To improve the bandwidth of the server,
ftp.kaist.ac.kr is currently changing network from KAIST's to KOREN's,
and planned to change the IP address of the server from 143.248.234.110 (KAIST) to 103.22.220.133 (KOREN).
Therefore, the IP address bound to the DNS name
ftp.kr.debian.org needs to be changed from 143.248.234.110 to 103.22.220.133.
Currently
ftp.kaist.ac.kr is bound to both IP addresses, so the change can be applied in any time.
Thank you in advance.