下载nexus oss免费版本基于jetty的压缩包并解压
tar -zxvf nexus-3.0.1-01-unix.tar.gz
进入nexus目录，更改端口号
cd nexus-3.0.1-01
vim /etc/org.sonatype.nexus.cfg
# Jetty section
application-port=8081
application-host=0.0.0.0
nexus-args=${karaf.etc}/jetty.xml,${karaf.etc}/jetty-http.xml,${karaf.etc}/jetty-requestlog.xml
nexus-context-path=/
# Nexus section
nexus-edition=nexus-oss-edition
nexus-features= nexus-oss-feature更改端口后，修改Centos防火墙配置，开通对应端口
vim /etc/sysconfig/iptables # Generated by iptables-save v1.4.7 on Sun Feb 19 16:43:59 2017 *filter :INPUT DROP [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :syn-flood - [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 21 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 2000:3000 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 8081 -j ACCEPT -A INPUT -f icmp -m limit --limit 1/sec --limit-burst 10 -j ACCEPT -A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j syn-flood -A INPUT -j REJECT --reject-with icmp-host-prohibited -A syn-flood -p tcp -m limit --limit 3/sec --limit-burst 6 -j RETURN -A syn-flood -j REJECT --reject-with icmp-port-unreachable COMMIT # Completed on Sun Feb 19 16:43:59 2017
重启iptables服务
service iptables restart
启动nexus服务
nexus start
原文地址：http://11046468.blog.51cto.com/11036468/1928889
