换了份工作，新公司是做加密币交易所的，服务器都在国外。所以有机会接触到了微软的azure云服务，
服务器基本都在亚太区新加坡。
ps：这是我第一次实操单台配置32c64g的虚拟机，纪念一下。以前工作中最多就8c16g，数量的话两三百台机器。
history#
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| uname -a # kernel info
cat /etc/redhat-release
df -alh # query disk info
ifconfig
ping 10.0.0.6
ssh 10.0.0.6
ls .ssh/
mv azagent .ssh/id_rsa
ls -alh .ssh/id_rsa
ssh 10.0.0.6
ping jd.com
yum install yum-utils
sudo yum install yum-utils
yum -y upgrade
sudo yum -y upgrade
sudo yum -y update
sudo yum-config-manager --add-repo https://openresty.org/package/centos/openresty.repo
sudo yum install openresty # install web server
sudo vi /etc/ssh/sshd_config
systemctl status sshd
systemctl restart sshd
sudo systemctl restart sshd
yum install ansible
sudo yum install ansible
sudo systemctl status openresty
sudo systemctl enable openresty
sudo systemctl start openresty
curl -I localhost
uptime
date
sudo install git
sudo yum install git
locate openresty
rpm -qc openresty # query configuration file
wget https://copr.fedorainfracloud.org/coprs/dheche/prometheus/repo/epel-7/dheche-prometheus-epel-7.repo
ls
head dheche-prometheus-epel-7.repo
suod mv dheche-prometheus-epel-7.repo /etc/yum.repos.d/prometheus.repo
sudo mv dheche-prometheus-epel-7.repo /etc/yum.repos.d/prometheus.repo
sudo yum install prometheus
sudo yum install prometheus-node
sudo vi /etc/yum.repos.d/prometheus.repo
sudo yum install prometheus
sudo yum install prometheus2
sudo yum install node_exporter
sudo yum install alertmanager
vi /etc/hosts
sudo vi /etc/hosts
ssh ten
sudo vi /etc/yum.conf
ls /var/cache/yum/x86_64/7/prometheus/
ls /var/cache/yum/x86_64/7/prometheus/packages/
ls -alh /var/cache/yum/x86_64/7/prometheus/packages/
ls
sudo yum install yum-utils
history
sudo yumdownloader prometheus
ls
ls -alh
sudo yumdownloader prometheus2 # download installed rmp packages
sudo yumdownloader node_exporter.x86_64
sudo yumdownloader alertmanager.x86_64
ls -alh
scp node_exporter-0.15.2-1.el7.centos.x86_64.rpm ten:
ssh ten
ssh ten 'sudo systemctl enable node_exporter'
ssh ten 'sudo systemctl start node_exporter'
sudo systemctl start node_exporter
sudo systemctl enable node_exporter
sudo systemctl enable alertmanger
sudo systemctl enable alertmanager
sudo systemctl start alertmanager
netstat -nlp
sudo -i # su to root
pwd
ls
rm prometheus-1.8.2-1.el7.centos.x86_64.rpm
ls
sudo systemctl enable prometheus
sudo systemctl start prometheus
cat/etc/passwd
rpm -qc prometheus2
ls -alh /etc/default/prometheus
id prometheus
cat /etc/default/prometheus
ls -alh /etc/prometheus/
sudo -i
|
总的说来敲了100来条指令，比较重要的是下面三条指令：
sudo -i切换为root用户；yumdownloader 保存通过yum安装的rpm包 (配合yum -C install 和SCP可以加快LAN下所有主机的安装速度)；rpm -qc 查询安装包配置信息;
timeout#
默认情况下，Azure 的Linux主机的sshd 服务会把闲着超过1分钟的客户端踢下线ssh session timeout。
修改本地ssh 客户端连接配置添加ServerAliveInterval等配置项就可以规避上面说的timeout限制：
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| #### .ssh/config snippet
HOST singapore2
HostName 40.50.60.70
IdentityFile ~/.ssh/az
ServerAliveInterval 120
ServerAliveCountMax 30
ConnectTimeout 30
|
