{{short description|Free and open-source FTP server software for UNIX-like systems}} {{Lowercase title}} {{Infobox software |name = vsftpd |logo = |caption = |developer = Chris Evans |latest_release_version = 3.0.5 |latest_release_date = {{release date|2021|08|02}} |operating_system = Unix-like systems |genre = FTP daemon |license = GPL |website = {{URL|https://security.appspot.com/vsftpd.html}} }} '''vsftpd''' (or '''very secure FTP daemon''')<ref>{{cite web |url=https://linux.die.net/man/8/vsftpd|title=vsftpd(8) - Linux man page}}</ref> is an FTP server for Unix-like systems, including Linux. It is the default FTP server in the Ubuntu, CentOS, Fedora, NimbleX, Slackware and RHEL Linux distributions. It is licensed under the GNU General Public License. It supports IPv6, TLS and FTPS (explicit since 2.0.0 and implicit since 2.1.0).
== Compromised website == In July 2011, it was discovered that vsftpd version 2.3.4 downloadable from the master site had been compromised.<ref>[http://www.securityfocus.com/bid/48539/discuss vsftpd Compromised Source Packages Backdoor Vulnerability] {{Webarchive|url=https://web.archive.org/web/20210127075340/https://www.securityfocus.com/bid/48539/discuss |date=2021-01-27 }} at SecurityFocus</ref><ref name=sbs1>{{cite web |url=https://scarybeastsecurity.blogspot.com/2011/07/alert-vsftpd-download-backdoored.html |title=Alert: vsftpd download backdoored |last1=Evans |first1=Chris |date=2011-06-03 |access-date=July 7, 2011}}</ref> Users logging into a compromised vsftpd-2.3.4 server may issue a ":)" smileyface as the username and gain a command shell on port 6200.<ref name=sbs1 /> This was not an issue of a security hole in the original version of vsftpd; instead, an unknown attacker had uploaded a different version of vsftpd which contained a backdoor. Since then, the site was moved to Google App Engine.
== See also == {{Portal|Free and open-source software}} * Pure-FTPd
== References == {{reflist}}
== External links == * [https://help.ubuntu.com/community/vsftpd Guide to setting up vsftpd] including TLS/SSL encryption {{Free-software-stub}} Category:FTP server software Category:Free server software Category:Free file transfer software Category:FTP server software for Linux Category:Unix Internet software Category:Free software programmed in C Category:Software using the GNU General Public License