Hello,
I have installed ehcp latest version.
I want report about vsftp on ubuntu 14.04 information.
1.If I use apt-get upgrade this command.It's will upgrade vsftpd version.This version will get follow error:

libgcc_s.so.1 must be installed for pthread_cancel to work

Please check it.
2.If I reinstall ehcp attach vsftp file.It's need follow setting.

seccomp_sandbox=NO
allow_writeable_chroot=YES

Because it's will show error if no two settings:
500 OOPS: vsftpd: refusing to run with writable root inside chroot()
500 OOPS: priv_sock_get_cmd

Thanks a lot.