이것이 무슨 에러죠? proftpd뿐만아니라.. 다른 몇개의 프로그램도 에러입니다.
도와주세요.
 # tar -xzvf proftpd-1.2.7.tar.gz
proftpd-1.2.7/
proftpd-1.2.7/contrib/
proftpd-1.2.7/contrib/dist/
proftpd-1.2.7/contrib/dist/rpm/
proftpd-1.2.7/contrib/dist/rpm/ftp.pamd
proftpd-1.2.7/contrib/dist/rpm/proftpd.init.d
proftpd-1.2.7/contrib/dist/rpm/proftpd.logrotate
proftpd-1.2.7/contrib/INSTALL.mod_wrap
proftpd-1.2.7/contrib/README
proftpd-1.2.7/contrib/README.mod_wrap
proftpd-1.2.7/contrib/README.ratio
proftpd-1.2.7/contrib/UPGRADE.mod_sql
proftpd-1.2.7/contrib/ftpasswd
proftpd-1.2.7/contrib/ftpasswd.html
proftpd-1.2.7/contrib/mod_ldap.c
tar: Skipping to next header
tar: Archive contains obsolescent base-64 headers
 gzip: stdin: invalid compressed data--crc error
 gzip: stdin: invalid compressed data--length error
tar: Child returned status 1
tar: Error exit delayed from previous errors