我常用的主机监控shell脚本

  下面是我常用的几个主机监控的脚本，大家可以根据自己的情况在进行修改，希望能给大家一点帮助。

 1、查看主机网卡流量

 

#!/bin/bash

#network

#Mike.Xu

while : ; do

      time='date +%m"-"%d" "%k":"%M'

      day='date +%m"-"%d'

      rx_before='ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-'

      tx_before='ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-'

      sleep 2

      rx_after='ifconfig eth0|sed -n "8"p|awk '{print $2}'|cut -c7-'

      tx_after='ifconfig eth0|sed -n "8"p|awk '{print $6}'|cut -c7-'

      rx_result=$[(rx_after-rx_before)/256]

      tx_result=$[(tx_after-tx_before)/256]

      echo "$time Now_In_Speed: "$rx_result"kbps Now_OUt_Speed: "$tx_result"kbps"

      sleep 2

done

 

2、系统状况监控

 

#!/bin/sh

#systemstat.sh

#Mike.Xu

IP=192.168.1.227

top -n 2| grep "Cpu" >>./temp/cpu.txt

free -m | grep "Mem" >> ./temp/mem.txt

df -k | grep "sda1" >> ./temp/drive_sda1.txt

#df -k | grep sda2 >> ./temp/drive_sda2.txt

df -k | grep "/mnt/storage_0" >> ./temp/mnt_storage_0.txt

df -k | grep "/mnt/storage_pic" >> ./temp/mnt_storage_pic.txt

time=`date +%m"."%d" "%k":"%M`

connect=`netstat -na | grep "219.238.148.30:80" | wc -l`

echo "$time  $connect" >> ./temp/connect_count.txt

 

 

 

3、监控主机的磁盘空间,当使用空间超过90％就通过发mail来发警告

 

#!/bin/bash

#monitor available disk space

SPACE='df | sed -n '/ \ / $ / p' | gawk '{print $5}' | sed  's/%//'

if [ $SPACE -ge 90 ]

then

[e-mail]

fi

 

4、 监控CPU和内存的使用情况

 

#!/bin/bash

#script  to capture system statistics

OUTFILE=/home/xu/capstats.csv

DATE='date +%m/%d/%Y'

TIME='date +%k:%m:%s'

TIMEOUT='uptime'

VMOUT='vmstat 1 2'

 USERS='echo $TIMEOUT | gawk '{print $4}' '

LOAD='echo $TIMEOUT | gawk '{print $9}' | sed "s/,//' '

FREE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' | gawk '{print $4} ' '

IDLE='echo  $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' |gawk '{print $15}' '

echo "$DATE,$TIME,$USERS,$LOAD,$FREE,$IDLE" >> $OUTFILE

 

5、全方位监控主机

 

#!/bin/bash

# check_xu.sh

# 0 * * * * /home/check_xu.sh

 

DAT="`date +%Y%m%d`"

HOUR="`date +%H`"

DIR="/home/oslog/host_${DAT}/${HOUR}"

DELAY=60

COUNT=60

# whether the responsible directory exist

if ! test -d ${DIR}

then

        /bin/mkdir -p ${DIR}

fi

# general check

export TERM=linux

/usr/bin/top -b -d ${DELAY} -n ${COUNT} > ${DIR}/top_${DAT}.log 2>&1 &

# cpu check

/usr/bin/sar -u ${DELAY} ${COUNT} > ${DIR}/cpu_${DAT}.log 2>&1 &

#/usr/bin/mpstat -P 0 ${DELAY} ${COUNT} > ${DIR}/cpu_0_${DAT}.log 2>&1 &

#/usr/bin/mpstat -P 1 ${DELAY} ${COUNT} > ${DIR}/cpu_1_${DAT}.log 2>&1 &

# memory check

/usr/bin/vmstat ${DELAY} ${COUNT} > ${DIR}/vmstat_${DAT}.log 2>&1 &

# I/O check

/usr/bin/iostat ${DELAY} ${COUNT} > ${DIR}/iostat_${DAT}.log 2>&1 &

# network check

/usr/bin/sar -n DEV ${DELAY} ${COUNT} > ${DIR}/net_${DAT}.log 2>&1 &

#/usr/bin/sar -n EDEV ${DELAY} ${COUNT} > ${DIR}/net_edev_${DAT}.log 2>&1 &

 

 

   放在crontab里每小时自动执行：

0 * * * * /home/check_xu.sh

 

   这样会在/home/oslog/host_yyyymmdd/hh目录下生成各小时cpu、内存、网络，IO的统计数据。

 

   如果某个时间段产生问题了，就可以去看对应的日志信息，看看当时的主机性能如何。

快速查看服务器硬件配置信息

16 May 2013

作者：Mike.Xu 发表于: May 16, 2013 11:47 AM
转载时请务必以超链接形式标明文章 原始出处和作者信息及本版权声明。
链接：http://www.dbasky.net/archives/2013/05/post-15.html
通过shell脚本查看服务器的硬件信息和系统的版本信息等情况
#!/bin/bash
if [[ -f /usr/bin/lsb_release ]]; then
OS=$(/usr/bin/lsb_release -a |grep Description |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
else
OS=$(cat /etc/issue |sed -n '1p')
fi
OS_version=$(uname -m)
kernel_version=$(uname -r)
CPU=$(grep 'model name' /proc/cpuinfo |uniq |awk -F : '{print $2}' |sed 's/^[ \t]*//g'  |sed 's/ \+/ /g')
Counts=$(grep 'physical id' /proc/cpuinfo |sort |uniq |wc -l)
Cores=$(grep 'cpu cores' /proc/cpuinfo |uniq |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
PROCESSOR=$(grep 'processor' /proc/cpuinfo |sort |uniq |wc -l)
Mode=$(getconf LONG_BIT)
 
Numbers=$(grep 'lm' /proc/cpuinfo |wc -l)
if (( ${Numbers} > 0)); then lm=64
else lm=32
fi
 
Total=$(cat /proc/meminfo |grep 'MemTotal' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
Number=$(dmidecode | grep -A16 "Memory Device$" |grep Size|sort |sed 's/^[ \t]*//g')
SwapTotal=$(cat /proc/meminfo |grep 'SwapTotal' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
Buffers=$(cat /proc/meminfo |grep 'Buffers' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
Cached=$(cat /proc/meminfo |grep '\<Cached\>' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
Available=$(free -m |grep - |awk -F : '{print $2}' |awk '{print $2}')
Max_Capacity=$(dmidecode -t memory -q |grep 'Maximum Capacity' |awk -F : '{print $2}' |sed 's/^[ \t]*//g')
 
Disk=$(fdisk -l |grep 'Disk' |awk -F , '{print $1}')
Partion=$(df -hlP |sed -n '2,$p')
 
Line='==========='
 
echo -e "${Line}\nOS:\n${OS}\n${Line}"
echo -e "OS_version:\n${OS_version}\n${Line}"
echo -e "Kernel_version:\n${kernel_version}\n${Line}"
echo -e "CPU model:\n${CPU}\n${Line}"
echo -e "Total of physical CPU:\n${Counts}\n${Line}"
echo -e "Number of CPU cores\n${Cores}\n${Line}"
echo -e "Number of logical CPUs:\n${PROCESSOR}\n${Line}"
echo -e "Present Mode Of CPU:\n${Mode}\n${Line}"
echo -e "Support Mode Of CPU:\n${lm}\n${Line}"
echo -e "Total Memory:\n${Total}\n${Line}"
echo -e "Total Swap:\n${SwapTotal}\n${Line}"
echo -e "Buffers:\n${Buffers}\n${Line}"
echo -e "Cached:\n${Cached}\n${Line}"
echo -e "Available Memory:\n${Available} MB\n${Line}"
echo -e "Maxinum Memory Capacity:\n${Max_Capacity}\n${Line}"
echo -e "Number of Physical Memory:\n${Number}\n${Line}"
echo -e "Amount Of Disks:\n${Disk}\n${Line}"
echo -e "Usage Of partions:\n${Partion}\n${Line}"

LINUX简单安装配置FTP

26 Jun 2013

linux下最常用的ftp服务器是VSFTPD

安装vsftpd

yum install -y vsftpd
touch /var/log/vsftpd.log # 创建vsftp的日志文件

启动vsftpd服务

/etc/init.d/vsftpd start

配置vsftpd服务器

vi /etc/vsftpd/vsftpd.conf

将

#chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list

改为

chroot_list_enable=YES
# (default follows)
chroot_list_file=/etc/vsftpd/chroot_list

增加用户ftpuser
useradd -d /home/ftpuser -g ftp -s /sbin/nologin ftpuser
passwd ftpuser

vi /etc/vsftpd/chroot_list
ftpuser

/etc/init.d/vsftpd restart

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