DirectAdmin panel troubleshooting

Because VPSAA's recently launched hosts all use independent servers + DirectAdmin panels, in order to avoid forgetting, I will record some of the DA difficult problems and solutions they encountered recently, and I hope to Help for others with the same problem.

INVS: 49 rubles/month KVM-512MB/5GB/unlimited traffic/Russia

INVS.ru is a Russian hosting provider. The website says it started in 1999, and the domain name seems to have been registered since 2007. The merchant website provides virtual hosting, VPS, independent servers and other products. The website defaults to Russian, and you can switch to English or Chinese in the upper right corner (the Chinese translation is not very thorough).