message "nf_ct_ftp: dropping packet" is output on ftp server

Solution Verified - Updated -

Issue

  • The following message had been output on a server the vsftpd is working.
    kernel: nf_ct_ftp: dropping packetIN= OUT=eth1 SRC=<IP Address> DST=<IP Address> 
      LEN=90 TOS=0x00 PREC=0x00 TTL=64 ID=14581 DF PROTO=TCP SPT=21 DPT=42213 
      SEQ=6214852 ACK=4228557922 WINDOW=115 RES=0x00 ACK PSH URGP=0 UID=0 GID=0
  • What is the the root cause by which this message is output?

Environment

  • Red Hat Enterprise Linux
  • Tracking ftp with conntrack

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.