SSH / Telnet Software

Telnet is an application layer protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. SSH was designed as a replacement for Telnet and for unsecured remote shell protocols. The term telnet is also used to refer to the software that implements the client part of the protocol. SSH provides a secure channel over an unsecured network in a client-server architecture, connecting an SSH client application with an SSH server.

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I am incorporating a TelNet utility into my vb6 program.  I have never done anything with TelNet.  The utility I am using is this:  http://www.freevbcode.com/ShowCode.asp?ID=2839

I am using it to get data from a timing machine into my timing software in near-real time...constant stream as runners finish.  Here is what i need to know:

1)  Is there a limit to how much a TelNet client can log?  We will often have 15,000 reads to process....occasionally more.

2) Is there a limit to how much "density" a TelNet client can log simultaneously.  We could easily have 50-100 folks finish in a minute and each one of them typically generates 2-4 RFID reads.

3)  What do I do if I need to get data that is in the source file before I start the TelNet client?  In other words, it is not unusual to carry the timing box to a different place for the race start than where we set up for the finish.  We typically carry our timing box to the start, get all the start reads as the race starts, and then carry the timing box back to the finish and re-connect our timing mats.  How would TelNet get me that data?

Thank you very much!
0
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When I attempt to log in to my iSeries server via Putty (Port 22) - I am connected to the server, but when I attempt to log in, I get "Access Denied"

I compared my SSHD_CONFIG to other systems and everything appears to be the same.

I verified that other users get the same thing - so this is not related to any specific user...

Any assistance would be much appreciated.
0
I am trying to find a solution for a client which will allow them to push all SSH traffic over remote access VPN? they are also requesting that it must have split tunneling and all http/https traffic must go out over the local internet. Is this even possible? they currently have a fortigate, which says no its not possible, I've called a few other vendors who say their VPN solutions are not capable of that. I know in cisco you can force specific sites to go over the VPN but you need specific IPs and it is not recommend. OpenVPN might be able to do it but I might be misinterpreting what I'm finding. Has anyone come across something like this before and can point me in the right direction?

Basically this client has a lot of remote workers who download large images which is why split tunneling is a must. They work through AWS and SSH into the boxes. The security for this is getting out of hand as they have a lot of servers and they are putting everyone's public IP in the security settings to allow them to access the servers. They no longer want to do this and only use their public IP for security reasons so we are trying to get a baring on how one would be able to accomplish this as they want 1 point to cut all access to the servers if a user would leave or be terminated.
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Is there a way to connect one device with another via TelNet in vb6 code?  I need to connect my laptop with a race timing machine so that I can pull data from the timing machine as it comes and and process it for near-real time race results.  I am working with PuTTY now but hoping to "remove the middle man" and do it within the program.

Thank you in advance!
0
I need to use PuTTY to TelNet to multiple timing systems, each with their own ip address, but daisy chained to one another as well.  How can I do that?  I need live streaming to happen from each timing box to a local file (different file for each timing system).  I have hardly used PuTTY but it looks like I can only connect to one ip address with PuTTY.  Can I run multiple instances of PuTTY simultaneously?

Thanks in advance!
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Hi ..
I need to run some commands on a remote machine using ssh . What is the best way to automate this in Python?
I need to log in with a (known) password to the remote machine, so I can't just use ssh user@remotehost.
I'm wondering if there's a built-in module in python I could use or I need to install one.
If you have a sample script is highly appreciated.

Thank you for your help.
0
Hello!

I've been trying for weeks to get a solution working to backup Windows clients to a remote Linux based NAS (QNAP).

I've got things working on one laptop but I'm having difficulty deploying the solution on a second laptop.  I tried to keep good documentation of my process but, it was mostly trial and error and I'm performing admin duties in addition to my main responsibility so, my focus was constantly disrupted.  

Anyway - here's what works on the first laptop:
rsync -azv -e "ssh -p 1722 -i C:\Users\<myuser>\Documents\.ssh\id_rsa" . <myuser>@mydomain.dyndns.org:/share/homes/<myuser>/backup/

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Broken down that's:
1.  rsync through ssh
2.  specifying an alternate port for ssh (-p 1722)
3.  Pointing ssh to an identity file (-i C:\Users\...\id_rsa)
4.  Giving rsync the current directory as the source (.)
5.  Logging into the user at the remote server
6.  Giving rsync /share/homes/user/backup/ as the destination on the remote server (a folder named "backup" in the directory where QNAP is storing user home folders)

So, I can run that on the first windows 10 laptop and it works but when I run it on the second, it balks about:
"Could not create directory /home/<myuser>/.ssh"

But if I just run this:
ssh -p 1722 -i C:\Users\<myuser>\Documents\.ssh\id_rsa" . <myuser>@mydomain.dyndns.org

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I'm transported to the users home directory.

:/

Any ideas of places where I should look?  Permissions on all of the folders involved?

THanks in advance!
0
If I ssh to connect to a CentOS Linux server - and from that server I want to open
say five SSH sessions and tab or control or however jump back and forth between
those five session - how could one do that?  Is that a standard capability?
0
Dear Experts,

I am thinking to use SSIS to do the following procedure.

(1) copy many files to Linux machines. then
(2) execute a Linux program (command) to analysis those files. The program will output the result to the local Linux drive
(3) when (2) is done, then pull the result back to Windows machine

For (1) I am thinking of FTP task (by FTP or SFTP)

how about the task of (2) and (3) ?  Could you please help ... Thanks
0
This is using IBM storwiz v3700 storage. The SSH service is available and we can connect with this SSH by using the assigned user account with correct password. BTW, how to change so as instead of using password, create the key-pair for the dedicated user account?

Thanks in advance.
0
JavaScript Best Practices
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I need to provide a SFTP service to let my data providers upload files securely.

Do you know a good and affordable hoster?

I don't feel comfortable opening my servers to the web!
0
Previously when we transferred a 20GB gz  Solaris file down to PC's
local HDD & then from the local PC HDD, transfer to a USB HDD, our
DLP corrupted the gz file when it's transferred from local HDD to USB

We have since resolve that but to prevent untoward corruption in
future for copying of critical files to USB HDD,

Q1:
Does Winscp has checksum feature that checks at Unix end & at
PC end?

Q2:
If so I would rather use Winscp to transfer directly to USB HDD.
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BitVise SSH Client
I am new to sFTP.  I installed BitVise SSH Client successfully.  I can connect SSH Server via GUI and download files ok.  But I want to automate and download files without going through GUI.  Any suggestions for command-line script for file download?  I think sftpc is the one to use.  But I don't know to use it.  My setting is Initial method: publickey. Client key: Profile 1.  

sftpc 'SSH Server Name' - I could connect to the remote SSH Server. Then, it prompts for Password.  But there is no password.

Thank you very much in advance.
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Hi Experts,
can someone explain the procedure for generating certificates.

I am new to this I want to Generating private key for SFTP connection, i have a file that has a *.asc extension and i want to generate to private key and send it to third party.

Thank you,
0
I have several linux systems. Normally I login on them with my account, and after I login i execute sudo -s, so I can get admin privileges.
Sometimes I need to edit some files or copy some files out of the linux systems and in the past I ofter used the winscp program.
Unfortunately when I login with winscp with my account I don't have admin privileges, and thus I am not able to open and edit needed files, I am not able to copy files out of the system. Can you tell me how to login with winscp with admin privileges
0
My company has setup an Ubuntu 18.04 server, to exchange files with a client, via SFTP.  We need a high level of security.  We're trying to require authentication with SSH key pairs, AND the Linux OS username and password (not the SSH passphrase). We've got the key pairs working, but it doesn't ask for the password. I'm assuming we're just missing something in the sshd_config file. Hopefully we're not trying to do something that's not possible. Any assistance would be much appreciated.

Thanks!
Mark
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Hi, when I finished installing OpenSSH, I got the following warning:

Permissions 0640 for '/etc/ssh/ssh_host_ecdsa_key' are too open.

Could you please give me the command line to safely change and set the proper permissions for this folder and its files?

Server: Red Hat Enterprise Linux Server 7.5

Thanks

Jorge Batres
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I am running a Centos 7 linux server, i am runnin open ssh server, and client. I did a recent test to see if the ssh is working correctly, and what i found out was i could only using my internal IP address to access my server from my workstation. I tried to use the public static ip and i get a timed out error. I checked my ports 21,22,  to make sure they are open through port forwarding through my wireless router. They check out to be open, I am using firewalld as a firewall, and i  did notice that my selinux gave me an message basically asking me do i want the sshd server access to a particular file. I am not sure if selinux is the issue. But i want to find out if it is a permission problem, or  selinux issue. The actual sshd server when checked on staus shows it is running fine. Please help
error2.PNG
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I removed the public SSH key from a server I was managing. THen I generated a new key and overwrote the old one on my laptop. THen I added the key to the server. it added two keys.

I thought it would be best practice to remove the old key and put the new one in. It seems like my old key is still being added to the server. Am I overthinking this?

Does it really not matter and should you not bother with changing SSH keys? I was going to change them by the business quarter.
0
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Hi guys

I'm trying to set up an SFTP server for our company to use. I have a Windows 2012 server and have started to go down the open ssh route etc.

Do you guys have any guides one could follow or recommendations you would make?

If people think Linux would be a better route, then I can go down that route too. I need something that will be stable and not lose/drop connectivity because of some sort of service that needs restarting all of the time etc.

And I have to do this within the next 3hrs:).


Thanks for helping
Yash
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Would someone have an explanation for this?

Both times I have run this script.

vmkfstools -i "/vmfs/volumes/Date-2016/00 - DNS Server/00 - DNS Server.vmdk" -d thin "/vmfs/volumes/DES Lessons/00-DNS-Serve
r/00 - DNS Server.vmdk"

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It gets to around 45%, and then jumps to 100%


Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/Date-2016/00 - DNS Server/00 - DNS Server.vmdk'...
Clone: 100% done.

However, the actual size is 50GB
But the file transferred is only 16GB


00 - DNS Server.vmdk
16.53 GB
Sunday, May 20, 2018, 12:48:59 -0400

This is the actual size


00 - DNS Server.vmdk
50 GB
Saturday, April 28, 2018, 08:23:53 -0400

I have 7 VMs that need to be moved to a new drive, and this is causing some major slowing down issues.
Any ideas?

Also, if using the vmkfstools GUI is a better route to go, that would complete this without this issue.
Then please, tell me how to use the GUI, as I cannot find any information on using it.

Carrzkiss
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Hello All;

I have a 1TB drive of which has 11 VMs on it.
Taking up about 95% of the space.
I purchased some 500GB driver, I am in the process of moving the VMs over.

What I have done.
#1:
Using the datastore, I chose the VMs and I "Moved" them.
It is going to take a few days to move the ones I selected over, about 426GB.

#2: I tried the OpenSSH
Just to move one of the VMs over that is 60GB, will take over 24-hours.

Code for the SSH

[root@localhost:/vmfs/volumes/5b005dd5-2ce20e85-e704-001517fcd2e8] scp -r "00 - DNS Server" root@192.168.2.101:/vmfs/volumes/Date-2016/"00\\-\\DNS\\Server"

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How can I make this go faster?
It is only going from one drive to another drive, on the same server.

Thanks
Carrzkiss
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I have a Dell laptop (running Windows 10) where I'm hosting OpenSuSE Linux (Leap 42.3) in a virtual machine. Although I can ping the virtual machine, I haven't been able to connect to it using the SSH protocol. As far as I can tell, the secure shell demon is running on the Linux system. I've tried a couple of SSH Windows clients – specifically, SecureCRT and SecureFX. Additionally, I've tried running the SSH client from the Windows command prompt. I haven't seen any error messages. Instead, the connection simply times out.

Networking is not my forte, but I'm familiar with SSH. I've configured it on UNIX systems many times, but that was years ago. These days I'm doing so only on rare occasions. Consequently, there's usually some small detail that I overlook. Any assistance would be greatly appreciated!
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Unable to access FTP server using local account created.  Ftp server is 2003 and not using IIS, but OpenSSH.
User seems to have all the permissions needed to access through WinSCP, but I keep getting the access denied message when attempting to connect.
I'm not sure whether or not I did not add this user somewhere with permissions, whereas I am not an avid FTP server administrator.
Any help would be appreciated.
0
how can I ssh to a linux box and copy the key to the destination in one command

someone showed me this once it is l or ssh-L or somelike that
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SSH / Telnet Software

Telnet is an application layer protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. SSH was designed as a replacement for Telnet and for unsecured remote shell protocols. The term telnet is also used to refer to the software that implements the client part of the protocol. SSH provides a secure channel over an unsecured network in a client-server architecture, connecting an SSH client application with an SSH server.

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SSH / Telnet Software
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