ubuntu维护

一、关闭自动更新

vim /etc/apt/apt.conf.d/20auto-upgrades 
APT::Periodic::Update-Package-Lists "0";    # 禁止自动更新软件包列表
APT::Periodic::Unattended-Upgrade "0";      # 禁止自动安装更新

 二、iscsi安装群晖NAS Lun

     第一步：群晖NAS配置：新建LUN

   第二步：客户端配置

2.1安装客户端
 apt install -y open-iscsi 
2.2查看可用的iscsi LUN
root@k8s-master-1:~# iscsiadm -m discovery -t sendtargets -p 10.10.160.1

10.10.10.13:3260,1 iqn.2000-01.com.synology:Synology.Target-1.1372de0fefd
10.10.160.1:3260,1 iqn.2000-01.com.synology:Synology.Target-1.1372de0fefd

2.3配置CHAP-单向验证（vim /etc/iscsi/iscsid.conf)

# To set a CHAP username and password for initiator
# authentication by the target(s), uncomment the following lines:
node.session.auth.username = XXXX
node.session.auth.password = XXXX

2.4登录
iscsiadm -m node -T iqn.2000-01.com.synology:Synology.Target-1.1372de0fefd -p 10.10.160.1:3260 --login

2.5设置开机挂载
iscsiadm -m node –T iqn.2000-01.com.synology:Synology.Target-1.1372de0fefd -p 10.10.160.1:3260  --op update -n node.startup -v automatic

2.6查看fdisk配置文件系统：

2.7创建分区fdisk /dev/sdbroot@k8s-master-1:/# mkfs.xfs /dev/sdb1
meta-data=/dev/sdb1              isize=512    agcount=4, agsize=67108800 blks

   挂载文件
   mkdir /mnt/iscsi
 mount /dev/sdb1 /mnt/iscsi
 开机自动挂载：
 echo "UUID=ea8c5bea-add6-4aed-a179-2c28f91080e0 /nas-data xfs defaults,_netdev 0 0" | tee -a /etc/fstab