SSH公钥登录
leishendeMBP:www leishen$ ssh-keygen -t rsa
leishendeMBP:www leishen$ cat ~/.ssh/id_rsa.pub | ssh root@39.106.74.195 'cat - >> ~/.ssh/authorized_keys'开启防火墙
[root@lei ~]# ls /etc/sysconfig/iptables*
/etc/sysconfig/iptables-config
[root@lei ~]# iptables -F
[root@lei ~]# service iptables save
iptables: Saving firewall rules to /etc/sysconfig/iptables:[ OK ]
[root@lei ~]# ls /etc/sysconfig/iptables*
/etc/sysconfig/iptables /etc/sysconfig/iptables-config新ssh端口号在这个范围内即可，如422
先查看下服务器端口号范围：
[root@lei ~]# sysctl -a|grep ip_local_port_range
net.ipv4.ip_local_port_range = 32768 60999修改端口重启
vim /etc/ssh/sshd_config
service sshd restart阿里云安装组里面设置入网可访问端口
mysql安装
下载
https://dev.mysql.com/downloa…
centos本质上和red hat是一个公司的
解压
tar -xvf mysql-5.7.20-1.el6.x86_64.rpm-bundle.tar
按顺序安装（不需要全部安装）
[root@ lei xx]# rpm -ivh mysql-community-common-5.7.20-1.el6.x86_64.rpm
warning: mysql-community-common-5.7.20-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ########################################### [100%]
1:mysql-community-common ########################################### [100%]
[root@ lei xx]# rpm -ivh mysql-community-libs-5.7.20-1.el6.x86_64.rpm
warning: mysql-community-libs-5.7.20-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ########################################### [100%]
1:mysql-community-libs ########################################### [100%]
[root@ lei xx]# rpm -ivh mysql-community-client-5.7.20-1.el6.x86_64.rpm
warning: mysql-community-client-5.7.20-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ########################################### [100%]
1:mysql-community-client ########################################### [100%]
[root@ lei xx]# rpm -ivh mysql-community-server-5.7.20-1.el6.x86_64.rpm
warning: mysql-community-server-5.7.20-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ########################################### [100%]
1:mysql-community-server ########################################### [100%]
[root@ lei xx]# rpm -ivh mysql-community-devel-5.7.20-1.el6.x86_64.rpm
warning: mysql-community-devel-5.7.20-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ########################################### [100%]
1:mysql-community-devel ########################################### [100%]启动Mysql服务
[root@lei xx]# /usr/bin/mysqld --initialize --user=mysql
-bash: /usr/bin/mysqld: No such file or directory
[root@lei xx]# service mysqld start
Initializing MySQL database: [ OK ]
Starting mysqld: [ OK ]修改管理员密码
查看安装日志中分配的密码
[root@lei xx]# grep 'temporary password' /var/log/mysqld.log
2017-11-09T10:59:41.877594Z 1 [Note] A temporary password is generated for root@localhost: fKrsw2Xh
[root@lei xx]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.7.20
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>修改密码
ALTER USER 'root'@'localhost' IDENTIFIED BY '1234560'; 密码必须包含大写字母小写字母数字和符号，不然会提示：ERROR 1819 (HY000): Your password does not satisfy the current policy requirements（您的密码不符合当前的安全策略要求）
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'qvWjYnE8';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
mysql>修改成功
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'L)2X4r4B2iz4';
Query OK, 0 rows affected (0.00 sec)开启远程登录，授权远程登录用户
grant all privileges on . to ‘用户名’@’%’ identified by ‘密码’ withg rant option;
mysql -uroot -proot -e “grant all privileges on . to ‘root’@’%’ identified by ‘1334676’ with grant option;”
开机启动
[root@lei ~]# chkconfig --list | grep mysqld
mysqld 0:off 1:off 2:off 3:on 4:on 5:on 6:off
[root@lei ~]# chkconfig mysqld on
[root@lei ~]# chkconfig --list | grep mysqld
mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off设置编码
vim /etc/my.cnf
在[mysqld]下新增一行，添加character-set-server= utf8mb4，保存
查看字符集
show variables like “%character%”;
character_set_client utf8
character_set_connection utf8
character_set_database utf8mb4
character_set_filesystem binary
character_set_results utf8
character_set_server utf8mb4
character_set_system utf8
character_sets_dir /usr/share/mysql/charsets/Nginx安装
[root@aider soft]# rpm -ivh http://nginx.org/packages/centos/6/x86_64/RPMS/nginx-1.10.1-1.el6.ngx.x86_64.rpm
Retrieving http://nginx.org/packages/centos/6/x86_64/RPMS/nginx-1.10.1-1.el6.ngx.x86_64.rpm
warning: /var/tmp/rpm-tmp.gnEGo7: Header V4 RSA/SHA1 Signature, key ID 7bd9bf62: NOKEY
Preparing... ########################################### [100%]
1:nginx ########################################### [100%]
----------------------------------------------------------------------
Thanks for using nginx!
Please find the official documentation for nginx here:
* http://nginx.org/en/docs/
Commercial subscriptions for nginx are available on:
* http://nginx.com/products/
----------------------------------------------------------------------安装
[root@aider soft]# yum -y install nginx
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
....
Updated:
nginx.x86_64 0:1.10.2-1.el6
Complete!目录
[root@aider conf.d]# cd /etc/nginx/
[root@aider nginx]# ls
conf.d fastcgi.conf fastcgi_params koi-utf mime.types nginx.conf scgi_params uwsgi_params win-utf
default.d fastcgi.conf.default fastcgi_params.default koi-win mime.types.default nginx.conf.default scgi_params.default uwsgi_params.default启动
[root@aider nginx]# service nginx start
Starting nginx: nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol)
[FAILED
[root@aider nginx]# cd conf.d/
[root@aider conf.d]# ls
default.conf ssl.conf virtual.conf
[root@aider conf.d]# mv default.conf default
[root@aider conf.d]# service nginx start
Starting nginx: [ OK ]
[root@aider conf.d]#