{"id":955,"date":"2017-05-29T22:57:32","date_gmt":"2017-05-29T20:57:32","guid":{"rendered":"http:\/\/www.netexpertise.eu\/en\/?p=955"},"modified":"2021-10-28T08:29:34","modified_gmt":"2021-10-28T06:29:34","slug":"determine-os-within-ftp-session","status":"publish","type":"post","link":"http:\/\/www.netexpertise.eu\/en\/systems\/linux\/determine-os-within-ftp-session.html","title":{"rendered":"Determine Operating System within FTP Session"},"content":{"rendered":"\n

The “QUOTE” keyword is essential to allow a user to run system-specific commands on FTP servers (SITE or ALLO for example). These commands do not have to be understood by FTP clients.
 
Most FTP clients send a NOOP – that actually is a dummy packet – to keep the connection up

<\/p>\n\n\n\n

ftp> quote noop\n200 NOOP ok.<\/code><\/pre>\n\n\n\n
 
QUOTE SYST returns the Operating System the FTP server runs on, or at least gives you a hint.
 
Check these 2 examples on Linux Redhat and IBM i<\/a>, the second giving a lot more details than the first with the exact version of the operating system.

<\/p>\n\n\n\n
ftp> quote syst\n215 UNIX Type: L8\n\nftp> quote syst\n215  OS\/400 is the remote operating system. The TCP\/IP version is \"V7R1M0\".<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
The “QUOTE” keyword is essential to allow a user to run system-specific commands on FTP servers (SITE or ALLO for example). These commands do not have to be understood by FTP clients. Most FTP clients send a NOOP – that actually is a dummy packet – to keep the connection up  QUOTE SYST returns the Operating […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[210,11],"tags":[418,389],"yoast_head":"\nNetexpertise - Determine Operating System within FTP Session<\/title>\n<meta name=\"description\" content=\"Find out the Operating system of the server you are running a FTP session on in a simple way with the QUOTE keyword\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.netexpertise.eu\/en\/systems\/linux\/determine-os-within-ftp-session.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Netexpertise - 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