Hi
Could someone explane this behavior with gftp-text :
Connected to 10.0.20.55:4021
220 FTP
AUTH TLS
234 AUTH TLS successful
SSL connection established using TLSv1.3 (TLS_AES_256_GCM_SHA384)
PBSZ 0
200 PBSZ 0 successful
PROT P
200 Protection set to Private
USER test
331 Password required for test
PASS xxxx
230 User test logged in
FEAT
TYPE I
200 Type set to I
PWD
257 "/" is the current directory
ftp> cd test/
CWD test/
250 CWD command successful
PWD
257 "/test" is the current directory
ftp> ls
Loading directory listing /test from server (LC_TIME=en_US.UTF-8)
EPSV
229 Entering Extended Passive Mode (|||60001|)
MLSD
150 Opening BINARY mode data connection for MLSD
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
226 Transfer complete
drwxr-xr-x test www-data 4096 May 19 07:03 ..
drwxr-xr-x test www-data 4096 May 14 20:34 test
-rw-r--r-- test www-data 8388608 May 14 20:32 binfile0
-rw-r--r-- test www-data 8388608 May 14 20:33 binfile1
-rw-r--r-- test www-data 176 May 14 20:34 textfile0
-rw-r--r-- test www-data 44 May 14 20:31 textfile1
ftp> get binfile0
Loading directory listing /test from cache (LC_TIME=en_US.UTF-8)
Looking up 10.0.20.55
Trying 10.0.20.55:4021
Connected to 10.0.20.55:4021
220 FTP
AUTH TLS
234 AUTH TLS successful
SSL connection established using TLSv1.3 (TLS_AES_256_GCM_SHA384)
PBSZ 0
200 PBSZ 0 successful
PROT P
200 Protection set to Private
USER test
331 Password required for test
PASS xxxx
230 User test logged in
FEAT
TYPE I
200 Type set to I
CWD /test
250 CWD command successful
PWD
257 "/test" is the current directory
Successfully changed local directory to /home/nba/over-tls/ftps-over-tls
Successfully changed local directory to /home/nba/over-tls/ftps-over-tls
EPSV
229 Entering Extended Passive Mode (|||60003|)
RETR /test/binfile0
150 Opening BINARY mode data connection for /test/binfile0 (8388608 bytes)
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
\ [============================================================] @ 1429.00KB/s
226 Transfer complete
Successfully transferred /test/binfile0 at 1429.00 KB/s
Successfully changed mode of /home/nba/over-tls/ftps-over-tls/binfile0 to 644
Successfully changed the time stamp of /home/nba/over-tls/ftps-over-tls/binfile0
ftp> cd test/
CWD test/
ftp> ls
Loading directory listing /test from cache (LC_TIME=en_US.UTF-8)
drwxr-xr-x test www-data 4096 May 19 07:03 ..
drwxr-xr-x test www-data 4096 May 14 20:34 test
-rw-r--r-- test www-data 8388608 May 14 20:32 binfile0
-rw-r--r-- test www-data 8388608 May 14 20:33 binfile1
-rw-r--r-- test www-data 176 May 14 20:34 textfile0
-rw-r--r-- test www-data 44 May 14 20:31 textfile1
ftp> get binfile1
Loading directory listing /test from cache (LC_TIME=en_US.UTF-8)
Looking up 10.0.20.55
Trying 10.0.20.55:4021
Connected to 10.0.20.55:4021
220 FTP
AUTH TLS
234 AUTH TLS successful
SSL connection established using TLSv1.3 (TLS_AES_256_GCM_SHA384)
PBSZ 0
200 PBSZ 0 successful
PROT P
200 Protection set to Private
USER test
331 Password required for test
PASS xxxx
230 User test logged in
FEAT
TYPE I
200 Type set to I
CWD /test
250 CWD command successful
PWD
257 "/test" is the current directory
Successfully changed local directory to /home/nba/over-tls/ftps-over-tls
Successfully changed local directory to /home/nba/over-tls/ftps-over-tls
EPSV
229 Entering Extended Passive Mode (|||60003|)
RETR /test/binfile1
150 Opening BINARY mode data connection for /test/binfile1 (8388608 bytes)
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
| [============================================================] @ 1434.60KB/s
226 Transfer complete
Successfully transferred /test/binfile1 at 1434.60 KB/s
Successfully changed mode of /home/nba/over-tls/ftps-over-tls/binfile1 to 644
Successfully changed the time stamp of /home/nba/over-tls/ftps-over-tls/binfile1
ftp> cd ..
CDUP
Interresting part are :
ftp> get binfile0
Loading directory listing /test from cache (LC_TIME=en_US.UTF-8)
Looking up 10.0.20.55
Trying 10.0.20.55:4021
Connected to 10.0.20.55:4021
220 FTP
AUTH TLS
234 AUTH TLS successful
...
and
ftp> get binfile1
Loading directory listing /test from cache (LC_TIME=en_US.UTF-8)
Looking up 10.0.20.55
Trying 10.0.20.55:4021
Connected to 10.0.20.55:4021
220 FTP
AUTH TLS
234 AUTH TLS successful
...
Why does gFTP (gftp-text) reconnect the CONTROL CHANNEL which is already established at each download try ?
I understand a new PASV / EPSV / EPRT command must be issued by client to establish data transfert BUT I don't understand why it try to reconnect the control channel ...
Please note that gftp-gtk DO NOT have this behavior.
Here is output log from GUI (sorry in desktop language: french) :
220 FTP
AUTH TLS
234 AUTH TLS successful
SSL connection established using TLSv1.3 (TLS_AES_256_GCM_SHA384)
PBSZ 0
200 PBSZ 0 successful
PROT P
200 Protection set to Private
USER test
331 Password required for test
PASS xxxx
230 User test logged in
FEAT
TYPE I
200 Type set to I
PWD
257 "/" is the current directory
Chargement du répertoire / depuis le serveur (LC_TIME=fr_FR.UTF-8)
EPSV
229 Entering Extended Passive Mode (|||60001|)
MLSD
150 Opening BINARY mode data connection for MLSD
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
226 Transfer complete
CWD /test
250 CWD command successful
PWD
257 "/test" is the current directory
Chargement du répertoire /test depuis le serveur (LC_TIME=fr_FR.UTF-8)
EPSV
229 Entering Extended Passive Mode (|||60000|)
MLSD
150 Opening BINARY mode data connection for MLSD
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
226 Transfer complete
Changement réussi du répertoire local vers /home/nba
EPSV
229 Entering Extended Passive Mode (|||60007|)
RETR /test/binfile0
150 Opening BINARY mode data connection for /test/binfile0 (8388608 bytes)
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
226 Transfer complete
Transfert réussi de /test/binfile0 à 1422,66 ko/s
Changement de mode réussi de /home/nba/binfile0 en 644
Changement réussi de l horodatage de /home/nba/binfile0
Changement réussi du répertoire local vers /home/nba
EPSV
229 Entering Extended Passive Mode (|||60003|)
RETR /test/binfile1
150 Opening BINARY mode data connection for /test/binfile1 (8388608 bytes)
SSL data connection established using TLSv1.2 (ECDHE-ECDSA-AES256-GCM-SHA384)
226 Transfer complete
Transfert réussi de /test/binfile1 à 1391,77 ko/s
Changement de mode réussi de /home/nba/binfile1 en 644
Changement réussi de l horodatage de /home/nba/binfile1
...
Is this reconnection of gftp-text before every download a normal behavior ?
What could explane this behavior of gftp-text and the "normal" behavior of gftp-gtk ?
Thanks for help
Kind regards
nbanb
Hi
Could someone explane this behavior with
gftp-text:Interresting part are :
ftp> get binfile0 Loading directory listing /test from cache (LC_TIME=en_US.UTF-8) Looking up 10.0.20.55 Trying 10.0.20.55:4021 Connected to 10.0.20.55:4021 220 FTP AUTH TLS 234 AUTH TLS successful ...and
ftp> get binfile1 Loading directory listing /test from cache (LC_TIME=en_US.UTF-8) Looking up 10.0.20.55 Trying 10.0.20.55:4021 Connected to 10.0.20.55:4021 220 FTP AUTH TLS 234 AUTH TLS successful ...Why does gFTP (
gftp-text) reconnect the CONTROL CHANNEL which is already established at each download try ?I understand a new PASV / EPSV / EPRT command must be issued by client to establish data transfert BUT I don't understand why it try to reconnect the control channel ...
Please note that
gftp-gtkDO NOT have this behavior.Here is output log from GUI (sorry in desktop language: french) :
Is this reconnection of
gftp-textbefore every download a normal behavior ?What could explane this behavior of
gftp-textand the "normal" behavior ofgftp-gtk?Thanks for help
Kind regards
nbanb