karma.conf.js使用以下设置时，unit test会不停地跑。autoWatch: false,singleRun: true,想只跑一次，发现命令行参数不起效果。npm run ng test --watch=false --code-coverage原来需要加--，这是npm传递参数给script的方法。npm run ng test -- --watch=false...

用vmware虚拟机装red hat linux9之后，连接网络总是出现问题：Determining IP information for eth0... failed; no link present. Check cable? 解决方法：修改ifcfg-eth，n通常为0 /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/syscon

换了SSL Cert之后，Nginx无法启动，发生如下错误。nginx: [emerg] cannot load certificate “/etc/nginx/ssl/test.crt”: BIO_new_file() failed (SSL: error:0200100D:system library:fopen:Permission denied:fopen(’/etc/nginx/ss..