三大ftpd之一的Vsftpd发布3.0.1正式版.2012-09-16.上个版本是2012-04-10的3.0.0 .对比proftpd和pure-ftpd，vsftpd的性能最快，安全性也很好。
可在我的ftp上下载 ftp://61.135.158.199/pub/vsftpd-3.0.1.tar.gz
或者直接下载 https://security.appspot.com/downloads/vsftpd-3.0.1.tar.gz
完全改进：the only noteworthy fix is a seccomp sandbox policy fix which stops session crashes when listing large directories whilst logged in as a real local user.
- Fix some seccomp related build errors on certain CentOS and Debian versions.
- Seccomp filter sandbox: missing munmap() -- oops. Did you know that qsort()
opens and maps /proc/meminfo but only for larger item counts?
- Seccomp filter sandbox: deny socket() gracefully for text_userdb_names.
- Fix various NULL crashes with nonsensical config settings. Noted by Tianyin Xu
<tixu@cs.ucsd.edu>.
- Force cast to unsigned char in is* char functions.
- Fix harmless integer issues in strlist.c.
- Started on a (possibly ill-advised?) crusade to compile cleanly with
Wconversion. Decided to suspend the effort half-way through.