Linux, 32-bit Redhat core 8, TLS/SSL yes (but not necessarily used in those connections I don't think), running inside tomcat 5.5.x
Haven't noticed the LAST_ACK building up again but will be keeping an eye Thanks, Dan -----Original Message----- From: David Latorre [mailto:dvl...@gmail.com] Sent: May-10-10 12:16 PM To: ftpserver-users Subject: Re: Netstat and LAST_ACK hanging Hello Dan, Can you describe your environment? Version, configuration, SSL or not... We had some problems with hanging connections but those were solved before 1.0.4 (probably they are solved in all the 1.0.x distributions). 2010/5/10 Dan <d...@tipjarawards.com>: > Our server is running but over time it hanged and the netstat gave > this kind of output (endless connections waiting for LAST_ACK). Are we > missing something to clean up these connections if the client leaves them hanging? > Is there a timout we can use? > > Thanks, > > Dan > > Here is the output from netstat -taupe | sort > > ... > tcp 1 1 ip-10-194-154-81.ec2.in:ftp > ::ffff:206.162.148.12:16093 LAST_ACK root 0 - tcp > 1 1 ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16225 > LAST_ACK root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16328 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16380 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16513 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16778 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16906 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16924 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:16981 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17091 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17097 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17218 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17273 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17742 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17821 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17825 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:17872 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18188 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18393 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18417 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18465 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18517 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18894 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18958 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:18978 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19110 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19128 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19237 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19460 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19654 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19789 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19905 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:19975 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:20023 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:20091 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:20484 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:20498 LAST_ACK > root 0 - tcp 1 1 > ip-10-194-154-81.ec2.in:ftp ::ffff:206.162.148.12:20503 LAST_ACK > root 0 - ... > >
