配置VNC Server # yum install tigervnc-server# yum groupinstall "General Purpose Desktop" "Desktop Platform"# yum install xorg-x11-server-utils 配置VNC server # vim /etc/sysconfig/vncservers?VNCSERVERS="2:root"VNCSERVERARGS[2]="-geometry 14
配置VNC Server
# yum install tigervnc-server # yum groupinstall "General Purpose Desktop" "Desktop Platform" # yum install xorg-x11-server-utils配置VNC server
# vim /etc/sysconfig/vncservers? VNCSERVERS="2:root" VNCSERVERARGS[2]="-geometry 1440x900" # vncpasswd? 设置vnc用户root的密码 # vim ~/.vnc/xstartup #!/bin/sh [ -r /etc/sysconfig/i18n ] && . /etc/sysconfig/i18n export LANG export SYSFONT vncconfig -iconic & unset SESSION_MANAGER unset DBUS_SESSION_BUS_ADDRESS OS=`uname -s` if [ $OS = 'Linux' ]; then case "$WINDOWMANAGER" in *gnome*) if [ -e /etc/SuSE-release ]; then PATH=$PATH:/opt/gnome/bin export PATH fi ;; esac fi if [ -x /etc/X11/xinit/xinitrc ]; then exec /etc/X11/xinit/xinitrc fi if [ -f /etc/X11/xinit/xinitrc ]; then exec sh /etc/X11/xinit/xinitrc fi [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey #xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & #twm & 这两行要注释掉,否则黑屏 exec gnome-session & # /etc/init.d/vncserver restart 重启服务
验证VNC


安装Oracle
依赖包 Oracle依赖太多的包,具体的可以参见下Oracle安装文档。我们可以通过Oracle的yum仓库来解决这些依赖关系。 下载Oracle公开yum文件RHEL/CentOs 6.x
# cd /etc/yum.repos.d # wget https://public-yum.oracle.com/public-yum-ol6.repo # wget https://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol6 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
RHEL/CentOs 5.x
# cd /etc/yum.repos.d # wget https://public-yum.oracle.com/public-yum-el5.repo # wget https://public-yum.oracle.com/RPM-GPG-KEY-oracle-el5 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
RHEL/CentOs 4.x
# cd /etc/yum.repos.d # wget https://public-yum.oracle.com/public-yum-el4.repo # wget https://public-yum.oracle.com/RPM-GPG-KEY-oracle-el4 -O /usr/share/rhn/RPM-GPG-KEY-oracle安装必需的包:
# yum install oracle-rdbms-server-11gR2-preinstall设置环境变量
# vim /etc/hosts 10.0.121.232 ttlsa_db1 # groupadd oinstall # groupadd dba # useradd -g oinstall -G dba oracle # passwd oracle # vim /etc/security/limits.conf oracle soft nproc 2047 oracle hard nproc 16384 oracle soft nofile 1024 oracle hard nofile 65536 oracle soft stack 10240 # su - oracle # vim .bash_profile export ORACLE_BASE=/data/app/oracle export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 export ORACLE_SID=orcl export ORACLE_OWNER=oracle export PATH=$PATH:$ORACLE_HOME/bin:$HOME/bin # mkdir /data/app # chown -R oracle:oinstall /data/app开始安装









# wget ftp://ftp.pbone.net/mirror/www.whiteboxlinux.org/whitebox/4/en/os/x86_64/WhiteBox/RPMS/pdksh-5.2.14-30.x86_64.rpm # rpm -ivh pdksh-5.2.14-30.x86_64.rpm大部分是过时的包,可以忽略掉。不过有个包pdksh要安装。show succeeded看看这些包有没安装。










原文地址:centos6 下安装 Oracle 11g, 感谢原作者分享。

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.


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