1、 SSH login without password
Main command
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys-->Add public key
service sshd restart --> restart ssh service
Reference link:
http://jingyan.baidu.com/article/2fb0ba4043124a00f2ec5f0f.html
2、 View system related information:
uname -a View OS details
file /bin/ls
Display system program information, you can see how many bits
Get machine word length
getconf LONG_BIT
View OS version
cat /proc/version
Reference link:
http://blog.sina.com.cn/s/blog_537de4b50100zw1n.html
View detailed os parameter information
getconf -a
3、 File remote copy example
Local to remote: scp -r ./file to be transferred user@remoteip:/path/to/destination folder
Remote to local: scp user@remoteip:/path/to/destination file./
4、 mysql
Delete the mysql command completely:
yum remove mysql mysql-server mysql-libs compat-mysql51
rm -rf /var/lib/mysql
rm /etc/my.cnf
Check if there is still mysql software:
rpm -qa|grep mysql
If yes, continue to delete
Reference link:
http://www.cnblogs.com/shenliang123/p/3203546.html (installation)
http://www.cnblogs.com/ikodota/p/use_yum_update_mysql.html (upgrade to 5.5.37)
Permissions:
grant all privileges on . to 'root'@'%' identified by 'hjhjhj' with grant option;
Login:
mysql -h ipaddress -P3306 -uroot -p
Export and import data:
mysqldump -uroot -ppassword -h ipaddress -P port --routines --default-character-set=utf8 --databases mydatabase > /tmp/my.sql
mysql> source /tmp/my.sql
5、 Install jdk, jetty, nginx
jdk:
rpm -ivh jdk-8u91-linux-x64.rpm
jetty:
wget http://central.maven.org/maven2/org/eclipse/jetty/jetty-distribution/9.3.14.v20161028/jetty-distribution-9.3.14.v20161028.tar.gz
tar zxvf /home/jetty-distribution-9.3.14.v20161028.tar.gz -C /usr/share/
mv jetty-distribution-9.3.14.v20161028/ jetty/
nginx:
Reference link:
http://blog.chinaunix.net/xmlrpc.php?r=blog/article&uid=29791971&id=4702007
For the configuration of jetty and nginx[load balancing] (https://cloud.tencent.com/product/clb?from=10680), you can refer to this article:
Overview of nginx+jetty load balancing deployment on mac
6、 glibc version upgrade
Reference link:
http://www.cnblogs.com/gw811/p/3676856.html
7、 gitlab installation (multiple pits on the Internet, according to the standard document, select the corresponding version to install)
Reference link:
https://github.com/gitlabhq/gitlab-recipes/tree/8-1-stable/install/centos
8、 Firewall configuration
Reference link:
http://blog.csdn.net/jemlee2002/article/details/7042991/
9、 View java process and parameter configuration
jps
jinfo -flags 18311
jinfo -flag UseSerialGC 18311
10、 Other commands:
netstat -anp|grep 8099 View port 8099 occupancy
Install a specific jar package:
mvn install:install-file -Dfile=./my.jar -DgroupId=com.dong -DartifactId=my -Dversion=1.0.0 -Dpackaging=jar
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