SSL證書在不同的系統環境下安裝，其操作也是有差異的。系統可分為Linux、Windows等，今天小編要和大家講的是Linux的ssl證書安裝教程，一起來看下。

Linux的ssl證書安裝教程

先安裝zlib，見linux下安裝zlib

安裝openssl Building a Web Server, for Linux

下載地址

Package(Linux source) : openssl-0.9.8c.tar.gz

解壓文件

tar -zxvf openssl-0.9.8c.tar.gz

Our Configuration

Install to : 默認安裝路徑 /usr/local/ssl

Module type : dynamically and staticly loaded modules, *.so *.a

Build Instructions

Configure

.../openssl-0.9.8c]# ./config --prefix=/usr/local/ --openssldir=/usr/local/openssl -g3 shared zlib-dynamic enable-camellia

--prefix=/usr/local/ --openssldir=/usr/local/openssl

[指定安裝路徑; 默認是'/usr/local/ssl' -- which we will symlink]

shared

[in addition to the usual static libraries, create shared libraries]

zlib-dynamic

[like "zlib", but has OpenSSL load the zlib library dynamically when needed]

enable-camellia

[enables the symmetric cipher 'Camellia' (128-bit, 192-bit, 256-bit key versions), which is now available for royalty-free use]

運行./config --prefix=/usr/local/openssl (更 多選項用./config --help來查看),可用的選項有：no-mdc2、no-cast no-rc2、no-rc5、no-ripemd、 no-rc4 no-des 、no-md2、no-md4、no-idea 、no-aes、no-bf、no-err、no-dsa、no-dh、 no-ec、no-hw、no-asm、no-krb5、no-dso 、no-threads 、no-zlib、-DOPENSSL_NO_HASH_COMP、-DOPENSSL_NO_ERR、-DOPENSSL_NO_HW 、- DOPENSSL_NO_OCSP、-DOPENSSL_NO_SHA256和-DOPENSSL_NO_SHA512等。去掉不必要的內容可以減少生成庫的大小。 若要生成debug版本的庫和可執行程序加-g或者-g3(openssl中有很多宏，需要調試學習最好加上-g3)。

display guess on system made by './config'...

.../openssl-0.9.8c]# ./config -t

正式安裝，Build and Install

.../openssl-0.9.8c]# make depend

[step required since extra cipher was enabled]      (時間很長)

.../openssl-0.9.8c]# make                     (時間很長，慢慢等待)

.../openssl-0.9.8c]# make test

.../openssl-0.9.8c]# make install

*測試是否安裝成功，＃openssl version 是否是新安裝的版本

Symlink

Form symlink from '/usr/local/ssl-0.9.8c' to '/usr/local/ssl'

...]# cd /usr/local

/usr/local]# ln -s ssl-0.9.8c ssl

Update the Run-time Linker

ld.so.cache will need to be updated with the location of the new OpenSSL shared libs: libcrypto.so.0.9.8 and libssl.so.0.9.8

Sometimes it is sufficient to just symlink or copy these two files to /lib, but we recommend you follow these instructions instead.

Edit /etc/ld.so.conf, add to paths...

/usr/local/ssl/lib

Update the run-time linker...

...]# ldconfig

Update the PATH

Edit /root/.bash_profile, add to PATH variable...

/usr/local/ssl/bin

Re-login.

[sanity check] OpenSSL

Verify that binary 'openssl' is linking against the correct ssl libraries...

...]# ldd /usr/local/openssl/bin/openssl

libssl.so.0.9.8 => /usr/local/ssl-0.9.8c/lib/libssl.so.0.9.8 ...

libcrypto.so.0.9.8 => /usr/local/ssl-0.9.8c/lib/libcrypto.so.0.9.8 ...

...]# which openssl

/usr/local/ssl/bin/openssl

...]# openssl version

OpenSSL 0.9.8c 05 Sep 2006

If another path, or an older version is shown, your system contains a previously installed OpenSSL that is first [relative to the newer openssl] in the path.

Repeate the steps in section 'Update the PATH', except place the specified location at the start of the PATH variable.

Note that the older openssl, on most systems, is located under /usr/bin

The location of 'openssl' can be found with...

...]# which openssl

...]# openssl version

should display openssl 0.9.7d 17 mar 2004

if an older version is shown, your system contains a previously installed openssl.

repeate the steps in update the path, except place the specified location at the start of the path variable.

[the older openssl, on most systems, is located under /usr/bin]

[the command 'which openssl' should display the path of the openssl that your system is using]

/usr/local/ssl/bin]# ./openssl version should display the correct version.

     但是我最后沒有得到想要的結果，系統原來的openssl還是沒能卸載掉，我該怎么做那？我繼續搜索資料，哈，幸運的我找了，在一個國內論壇上是這么說的

      cd /usr/local/ssl/lib

      ln -s libcrypto.so.0.9.7 libcrypto.so.2

      ln -s libssl.so.0.9.7 libssl.so.2

      //最后要刷新系統的動態連接庫配置

      echo /usr/local/ssl/lib >> /etc/ld.so.conf

      ldconfig -v

好了，以上便是Linux的ssl證書安裝教程，如有不懂，可咨詢我們的在線客服。

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