To verify Hadoop releases using GPG http://hadoop.apache.org/releases.html To verify Hadoop releases using GPG: Download the release hadoop-X.Y.Z-src.tar.gz from a mirror site. Download the signature file hadoop-X.Y.Z-src.tar.gz.asc from Apache. Down…

What Is Apache Hadoop? Getting Started Download Hadoop Who Uses Hadoop? News 15 October, 2013: release 2.2.0 available 25 August, 2013: release 2.1.0-beta available 27 December, 2011: release 1.0.0 available March 2011 - Apache Hadoop takes top prize…

Meet Hadoop 1.1 Data!(数据) Most of the data is locked up in the largest web properties (like search engines), or scientific or financial institutions, isn't it? Does the advent of "Big Data," as it is being called, affect smaller organizations or…

SElinux Security-Enhanced Linux由美国国家安全局主导开发一套强化linux安全的mac扩展模块 selinux的运作机制:集成到linux内核上(2.6及以上)操作系统提供可定制的策略,管理工具 linux安全保护模型 DAC,自主访问控制 MAC,强制访问控制 ------------------------------------------------------------------------ SElinux使用: [root@158 ~]# sesta…

转载自:http://blog.csdn.net/sunny05296/article/details/54089194 安装HBase时,要考虑选择正确的Hadoop版本,否则可能出现不兼容的情况. HBase各版本和Hadoop版本的支持情况,官方有相关说明,下面表格中: "S" = 支持 "X" = 不支持 "NT" = 未测试   HBase-0.94.x HBase-0.98.x (Support for Hadoop 1.1+ is…

转载: 源文件位置:http://blog.chinaunix.net/uid-9525959-id-2001824.html GPG [功能]  GPG是加密和数字签名的免费工具,大多用于加密信息的传递.除了仅用密码加密外,GPG最大的不同是提供了“公钥/私钥”对.利用你的“公钥”别人加密信息不再需要告诉你密码,随时随地都能发送加密信息.而这种加密是单向的,只有你的“私钥”能解开加密.数字签名又是另一大使用方向.通过签名认证,别人能确保发布的消息来自你,而且没有经过修改. [原理]  对称密钥…

 GPG入门练习笔记  参考阮一峰的GPG入门教程http://www.ruanyifeng.com/blog/2013/07/gpg.html 1.加密     1)刘言机器: 用王老师公钥加密gpg --recipient DBDA805F --output ToTeacherWang.helloword.en.gpg --encrypt helloword.txt      2)王老师机器: 王老师用自己的私钥(输入密码)解密gpg --decrypt ToTeacherWang.hell…

https://gist.github.com/fernandoaleman/1376720  How to sign your custom RPM package with GPG key 这是文件rpm-digital-signature.sh #rpm-digital-signature.sh # How to sign your custom RPM package with GPG key # Step: # Generate gpg key pair (public key and…

环境 Ubuntu18.04 gpg version 2.24 参考文档 GnuPG (简体中文) 例子文档 阮一峰 key Management 简介 他人用公钥来加密,自己用私钥来解密 自己用私钥来签名,他人用公钥来验证 The public key is given out to the world; the private key must be kept a secret. Anyone possessing the public key can encrypt a message s…

(二)Kafka动态增加Topic的副本(Replication) 1. 查看topic的原来的副本分布 [hadoop@sdf-nimbus-perf ~]$ le-kafka-topics.sh --describe --topic http_zhixin_line1 Topic:http_zhixin_line1 PartitionCount:3 ReplicationFactor:1 Configs: Topic: http_zhixin_line1 Partition: 0 Leade…