NTP 升级

franket

发布于 2022-04-24 16:02:04

65400

代码可运行

文章被收录于专栏：技术杂记技术杂记

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代码可运行

前言

NTP (Network Time Protocol) 是网络系统中用来协同时间的关键服务，它的作用就是用来同步时间

前不久网络中暴出NTP的漏洞可以被利用，详情可以参看 针对网络时间协议（NTP）的攻击将会引起巨大的麻烦 (原文) 还有 官方申明

这里描述如何对ntp进行升级，详细可以参考 官方文档

Tip: 当前版本 NTP 4.2.8p4

概要

下载

下载地址

[root@h101 tmp]# wget  http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz 
--2015-11-09 17:40:04--  http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz
Resolving www.eecis.udel.edu... 128.4.31.8
Connecting to www.eecis.udel.edu|128.4.31.8|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz [following]
--2015-11-09 17:40:05--  https://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz
Connecting to www.eecis.udel.edu|128.4.31.8|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 7104852 (6.8M) [application/x-gzip]
Saving to: “ntp-4.2.8p4.tar.gz”

100%[============================================================================================>] 7,104,852    244K/s   in 31s     

2015-11-09 17:40:38 (227 KB/s) - “ntp-4.2.8p4.tar.gz” saved [7104852/7104852]

[root@h101 tmp]#

对下载包进行校验

[root@h101 tmp]# wget http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz.md5 
--2015-11-09 17:41:56--  http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz.md5
Resolving www.eecis.udel.edu... 128.4.31.8
Connecting to www.eecis.udel.edu|128.4.31.8|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz.md5 [following]
--2015-11-09 17:41:57--  https://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-4.2.8p4.tar.gz.md5
Connecting to www.eecis.udel.edu|128.4.31.8|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 53 [application/x-gzip]
Saving to: “ntp-4.2.8p4.tar.gz.md5”

100%[============================================================================================>] 53          --.-K/s   in 0s      

2015-11-09 17:41:59 (4.39 MB/s) - “ntp-4.2.8p4.tar.gz.md5” saved [53/53]

[root@h101 tmp]# file ntp-4.2.8p4.tar.gz.md5 
ntp-4.2.8p4.tar.gz.md5: ASCII text
[root@h101 tmp]# cat ntp-4.2.8p4.tar.gz.md5 
6af96862b09324a8ef965ca76b759c8b  ntp-4.2.8p4.tar.gz
[root@h101 tmp]# md5sum   ntp-4.2.8p4.tar.gz   
6af96862b09324a8ef965ca76b759c8b  ntp-4.2.8p4.tar.gz
[root@h101 tmp]#