sftp-server connection from windows7 to linux machine

acid_kewpie · 10-10-2012, 08:55 AM

What have you been doing up until now??

netstat -plnt

and check there is no reference to :22. then start the service again.

gajananh999 · 10-10-2012, 08:58 AM

Sorry I Am new to linux platform so please excuse me...

root@ip-10-84-238-191:[/var/log]
$ netstat -plnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:928 0.0.0.0:* LISTEN 1170/rpc.statd
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1135/portmap
tcp 0 0 0.0.0.0:12981 0.0.0.0:* LISTEN 1800/pageidserver
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1511/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1562/sendmail: acce
tcp 0 0 :::8080 :::* LISTEN 2159/tnslsnr
tcp 0 0 :::1521 :::* LISTEN 2159/tnslsnr
tcp 0 0 :::37521 :::* LISTEN 2014/ora_d000_SA
tcp 0 0 :::22 :::* LISTEN 23717/sshd
root@ip-10-84-238-191:[/var/log]
$ tail -5 secure
Oct 10 19:20:48 ip-10-84-238-191 sshd[22985]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use.
Oct 10 19:21:56 ip-10-84-238-191 sshd[22985]: Received signal 15; terminating.
Oct 10 19:22:13 ip-10-84-238-191 sshd[23717]: Server listening on :: port 22.
Oct 10 19:22:13 ip-10-84-238-191 sshd[23717]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use.
Oct 10 19:24:34 ip-10-84-238-191 sudo: root : TTY=pts/1 ; PWD=/var/log ; USER=root ; COMMAND=/sbin/service ssh stop
root@ip-10-84-238-191:[/var/log]
$ /etc/init.d/sshd start
Starting sshd: [ OK ]
root@ip-10-84-238-191:[/var/log]
$ tail -5 secure
Oct 10 19:22:13 ip-10-84-238-191 sshd[23717]: Server listening on :: port 22.
Oct 10 19:22:13 ip-10-84-238-191 sshd[23717]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use.
Oct 10 19:24:34 ip-10-84-238-191 sudo: root : TTY=pts/1 ; PWD=/var/log ; USER=root ; COMMAND=/sbin/service ssh stop
Oct 10 19:27:01 ip-10-84-238-191 sshd[26174]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use.
Oct 10 19:27:01 ip-10-84-238-191 sshd[26174]: fatal: Cannot bind any address.

acid_kewpie · 10-10-2012, 09:43 AM

right so there PID 23717 is listening, which was started shortly before. So is it still not working?

If in doubt, reboot the box, then clearly nothing can persist.

gajananh999 · 10-10-2012, 11:23 AM

NO its giving the same error.

See basically What i m doing here i want to transfer some data to linux server so. So i have written one .bat file which zip the content and then it will send to linux server using a SFTP.

i will paste here sample output of batch file.

Code:

Daily Test01 Backup 
Starting backup.  Creating ZIP file... 
ZIP file created OK.  Now uploading file... 
psftp -batch -v -pw notused -b "Daily Test01 Backup_tempcommands.sftp" -bc -be -l root -P 22 -i "E:\00ISAC\03Projects\Client\Carwale\Code\zipcode\carwaleec2.ppk" 23.23.84.118 
Looking up host "23.23.84.118"
Connecting to 23.23.84.118 port 22
Server version: SSH-2.0-OpenSSH_4.3
Using SSH protocol version 2
We claim version: SSH-2.0-PuTTY_Release_0.62
Doing Diffie-Hellman group exchange
Doing Diffie-Hellman key exchange with hash SHA-1
Host key fingerprint is:
ssh-rsa 2048 be:8b:4e:ff:8c:27:e0:ca:8a:7c:73:05:a4:f8:51:28
Initialised AES-256 SDCTR client->server encryption
Initialised HMAC-SHA1 client->server MAC algorithm
Initialised AES-256 SDCTR server->client encryption
Initialised HMAC-SHA1 server->client MAC algorithm
Reading private key file "E:\00ISAC\03Projects\Client\Carwale\Code\zipcode\carwaleec2.ppk"
Using username "root".
Offered public key
Offer of public key accepted
Authenticating with public key "imported-openssh-key"
Sent public key signature
Access granted
Opened channel for session
Primary command failed; attempting fallback
Started a shell/command
Server sent command exit status 127
bash: line 2: exec: sftp-server: not found
Disconnected: All channels closed
Connected to 23.23.84.118
Fatal: unable to initialise SFTP: could not connect
File upload FAILED!!! 
File upload process complete. Deleting temporary files...
Completed backup process.

So i m not understanding where i m going wrong

acid_kewpie · 10-10-2012, 01:48 PM

stop the process and run it directly.

/usr/sbin/sshd -dd

and then with that running, try to connect and look at the debug output that is shown.

gajananh999 · 10-10-2012, 11:35 PM

i done this but same output

Code:

root@ip-10-84-238-191:[/root]
$ /usr/sbin/sshd -dd
debug2: load_server_config: filename /etc/ssh/sshd_config
debug2: load_server_config: done config len = 518
debug2: parse_server_config: config /etc/ssh/sshd_config len 518
debug1: sshd version OpenSSH_4.3p2
debug1: read PEM private key done: type RSA
debug1: private host key: #0 type 1 RSA
debug1: read PEM private key done: type DSA
debug1: private host key: #1 type 2 DSA
debug1: rexec_argv[0]='/usr/sbin/sshd'
debug1: rexec_argv[1]='-dd'
debug2: fd 3 setting O_NONBLOCK
debug1: Bind to port 22 on ::.
debug2: fd 3 setting O_NONBLOCK
debug1: Bind to port 22 on 0.0.0.0.
Bind to port 22 on 0.0.0.0 failed: Address already in use.
Cannot bind any address.

And the output of .batch file is same as earlier.

gajananh999 · 10-11-2012, 12:57 AM

Yes i got answer for this. i was adding Subsystem sftp /usr/libexec/openssh/sftp-server this to ssh_config but when i added this to sshd_config file and i restarted sshd then it started working for me.