【CentOS】CentOS7中修改创建账号时系统默认UID、G

strace命令详解

https://www.cnblogs.com/machangwei-8/p/10388883.html

如何检查进程正在监听的信号？

https://qastack.cn/unix/85364/how-can-i-check-what-signals-a-process-is-listening-to

在RHEL7或CentOS7中修改创建账号时系统默认UID、GID最小起始值及其他设置

https://cloud.tencent.com/developer/article/1375004