After the basic archlinux system is installed, you must use the pacman tool to update the system and install new software. You can use the aria2 tool to greatly increase the download speed. Aria2 is a download tool similar to thunder. It can be used to download multi-threaded multipart download files, saving a lot of time.
Today, the habitual Pacman-syu finds that files cannot be downloaded and always reports a timeout error. I searched the internet and found that a senior friend also reflected this problem in the forum of archlinux. The solution is to upgrade the C-Ares library. After reading the log of aria2c, it does mean that there is a problem with domain name resolution, and C-Ares is the database for DNS domain name resolution used by aria2. So I used ABS to manually create a C-Ares package. ABS is not the latest version. I changed the pkver to the latest version and removed the MD5 verification code, a c-Ares package is generated. After installation, the package is still incorrect and depressing...
I want to upgrade aria2 and solve the problem.