_config}
EOF
}
function get_sys_user() {
login_user=$(awk -F: '{if ($NF=="/bin/bash") print $0}' /etc/passwd)
ssh_config=$(egrep -v "^#|^$" /etc/ssh/sshd_config)
sudo_config=$(egrep -v "^#|^$" /etc/sudoers |grep -v "^Defaults")
host_config=$(egrep -v "^#|^$" /etc/hosts)
crond_config=$(for cronuser in /var/spool/cron/* ;do ls ${cronuser} 2>/dev/null|cut -d/ -f5;egrep -v "^$|^#" ${cronuser} 2>/dev/null;echo "";done)
cat <<EOF
系统登录用户:
${login_user}
${line}
ssh 配置信息:
${ssh_config}
${line}
sudo 配置用户:
${sudo_config}
${line}
定时任务配置:
${crond_config}
${line}
hosts 信息:
${host_config}
EOF
}
function process_top_info() {
top_title=$(top -b n1|head -7|tail -1)
cpu_top10=$(top b -n1 | head -17 | tail -10)
mem_top10=$(top -b n1|head -17|tail -10|sort -k10 -r)
cat <<EOF
CPU占用top10:
${top_title}
${cpu_top10}
内存占用top10:
${top_title}
${mem_top10}
EOF
}
function sys_check() {
get_cpu_info
echo ${line}
get_mem_info
echo ${line}
get_net_info
echo ${line}
get_disk_info
echo ${line}
get_systatus_info
echo ${line}
get_service_info
echo ${line}
get_sys_user
echo ${line}
process_top_info
}
sys_check > ${sys_check_file}三、测试
鲲鹏服务器测试
采集鲲鹏服务器信息
CPU信息: 物理CPU个数: 0 逻辑CPU个数: 2 每CPU核心数: CPU型号: CPU架构: aarch64 ------------------------------------------------- 内存信息： total used free shared buff/cache available Mem: 3482 393 2081 20 1007 2514 Swap: 0 0 0 ------------------------------------------------- IP信息: 系统公网地址: 121.36.1.227 系统私网地址: 192.168.0.17 网关地址: 192.168.0.1 MAC地址: fa:16:3e:50:d8:50 02:42:9b:e4:84:bd d6:77:f9:49:14:8f 路由信息: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 eth0 169.254.169.254 192.168.0.1 255.255.255.255 UGH 100 0 0 eth0 172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0 192.168.0.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0 DNS 信息: search openstacklocal nameserver 100.125.1.250 nameserver 100.125.129.250 options single-request-reopen ------------------------------------------------- 磁盘信息: Disk /dev/vda: 42.9 GB Disk /dev/vdb: 107.4 GB 磁盘使用: Filesystem Type Size Used Avail Use% Mounted on devtmpfs devtmpfs 1.7G 0 1.7G 0% /dev /dev/vda2 ext4 39G 3.4G 33G 10% / /dev/vda1 vfat 1022M 7.7M 1015M 1% /boot/efi overlay overlay 39G 3.4G 33G 10% /var/lib/docker/overlay2/6fde1851846f50e525be6b6fc104715c604c66b38f5d9e640f403dbc95f54def/merged inode信息: Filesystem Inodes IUsed IFree IUse% Mounted on devtmpfs 28K 303 27K 2% /dev /dev/vda2 2.5M 78K 2.4M 4% / /dev/vda1 0 0 0 - /boot/efi overlay 2.5M 78K 2.4M 4% /var/lib/docker/overlay2/6fde1851846f50e525be6b6fc104715c604c66b38f5d9e640f403dbc95f54def/merged ------------------------------------------------- 系统信息: 系统: GNU/Linux 发行版本: CentOS Linux release 7.4.1708 (AltArch) 系统内核: 4.14.0-115.5.1.el7a.aarch64 主机名: ecs-kc1-large-2-linux-20191111131638 selinux状态: Disabled 系统语言: en_US.UTF-8 系统当前时间: Wed Nov 13 17:53:35 CST 2019 系统最后重启时间: 2019-11-11 13:18 系统运行时间: 2 days 系统负载: 0.00, 0.00, 0.00 ------------------------------------------------- 服务启动配置: atd.service enabled auditd.service enabled autovt@.service enabled cloud-config.service enabled cloud-final.service enabled cloud-init-local.service enabled cloud-init.service enabled crond.service enabled dbus-org.freedesktop.NetworkManager.service enabled dbus-org.freedesktop.nm-dispatcher.service enabled docker.service enabled getty@.service enabled irqbalance.service enabled kdump.service enabled lvm2-monitor.service enabled NetworkManager-dispatcher.service enabled NetworkManager.service enabled ntpd.service enabled postfix.service enabled rsyslog.service enabled sshd.service enabled systemd-readahead-collect.service enabled systemd-readahead-drop.service enabled systemd-readahead-replay.service enabled tuned.service enabled ------------------------------------------------- 运行的服务: atd.service loaded active running Job spooling tools auditd.service loaded active running Security Auditing Service cloudResetPwdUpdateAgent.service loaded active running LSB: @app.long.name@ containerd.service loaded active running containerd container runtime crond.service loaded active running Command Scheduler dbus.service loaded active running D-Bus System Message Bus denyhosts.service loaded active running LSB: denyhosts docker.service loaded active running Docker Application Container Engine getty@tty1.service loaded active running Getty on tty1 irqbalance.service loaded active running irqbalance daemon lvm2-lvmetad.service loaded active running LVM2 metadata daemon NetworkManager.service loaded active running Network Manager ntpd.service loaded active running Network Time Service polkit.service loaded active running Authorization Manager postfix.service loaded active running Postfix Mail Transport Agent rsyslog.service loaded active running System Logging Service serial-getty@ttyAMA0.service loaded active running Serial Getty on ttyAMA0 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 ------------------------------------------------- 监听端口: Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1293/sshd tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 990/master tcp 0 0 0.0.0.0:6379 0.0.0.0:* LISTEN 7695/./src/redis-se tcp6 0 0 :::80 :::* LISTEN 9992/docker-proxy tcp6 0 0 :::22 :::* LISTEN 1293/sshd tcp6 0 0 ::1:25 :::* LISTEN 990/master tcp6 0 0 :::6379 :::* LISTEN 7695/./src/redis-se udp 0 0 0.0.0.0:7945 0.0.0.0:* 621/dhclient udp 0 0 0.0.0.0:68 0.0.0.0:* 621/dhclient udp 0 0 172.17.0.1:123 0.0.0.0:* 548/ntpd udp 0 0 192.168.0.17:123 0.0.0.0:* 548/ntpd udp 0 0 127.0.0.1:123 0.0.0.0:* 548/ntpd udp 0 0 0.0.0.0:123 0.0.0.0:* 548/ntpd udp6 0 0 fe80::d477:f9ff:fe4:123 :::* 548/ntpd udp6 0 0 fe80::42:9bff:fee4::123 :::* 548/ntpd udp6 0 0 fe80::f816:3eff:fe5:123 :::* 548/ntpd udp6 0 0 ::1:123 :::* 548/ntpd udp6 0 0 :::123 :::* 548/ntpd udp6 0 0 :::58458 :::* 621/dhclient ------------------------------------------------- 内核参考配置: ------------------------------------------------- 系统登录用户: root:x:0:0:root:/root:/bin/bash ------------------------------------------------- ssh 配置信息: 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 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 PermitRootLogin yes PasswordAuthentication yes UseDNS no ------------------------------------------------- sudo 配置用户: root ALL=(ALL) ALL %wheel ALL=(ALL) ALL ------------------------------------------------- 定时任务配置: ------------------------------------------------- hosts 信息: ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 127.0.0.1 localhost localhost 127.0.0.1 ecs-kc1-large-2-linux-20191111131638 ecs-kc1-large-2-linux-20191111131638 ------------------------------------------------- CPU占用top10: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 20 0 9536 8192 4224 S 0.0 0.2 0:02.49 systemd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H 6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq 7 root 20 0 0 0 0 S 0.0 0.0 0:00.12 ksoftirqd/0 8 root 20 0 0 0 0 I 0.0 0.0 0:19.98 rcu_sched 9 root 20 0 0 0 0 I 0.0 0.0 0:00.00 rcu_bh 10 root rt 0 0 0 0 S 0.0 0.0 0:00.02 migration/0 11 root rt 0 0 0 0 S 0.0 0.0 0:00.14 watchdog/0 12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0 内存占用top10: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 20 0 9536 8192 4224 S 0.0 0.2 0:02.49 systemd 8 root 20 0 0 0 0 I 0.0 0.0 0:19.98 rcu_sched 11 root rt 0 0 0 0 S 0.0 0.0 0:00.14 watchdog/0 7 root 20 0 0 0 0 S 0.0 0.0 0:00.12 ksoftirqd/0 10 root rt 0 0 0 0 S 0.0 0.0 0:00.02 migration/0 9 root 20 0 0 0 0 I 0.0 0.0 0:00.00 rcu_bh 6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq 4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
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