Sunday Blog

人生是一场刻意练习

Ubuntu 22.04 安装 Wireguard

Ubuntu 22.04 Install Wireguard

环境 wireguard服务器： 外网 网卡接口：ens192 IP: 139.38.120.136 内网 网卡接口：ens160 IP: 192.168.77.3 wireguard网段： 10.78.0.0/24 注：不可与双方内网网段重

Posted by BlueFat on Sunday, December 31, 2023

Sftp 多用户不同权限配置

Sftp Mutil Directory Permissions

sftp 多用户，多目录不同权限设置 sftp配置多用户, 设置权限只能访问自己的目录, 显示家目录为/ OS: Centos7 显示路径为/ useradd -g 用户组 -d 指定家目录 -s shell

Posted by BlueFat on Saturday, December 30, 2023

minio + picgo 自建图床

minio + picgo 自建图床

obsidian安装插件实现贴入图片自动上传到图床 安装 mkdir -p /data/minio/{data,config} docker 运行 docker run \ -p 9000:9000 \ -p 9090:9090 \ --name minio \ -d --restart=always \ -e "MINIO_ROOT_USER=admin" \ -e "MINIO_ROOT_PASSWORD=admin_password" \ -v /data/minio/data:/data \ -v /data/minio/config:/root/.minio \ minio/minio \ server /data --console-address ":9090" docker-compose 运行 version:

Posted by BlueFat on Monday, November 27, 2023

kube-flannel cni failed to find plugin "bridge" in path [/opt/cni/bin]错误

kube-flannel cni failed to find plugin "bridge" in path [/opt/cni/bin]

安装kube-flannel网络插件后,发现新建pod一直在创建中，一开始还以为是镜像拉不下来, 查看日志才发现是缺少bridge插件 root@k8s-master01:~# kubectl get pod

Posted by BlueFat on Thursday, November 23, 2023

kube-flannel pod 不断重启

kube-flannel always restaring

wget https://raw.githubusercontent.com/flannel-io/flannel/master/Documentation/kube-flannel.yml 安装flannel网络插件后发现pod不断在重启 STATUS状态重复这几种变化 Runnging、Complete、CrashLoopBa

Posted by BlueFat on Thursday, November 23, 2023

Raid Disk Health Check

Raid Disk Health Check

磁盘阵列卡检测与监控硬盘健康状况 常用软件 MegeRAID Hard Disk Sentinel 一般地，支持RAID 5的卡，我们称其为阵列卡，都可以使用LSI官方提供的MegaCli工具来

Posted by BlueFat on Thursday, September 14, 2023

Dingtalk Shell 脚本

Dingtalk Shell

#!/bin/bash export PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:$PATH" # 钉钉关键词: 20, ERROR, INFO, WARN title="Dingtalk Test" content="Hello" atMobiles=("156xxx") atUserIds=() isAtAll="False" dingtalk_text(){ webhook_url='https://oapi.dingtalk.com/robot/send?access_token=097cxxxxxxxxxxxxxxxxxxxc924' current_time=$(date +"%Y-%m-%d %H:%M:%S") if [[ $content != "" ]];then title_date="【$(hostname) $title】 $current_time" message="{ \"msgtype\": \"text\",

Posted by BlueFat on Thursday, September 14, 2023

CentOS 7.4 安装 Cobbler 实现自动化安装 Ubuntu 18.04

Cobbler + Kickstart

https://cobbler.github.io 环境准备 OS: CentOS 7.6 IP: 192.168.1.22 关闭防火墙 sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config setenforce 0 systemctl stop firewalld.service systemctl disable firewalld.service 阿里云源 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo 安装Cobbler 安装cobbler yum install cobbler cobbler-web dhcp debmirror pykickstart fence-agents -y 开机启动

Posted by BlueFat on Wednesday, May 24, 2023

Java Redis Exception Connection Reset by Peer

Java Redis Exception Connection Reset by Peer

报错信息 2023-05-18 14:18:01.916 ERROR 109202 --- [pool-6-thread-1] o.s.s.s.TaskUtils$LoggingErrorHandler : Unexpected error occurred in scheduled task. org.springframework.data.redis.RedisSystemException: Redis exception; nested exception is io.lettuce.core.RedisException: io.netty.channel.unix.Errors$NativeIoException: readAddress(..) failed: Connection reset by peer at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:74) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:268) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceSetCommands.convertLettuceAccessException(LettuceSetCommands.java:520) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.connection.lettuce.LettuceSetCommands.sMembers(LettuceSetCommands.java:245) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.connection.DefaultedRedisConnection.sMembers(DefaultedRedisConnection.java:607) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.core.DefaultSetOperations.lambda$members$6(DefaultSetOperations.java:158) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:224) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:95) ~[spring-data-redis-2.1.10.RELEASE.jar!/:2.1.10.RELEASE] at org.springframework.data.redis.core.DefaultSetOperations.members(DefaultSetOperations.java:158)

Posted by BlueFat on Tuesday, May 23, 2023

iptables NAT转发共享上网

iptables nat forward share network

原文：http://wwdhks.blog.51cto.com/839773/1154032 iptables是一个Linux下优秀的nat+

Posted by BlueFat on Tuesday, May 23, 2023

Golang 基础知识笔记

Golang Basic Knowledge Notes

一、GO变量 1.1 变量的介绍 变量概念 变量相当于内存中的一个数据存储空间，可以将变量看做是一个房间的门牌号，通过门牌号我们可以找到房间，同样的道理

Posted by BlueFat on Saturday, May 6, 2023

ESXi 6.6 固态硬盘阵列不识别为SSD类型解决

Esxi 6 Ssd Arry Identification

ESXi开启SSH，登陆ESXI主机 # 列出储存清单 esxcli storage nmp device list # WEB界面 - 存储 - 设备 查看 naa.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # 设置为SSD类型 esxcli storage nmp satp rule add -s VMW_SATP_LOCAL --device naa.644a84200b26dc0023dda3c80dcac2xx --option="enable_ssd" 重启ESX

Posted by BlueFat on Friday, March 24, 2023

Dell R620 R630 R720 R730 通过IPMI手动控制服务器风扇转速

Dell Server Ipmi Fan Offset

测试IPMI的连接性： ipmitool -I lanplus -H 192.168.1.149 -U root -P root raw 将风扇设置为手动调节转速 ipmitool -I lanplus -H 192.168.1.149 -U root -P root-passwd raw 0x30 0x30 0x01 0x00 手动设置风扇转速（最后一字节指示风扇转速的百分

Posted by BlueFat on Thursday, March 23, 2023

Ubuntu 20.04 Netplan Dns

Ubuntu 20.04 Netplan Dns

如果在netplan设置dns了，但是实际验证中发现无效。 例如通过nslookup去解析域名，显示的是 dns服务器是127.0.0.53 但是

Posted by BlueFat on Thursday, March 23, 2023

Ubuntu 22.04 设置静态IP

ubuntu 22.04 setting static ip

cat /etc/netplan/00-installer-config.yaml # This is the network config written by 'subiquity' network: ethernets: ens160: dhcp4: false addresses: - 192.168.77.3/24 ens192: dhcp4: false addresses: - 119.38.120.107/27 nameservers: addresses: - 223.5.5.5 routes: - to: default via: 119.38.120.1 version: 2 netplan apply

Posted by BlueFat on Thursday, March 23, 2023

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