Error 421 Service Not Available

Managed Services Data Migration cPanel Managed Hosting About Contact Us Company Team Blog & News Knowledge Base myVelocity 888-869-4678 Chat Login 421 service not available, remote server has closed connection vsftpd Save 10, 15 or 20% when you prepay for 3, 6 421 service not available ftp linux or 12 months! What are the steps to resolve the error '421 service not available' in 421 service not available remote server has closed connection login failed case of ftp? Posted on January 30, 2013 FTP connection to the server cannot be established. FTP client returns the error: 421 Service not available, remote server has

421 Service Not Available Closing Control Connection Ftp

closed connection. Above one is the complete error , you get sometimes, while ftping to the server. Please refer the following steps to resolve it: 1. check the /var/log/messages log file on server getaddrinfo 'Hostname_Is_Here' error: Name or service not knownwarning: unable to determine IP address of 'host.domain.tld domain' This is because FTP server cannot the remote server returned an error 421 service not available closing control connection determine IP address of the server by hostname.   2. Try to PING Hostname #ping hostname If ping does not respond, you will have to define the correct hostname in the configuration files as follows and restart network service. /etc/hosts/etc/sysconfig/network/etc/init.d/network restart  3. If still the following error occurs Authentication failed for user [anonymous]   Please check whether your local machine's ip is blocked. You see that csf has blocked it. Unblock it and restart the firewall. That should solve the issue. Share on Twitter Share on Facebook KNOWLEDGE BASE HOME VIDEOS DOWNLOADS Account Operations (14) Apache (12) ASP (4) cPanel (124) Direct Admin (13) Domain Admin (19) Domain Pointer (6) Email (20) Flash (2) FreeBSD (1) FTP (11) Hardware (1) Hosting (7) Hsphere (1) Iptables (2) Linux (134) Logs (2) minecraft (1) MSSQL (7) MySQL (36) NameServers (24) NIC (1) PHP (11) phpMyAdmin (7) Plesk (76) Security (23) Softaculous (6) Spamassassin (3) ssh (4) Stargate (1) Uncategorized (32) Virtuozzo (2) Webadmin (5) WHM

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Ftp Error 421 Service Not Available Closing Control Connection

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421 Service Not Available Remote Server Timed Out. Connection Closed

Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to https://www.hivelocity.net/kb/what-are-the-steps-to-resolve-the-error-421-service-not-available-in-case-of-ftp/ the top Why do I get kicked out of a FTP session once I run a command? up vote 6 down vote favorite 3 Why do I get kicked out of a FTP session once I run a command? It seems that once I successfully login into a server is get the following after running a command such as "ls" (I've enclosed the error portion in the "[ERROR]" tags): allen92@allen92-VirtualBox:~/Videos$ ftp -n ftp.FreeBSD.org Connected to http://unix.stackexchange.com/questions/90487/why-do-i-get-kicked-out-of-a-ftp-session-once-i-run-a-command ftp.FreeBSD.org. 220 beastie.tdk.net FTP server (Version 6.00LS) ready. ftp> user (username) anonymous 331 Guest login ok, send your email address as password. Password: 230 Guest login ok, access restrictions apply. Remote system type is UNIX. Using binary mode to transfer files. ftp> ls [ERROR] 421 Service not available, remote server has closed connection [ERROR] ftp> This seems to happen on any remote FTP server. Everything works fine when I login onto the local machine and run FTP commands. If in fact the "421" error is a generic error, is there any way to find out the source of the problem? Any leads on this would be appreciated. I haven't been able to find any support on this particular issue. Anybody with an similar problem please share your thoughts. NOTE: I have VSFTPD installed. ftp share|improve this question edited Apr 27 at 18:30 Anthon 47.4k1462125 asked Sep 13 '13 at 8:45 AllenD 3723612 add a comment| 2 Answers 2 active oldest votes up vote 7 down vote accepted There is most likely a NAT-firewall between you and the servers showing the symptom. (NAT-firewalls hide a whole network behind a single IP-number). The problem is that ftp wants to send the data resulting from the command in a new, separate TCP/IP connection and that cannot go through the firewall because it needs to go fro

FTP server won't allow logins, it is probably configured correctly, http://archive.oreilly.com/pub/faqs/linux_faq_AEN3511 but the problem is probably with authorizing users at login. FTP servers in current distriubtions often authorize users with the Pluggable Authentication Modules library, in which case there should be an authorization file /etc/pam.d/ftp. A generic authorization file looks like this. (The line break on the 421 service first "auth" line is for readability. The entry is actually a single, long line). #%PAM-1.0 auth required /lib/security/pam_listfile.so item=user \ sense=deny file=/etc/ftpusers onerr=succeed auth required /lib/security/pam_pwdb.so shadow nullok auth required /lib/security/pam_shells.so account required /lib/security/pam_pwdb.so session required /lib/security/pam_pwdb.so Also, make sure the /etc/ftpusers file, or whatever users file 421 service not is named in the first "auth" line, is configured correctly. Btw, the sample ftp file above is actually theftpd/ftp.pam.sample file from the ftpd-BSD-0.3.1.tar.gz package. Many thanks to David A. Madore for this much needed port. This FAQ is from Linux Frequently Asked Questions with Answers, maintained by Robert Kiesling Sponsored by: © 2016, O'Reilly Media, Inc. (707) 827-7019 (800) 889-8969 All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. About O'Reilly Sign In Academic Solutions Jobs Contacts Corporate Information Press Room Privacy Policy Terms of Service Writing for O'Reilly Community Authors Community & Featured Users Forums Membership Newsletters O'Reilly Answers RSS Feeds User Groups Partner Sites makezine.com makerfaire.com craftzine.com igniteshow.com PayPal Developer Zone O'Reilly Insights on Forbes.com Shop O'Reilly Customer Service Contact Us Shipping Information Ordering & Payment The O'Reilly Guarantee