背景:
服务器被黑后,一直有进程占用大量cpu,top命令无法显示找出相关进程。怀疑系统命令被替换,随后用sysdig排查问题。
sysdig https://support.sysdig.com
安装:
rpm --import https://s3.amazonaws.com/download.draios.com/DRAIOS-GPG-KEY.public
curl -s -o /etc/yum.repos.d/draios.repo http://download.draios.com/stable/rpm/draios.repo
yum list dkms
rpm -i http://mirror.us.leaseweb.net/epel/6/i386/epel-release-6-8.noarch.rpm
yum -y install kernel-devel-$(uname -r) #可能安装失败,直接安装相似的软件 yum list kernel-devel-*
yum -y install sysdig
报错提示解决error opening device /dev/sysdig0. Make sure you have root credentials and that the sysdig-probe module is loaded.
sysdig-probe-loader
使用:
简单集成界面
csysdig
#查看进程占用cpu 情况
sysdig -c topprocs_cpu
#查看占用网络带宽最多的进程
sysdig -c topprocs_net
#查看使用硬盘带宽最多的进程:
sysdig -c topprocs_file
参考
https://yq.aliyun.com/ziliao/65685
https://github.com/draios/sysdig
来源:oschina
链接:https://my.oschina.net/u/4258911/blog/3962866