三台机器,master版本装好，隔了一天装node节点，发现在版版本对不上了，所以只能升级一下master升级前先升级一下kubeadmyum-yinstallkubeadm-1.20.1执行升级计划执行升级升级完了之后，升级一下kubeletkubectlyum-yinstallkubeletkubectl重启kubelet完成升级systemctlrestartkubelet升级完成后查看集群
-hosts:allvars:cap_file:packet_capture_{{ansible_hostname}}.pcaptasks:-name:starttcpdump#command:/usr/sbin/tcpdump-nnviany'port80'-s0-B65535-C50M-W100-w/data/tmp/{{cap_file}}command:/usr/sbin/tcpdump-
ELK[root@localhost ~]# lltotal 906244-rwxr-xr-x 1 root root 318821777 Nov 19 13:19 elasticsearch-7.10.0-x86_64.rpm-rwxr-xr-x 1 root root 256869646 Nov 19 13:19 kibana-7.10.0-x86_64.rpm-rwxr-xr-x 1
ELK集群配置安装初始化iptables关闭selinux关闭配置hosts解析[root@localhostelasticsearch]#cat/etc/hosts127.0.0.1localhostlocalhost.localdomainlocalhost4localhost4.localdomain4::1localhostlocalhost.localdomainlocalhost6lo
CentOS 7 DNS安装配置服务器地址：10.211.55.200yum -y install epel-releaseyum -y install bind bind-chroot bind-utils（包含dig命令）1、查看安装的配置文件[root@DNS named]# ll /etc/named*-rw-r--r-- 1 root root 621 Jun 1 23:26 /e
实战环境（CentOS7）VIP 10.211.55.180LVS1 10.211.55.151LVS1 10.211.55.151RS1 10.211.55.171RS2 10.211.55.172初始化环境所有节点iptalbes -F #清空防火墙systemctl stop firewalld #关闭防火墙systemctl
MySQL5.1.12开始，MYSQL中BINLOG_FORMAT的三种模式mysql复制主要有三种方式：基于SQL语句的复制(statement-basedreplication,SBR)，基于行的复制(row-basedreplication,RBR)，混合模式复制(mixed-basedreplication,MBR)。对应的，binlog的格式也有三种：STATEMENT，ROW，MIXE
Svn结合apache展示版本库文件安装httpd和svnyum-yinstallhttpdsubversionmod_dav_svn上传httpd的subversion.conf子配置文件到/etc/httpd/conf.d/catsubversion.conf<Location/svn>DAVsvnSVNParentPath/home/svnAuthTypeBasicAuthNam
zabbixfor docker
GitLab和SSH密钥
docker install
增加磁盘1、格式化mkfs.ext4/dev/sdc2、创建pvpvcreate/dev/sdc3、创建或添加到卷组vg001vgcreatevg001/dev/sdc#创建vgextendvg001/dev/sdc#添加4、创建LV卷lvcreate-l+10%free-nlv001vg001#创建指定比例lvcreate-L+10G-nlv001vg001#创建指定大小5、扩容LVlvexte
WEB压测工具http_load、webbench、ab、Siege复杂业务压测loadrunner
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