一、下载 Nexus:

cd /usr/local/src

wget http://download.sonatype.com/nexus/oss/nexus-xxxx-bundle.tar.gz

二、安装配置授权 

cd /var/app/

sudo cp nexus-xxxx-bundle.tar.gz /var/app/

cd /var/app/

sudo tar xvzf nexus-xxxx-bundle.tar.gz

ln -s nexus-xxxx nexus

cp nexus/bin/nexus /etc/init.d/nexus

cd /etc/init.d

chmod 755 /etc/init.d/nexus

三、配置/etc/init.d/nexus：

vi /etc/init.d/nexus （修改如下变量）

示例：

# Set this to the root of the Nexus installation

NEXUS_HOME="/var/app/nexus-XXX"（不配置使用默认也可以）

# NOTE - This will set the user which is used to run the Wrapper as well as

#  the JVM and is not useful in situations where a privileged resource or

#  port needs to be allocated prior to the user being changed.

RUN_AS_USER=nexus (指定一个系统普通用户、启动使用普通用户启动)

示例：

配置/usr/local/nexus/conf/nexus.properties

vi /usr/local/nexus/conf/nexus.properties

示例：

# Jetty section

application-port=8081

application-host=0.0.0.0

nexus-webapp=${bundleBasedir}/nexus

nexus-webapp-context-path=/

# Nexus section

nexus-work=${bundleBasedir}/sonatype-work/nexus

runtime=${bundleBasedir}/nexus/WEB-INF

示例：

配置/var/app/nexus-xxxx权限

chown -R nexus:nexus /usr/local/nexus

备份仓库：将sonatype-work文件夹整体备份即可，也可以选择只备份最重要的两个文件夹索引（indexer）和仓库（storage）

还原仓库：将备份好的sonatype-work文件拷贝到新的服务器中。然后修改nexus/conf/nexus.properties配置文件，重新指定仓库的目录。