Linux安装openssl出现Can‘t locate IPC/Cmd.pm 解决

## 一. 问题描述
### 1. OpenSSL: error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version
解决方案：
```shell
yum install openssl-devel -y
```
### 2. Can‘t locate IPC/Cmd.pm in
缺少IPC/Cmd.pm 模块

```shell
Can't locate IPC/Cmd.pm in @INC (@INC contains: /opt/common/openssl-3.0.1/util/perl /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 . /opt/common/openssl-3.0.1/external/perl/Text-Template-1.56/lib) at /opt/common/openssl-3.0.1/util/perl/OpenSSL/config.pm line 18.
BEGIN failed--compilation aborted at /opt/common/openssl-3.0.1/util/perl/OpenSSL/config.pm line 18.
Compilation failed in require at /opt/common/openssl-3.0.1/Configure line 23.
BEGIN failed--compilation aborted at /opt/common/openssl-3.0.1/Configure line 23.
```

## 二. IPC/Cmd.pm解决方案
1.安装perl-CPAN
```shell
yum install -y perl-CPAN
```
2.进入perl shell中
```shell
perl -MCPAN -e shell
```
进入后第一步选yes
第二步选manual
第三步选yes
![](/media/202407/2024-07-17_113154_1362400.2589605757777047.png)

出现以下cpan[1]>就可以了
![](/media/202407/2024-07-17_113206_6495880.3003379258814797.png)

安装缺少的模块
```shell
install IPC/Cmd.pm
```
![](/media/202407/2024-07-17_113300_2746720.45714624583138086.png)

后面就可以等着了，每一步都需要等很久，有点慢，耐心等待即可