APLawrence.com -  Resources for Unix and Linux Systems, Bloggers and the self-employed

Title Last Comment
Kerio Control Certificate is not valid yet  
- Kerio Control Certificate is not valid yet - what could cause that strange message? This really had me scratching my head. -

Kerio Connect 8.4  
- Kerio Connect 8.4 concentrates on Webmail but also introduces multiserver -

Hacked at my own site  
- Well, not really hacked but a password exposed and that's pretty bad! -

Better Spam Control  
- Better Spam Control - Spamassassin won't cut it today -

Kerio Control 8.4  
- Kerio Control 8.4 guest network is helpful and not just for guests -

Kerio Troubleshooting January 2014  
- Looking at some Kerio related troubleshooting/support incidents from last month. -

Understanding Kerio Control Content Filtering   2013/12/18 anonymous
- It's easy to become confused when adding rules for Kerio Connect content filtering. Here's some basic advice. -

Protect against unauthorized use with Kerio Connect User Access policies   2013/12/12 TonyLawrence
- Kerio Connect User Access policies can help protect you from unauthorized mail use. -

Linode hosting for Kerio Connect  
- Using Linode.com for self hosting Kerio Connect mail server or other services. -

Restoring a lost public folder in Kerio Connect  
- How to restore a lost public folder in Kerio Connect without bringing back all the folders if there have been changes to some of them since the backup you will use for the restore. -

How to choose a mail server for your small business  
- Email is close to absolute necessity for any business today. How you handle email is important. Do you want your company to be "[email protected]"? Probably not. -

Is VoIP Telephone service right for you or your business?   2013/12/11 BigDumbDinosaur
- From Magic Jack to full blown PBX systems, VoIP is a technology that might save you money and definitely can offer desirable features. -

Kerio Connect KOFF vs. KOC  
- Kerio Connect offers two versions of its Outlook Connector, KOC and KOFF. Why would you use one vs. the other? -

Handling Kerio Connect attachment blocking  
- If you get a lot of junk attachments but still need some customers to send files, what can you do? Here is a simple solution. -

The boss lost some email!   2014/06/06 TonyLawrence
- Oh, that can't be good! If the boss has lost some of his email, here are your options. -

Monitoring Kerio Connect for suspicious activity  
- If you suspect that user's email has been compromised, here is a script that can help. -

Packet Dump in Kerio Control  
- Packet Dump used to be a hidden option in Kerio Control and you needed ssh to get the logs or even to remove them. That's no longer the case.` -

IPS in Kerio Control  
- You may never have even looked at IPS in Kerio Control or ever need to. It's there when you need it, though. -

DNS Forwarding in Kerio Control  
- DNS Forwarding in Kerio Control can be pretty powerful stuff. Learn its ins and out here. -

LOD Communications, Inc.
Who's been reading my email?   2013/07/02 DaveGillam
- The boss noticed that some emails he did not read were marked as read - who was responsible? -

An unusual DNS issue  
- An unusual DNS issue threatens a paycheck - and I still don't know what went wrong -

Getting a list of recursive SPF records   2013/06/29 TonyLawrence
- Should Kerio Connect have a function to automatically whitelist a valid SPF check? I think maybe they should. -

How to share folders and calendars with the Kerio Outlook Connector   2014/05/14 conrad
- There is the obvious way, but that's completely wrong. Learn how to share and subscribe correctly. -

Important changes coming in Kerio Control   2013/09/21 TonyLawrence
- The 8.1 release of Kerio Control contains a number of important new features. Some require a bit of explanation. -

Why Kerio should implement Milters   2014/04/04 anonymous
- Why Kerio should implement Milters or something very much like it -

Monitoring a user's email  
- How to monitor employee's email activity with Kerio Connect -

Using Samepage for off-site backup   2013/06/21 TonyLawrence
- Although this is a trivial use and is not a substitute for true system backup, using Samepage for individual files does have advantages. -

Websockets and Kerio Control  
- How to set your Kerio Control proxy to work with websockets -

Advanced Search features in Kerio Connect Webmail  
- The Kerio Connect Webmail Client has some advanced search features you may not have noticed. -

How to upgrade Kerio Connect Mail Server  
- Most of the time, upgrading Kerio Connect is simple and quick. Here is some help when it isn't. -

E-Mail to everyone in your Kerio Connect domain  
- Multiple ways to have an 'everyone' address without getting spammed -

Hosted vs. On Premise Email   2013/06/28 TonyLawrence
- Hosted email makes sense for some, but there are disadvantages to consider. Here, I want to look at the things you should consider before shutting down your in-house mailserver. -

X-Envelope-To: vs. To:   2013/06/14 TonyLawrence
- How did my customer get email apparently addressed to someone else's domain? -

Kerio Control Connection Limit Reached Alert  
- While this alert might indicate suspicious activity, it might just be something simple that you forgot about. -

Multiple Spam folders with Kerio Connect  
- A poorly documented feature in Kerio Connect allows you to sort out spam biy its Spam score. -

Whatever happened to Winmail.dat issues?  
- It's been a few years since I've seen a winmail.dat attachment or had someone ask about one. -

Creating Contact Groups from Mail Groups  
- Contact Groups have advantages over Mail Groups. Here's how to convert them. -

Unsupported use of KMSRECOVER for moving Kerio Connect  
- Although this seems to be unsupported by Kerio, it appears that you can use this method when transferring Kerio Connect to new hardware. -

Kerio Connect Contact Groups instead of Mail Groups for internal use  
- Contact Groups (Distribution Lists) offer several advantages over Mail groups. You might consider transferring some or all of your groups to this format. -

Kerio Connect Mailserver.cfg warning   2013/06/05 TonyLawrence
- Warning: the Kerio Connect mailserver.cfg.bak file is NOT what you probably think it is! -

Exposing hidden data (API method)  
- A simple API script to expose group membership to local users. -

Exposing hidden data to users  
- A simple script to expose group membership to local users. -

Kerio Support now 24 x 7  
- Kerio now offers English language support round the clock. Nothing changes for my customers, however. -

Don't make this mistake in your firewall rules   2013/05/20 TonyLawrence
- A name is not a rule, and other things you need to understand about url filtering -

Instant Messaging in Kerio Connect   2014/06/25 TonyLawrence
- At first I thought adding Instant Messaging to a mail server was utterly pointless. However, it really isn't. -

Checking DNS Black List Usage on Kerio Connect  
- Examining blacklist usage can help you fine-tune your spam fighting tools on Kerio Connect. -

Operator CDR records   2013/02/25 TonyLawrence
- Sending Operator CDR data to an auditing machine should already be part of Operator, but isn't. This code provides the function. -

Transferring a Kerio Connect Server with rsync   2013/07/03 TonyLawrence
- One particular advantage of using rsync is that you can transfer most of the data without shutting down your existing server. -

Group Voicemail in Kerio Operator  
- How to enable group voicemail when using Connect/Operator Integration -

Kerio Samepage - Concerns and Promise   2014/07/03 TonyLawrence
- Why Kerio has replaced Workspace with Samepage and why it matters -

Disaster Planning for Kerio Connect Mail Server  
- What can you do to ensure email continuity in the event of a disaster? For very reasonable fees, these folks have a solution specifically for your Kerio Connect server. -

Transferring from Kerio Connect to another mail server   2014/04/07 TonyLawrence
- While I never like losing a customer, sometimes people want to move away from Kerio Connect. That's not hard to do. -

Connect delete bug  
- This is an unusual bug in the Kerio Connect 8 Web Client that few users are likely to see. -

Kerio Control with multiple Internet Interfaces   2014/01/24 basit
- If you have more than one Internet connection, Kerio Control can configure and use these in different ways. Learn how here. -

Archiving mailboxes   2012/12/04 TonyLawrence
- Archiving mailboxes for better performance or to save server space; Outlook Auto Archive details -

Simple debugging with Kerio Control  
- An easy way to use Control as a network sniffer by creating useless rules and adding Accounting logging. -

A Verizon FIOS STB and a Kerio Control router   2013/01/20 anonymous
- Verizon provides a router that is needed for their Video on Demand and other TV services to work. How can we use a Kerio Control box with that? -

Understanding X-Loop forwarding headers  
- How the X-Loop header works and how Cpanel apparently breaks it. -

Examining Kerio Control Traffic Rules   2012/11/08 TonyLawrence
- A simple Perl script helps display Kerio Control traffic rules. -

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