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SCOTIA SYSTEMS BLOG




Why did they remove telnet from Vista?

June 13th, 2009 admin

The last post reminded me..

Try and run telnet on vista and you’ll be greeted with a “command not found” :-(

It’s easiyresolved – can be added using programs and features (yup – premove programs with a different name).

But why has it been removed?  I can’t see it as a security flaw? A telnet “server” – yes, but a telnet client??

At least it’s still in there somewhere….





DNS Blacklist (Email server blocked sending)

June 13th, 2009 admin

Had a client with a blocked SMTP server this week.   After taking a look at a few bounce messages it became evident that the connection had just been terminated by the remote host.

Verifying the problem is possible, using telnet to the remote host on port 25 from your local mail server:

telnet <remote mail server> 25

If you get disconnected immediately – you’re probably getting blocked as a spam sender.   Here’s a useful site to check the status of your mail server with a variety of filters:

http://www.mxtoolbox.com/blacklists.aspx

After clearing an erroneous block, mail started flowing again (albeit after a few hours).

I’ll be keeping an eye on the above site for any further warnings on this mail server….





Free SEO Browser

June 13th, 2009 admin

Delving into SEO – I came across this site recently:

http://www.seo-browser.com/

Gives you good view into how the search engines view your site.   A good place to start if you’re tweaking your site for SEO.