Where Can I Get Help with IIS particularly FTP server? on win10

I just looked through your tutorials index pdf and I think IIS and associated stuff is a bit outside of your interests but perhaps you'd know where I should go for such help?

The problem is setting up an FTP server. It all is apparently set up alright - I mean no error messages and all configurations are apparently recommended according to all instructional material I have - but connections are immediately closed by the server it say everytime:

edited output to demonstrate:

ftp> open 101.167.xxx.xxx
Connected to 101.167.xxx.xxx.
421 Service not available, remote server has closed connection.
ftp>

any help would be good.

Yep. Thanks. Just what I'm thinking of doing. win100 IIS ftp isn't so much work to set up but it quickly gets horrific (to people like me) if it doesn't work. like mine doesn't. the troubleshooting has you going everywhere. I'm now in ftp logs and further with the system telling me something can't be sure something else has permission to access somewhere.... and, of course, not doing anything 21st C like throwing up the ways of fixing it...

so i just happened a little while ago to run across a mention of filezilla's ftp server which i'd completely forgotten about. I think you might be right. I'll drop this and head for that and see if I have any more luck.

thanks for taking a look. :)

I tried filezilla but it went the way of IIS. i.e. it went in easy but then didn't work and I soon got kinda lost trying to fix it. so I uninstalled it and decided to persevere a little longer with IIS. Using GPT to help.
right now we're stuck at a place where in IIS FTP management you Test the setup It claims it cannot be sure that the user has access to the site - i.e. the ftp directory I've nominated.
It didn't say 'user' it said something else but that's what I think it meant. ( I am not at that machine right now)
So we go to that directory and try to set permissions and can't.
we were trying to find permissions for the app pool. but the app pool doesn't appear in any list to be given permissions!
we do know the default app pool is managing the ftp. It is also managing the inetpub, the IIS. It is in fact the only app pool listed.
so that's where we're at right now... trying to figure out what that all means....
gpt wants me to create another app pool. I'm not game.

zebal said:

IMO the very first thing people get wrong regarding FTP is not understanding difference between statefull vs. pasive FTP.

If by any chance you don't know how each works, I suggest to read this gem straight from my bookmarks:
Active FTP vs. Passive FTP, a Definitive Explanation

Thanks for that. A beauty. I had not known. I had to put it into my own language to fit my head which came down to these little tables:

Active
1. C cmd - S cmd Data Port
2. S cmd - C cmd Ack
3. S data - C data Init Data
3. C data - S data Ack

Passive
1. C cmd - S cmd Pasv
2. S cmd - C cmd Data Port
3. C data - S data Init Data
3. S data - C data Ack

The whole thing benefited me enormously. Up to and including the note that most browsers support only passive.
That being perhaps the most dramatic piece of news.

It may solve my problems. I don't know yet. But there's a chance. And if not then thanks to this at least I'll have some idea of what's going on.

And I got the book you mentioned. Thanks.