I use Delphi and I have a backup application. Currently I use FTP or FTPS to connect to predefined FTP Servers. I do not need to do install any special protocol on End User machine.
If I want to use SFTP Client to connect to AWS S3 for file transfer. Will I have to install SSH/Putty or anything else specially to connect ? I will be having the required PEM files and password predefined.
There's no difference between FTP and SFTP in the context of your question.
FTP and SFTP are protocols. Things like dependencies are only relevant to particular implementation of the protocol – FTP/SFTP library you will be using.
SFTP is supported under Windows:
either via a stand-alone tool like Putty,
or by using a SFTP Client library in Delphi.
The only library I used was https://www.devart.com/sbridge. It worked somewhat for TLS/HTTPS. I had to rewrite the HTTPS client since the included component was not able to keep alive a HTTP1/1 connection... and it was very slow, so I rewrite their crypto core to use our SynCrypto unit. So perhaps their SFTP client "works" but is not very stable... You may try it!
I would go into calling sftp.exe from Putty project, which is just small, efficient and very stable.
Related
I am looking for a way to make a simple ftps server that will serve a single folder containing 2 files using a dedicated username:password pair.
The issue is that for security reasons I have two requirements:
The server will not give access (even read) to anything outside the specified folder (server has world readable files that should be only accessible by users having accounts on that server)
I don't want to tie the ftp server with existing users system (the entire ftp application and its config must be independent of the server configuration)
So far every tutorial I found is using pam to configure both vsftpd and proftpd,
while I want a simple config file having username:password:folder triplet eg:
backups:s3cr#t:/backups/origin
backups2:secret:/backups/anonymized
documents:secret:/var/www/data/documents
How can I do it with either vsftpd or proftpd?
We have built a pretty complex plugin inside our system that's using the Net::SFTP gem to connect to a remote server. Everything works well.
One of our new customers, though, showed up and prepared for us a server where we can log in only with FTP, not sFTP.
Is there any workaround on how to use this gem to connect to the server using the FTP protocol? Our customer might look into adding access to sFTP. However, if this option would fall, we would need to manage it on our end.
SFTP and FTP are two completely different protocols.
Net::SFTP supports SFTP only.
I have next specific situation. I have an application using Firebird embedded server. The files: application executive, database, fbembed.dll are located in the same folder. Everything is good and working good.
Now my client says so:
I would like to place all your application file on a server and run it via local network from all workstations.
So as I see I start application on the server and it starts. But database connection string looks now like:
//SERVER/share/db.fdb
Yes, I know conventions about allowed firebird paths from here: FAQ: What's a connection string?
I do not understand what should I use with embedded server? Is it possible at all?
If you want to access a Firebird database over the network, then you need to install Firebird server and connect through the server. You can't (at least not by default) access a database from a network path, and you really shouldn't (although there is a config option to allow it), as it can lead to database corruption due to insufficient or incorrect filelocking support over the network.
So: Don't use Firebird embedded, but install Firebird server and configure the clients to connect to Firebird server.
I am building a feature-rich standalone application using dart. I picked dart since it seemed to allow not only the standard development approach for webapps but also to access system resources (such as nodejs does). One of my requirements is file io or database access (which again requires file io). Dartium however does not allow the use of the dart:io package (only in servermode is this library accessible). Can anybody think of a workaround, a change to the dart environment or the chromium environment to allow this ? Maybe a custom compiled dartVM in the browser environemnt.
Basically a way to use database connections in a dart standalone app. A REST wrapper is only an option if this code could get generated automatically.
I am not clear if such a thing is possible or if chromium will prevent any approach to access system resources.
Yes in standalone mode dart you can use files, and also TCP socket, and web socket.
So you can connect to databases. (for example to MySQL: https://github.com/jamesots/sqljocky)
In browser mode you can use built-in databases dart:indexed_db or dart:web_sql.
You can also use web-socket protocol
Maybe you can use websocket to connect with local or remote database.
I'm currently trying to add to a software the capability to list unread emails in the user's inbox using IMAP. After having no success at all using Indy10, I discovered Synapse which seemed better for what I needed, but I can't find a way to get it working.
My problem is with the login (thus I think with the SSL configuration). I can't find a working combination of "FullSSL", "Sock.SSL.SSLType" and "AutoTLS". Whenever I do the "Login()" function, it fails.
For the sake of testing, are any of you able to connect to Gmail's IMAP server using Synapse, and, if yes, how?
Having just done this myself, I might recommend that you just follow the simple example on the Synapse HowTo http://synapse.ararat.cz/doku.php/public:howto:smtpsend
The only other thing would be that you need to download the openssl dll's and place the in your project folder.
IMHO .... I would recommend that you also consider looking at CleverComponents.com at their IMAP4 with built in SSL (not requiring OpenSSL, which has some licensing restrictions) and is completely NON-Blocking sockets.
mfw is correct, but here's a clearer and more current answer.
Go to the page skamradt said and download the "Binaries" ZIP. From its Bin folder, copy these files into your EXE's folder:
libssl32.dll
libeay32.dll
In your DPR, add
uses ssl_openssl;
For GMail / port 587:
// support for upgrade session to TSL/SSL:
SMTP.AutoTLS := True ;
SMTP.FullSSL := False;
For other SMTP servers / port 465:
// support for TSL/SSL tunnel:
SMTP.AutoTLS := False;
SMTP.FullSSL := True ;
This might also work for POP / port 995. It's how I got Synapse to send mail securely in Delphi 7 + Synapse Release 40 (2012-04-23)
I suggest Mailbee IMAP ActiveX from AfterLogic.
I did the research when developing Gmail Keeper (a Gmail backup software), CleverComponnets' feature set seems good but their support is very badm they seem discontinued that promising component set, you can try to email them back and forth to see if there is anything changed since it's been a long time since I checked them last time, I indeed wish they continue their VCL.
On the other hand, afterlogic's support is really good, especially when the reasonable price is considered.
One-click to backup Gmail with labels to local disk (supports backup scheduling)
http://GmailKeeper.com
You need these libraries in your program:
libeay32.dll
ssleay32.dll