Trust your Gut in Troubleshooting?

I really do trust my gut instincts. Even to me, that sounds like an odd thing to say. I'm a very logical and procedural person: a lot of the troubleshooting and problem solving I do is step by step, this follows from that, flow-chart, check-list, cause and effect all the way. And yet.. I trust my gut.

Title  Last Comment
Apple News Crashes on IOS 9  
- Apple, shame on you. If you can't make this work right, don't do it at all -

How do I forward iCloud email?  
- How do I forward iCloud email? I didn't know people had sent me mail! -

Missing email in Kerio Connect Webmail client but shows in old Webmail?  
- Missing email in Kerio Connect Webmail client but shows in old Webmail? -

My iPad can't get email!  
- My iPad can't get email! Scrabble also has stopped working. -

What does Boot Unix No Sync mean?  
- I ran fsck and when it finished I got a message telling me to Boot Unix No Sync - what does that mean? -

How can I switch to Gmail?  
- How can I switch to Gmail? Hundreds of people know my current email? -

Setting hosts connection limits in Kerio control  
- Setting hosts connection limits in Kerio control -

Kerio Connect Server is not responding. Please check your Internet connection  
- Kerio Connect Server is not responding. Please check your Internet connection. -

All my Outlook rules went missing!  
- All my Outlook rules went missing, but weirdly they seem to still be working! -

Kerio Control configuration changes reverted  
- A simple traffic rule was intended to allow ssh access to an internal machine but it refused to record, offering a strange reason -

Shell script cannot test for the existence of files  
- My shell script needs to move certain files to another location. How do I test that the files exist? -

Configuration changes reverted  
- Configuration changes reverted because rule would break your connection - a vague message, but a simple solution -

Retransmission messages in Kerio Operator Warning log  
- What do retransmission timeout messages in the Kerio Operator Warning log really mean? -

Debugging Host Connection Limit Reached on Kerio Control  
- The Packet Dump feature in Connect's Debug log gives you an easy way to debug excessive connections to a host. -

Kerio Connect version 8.5  
- Exchange Activesync will work with Outlook 2013 and Kerio, but it has severe limitations. No more unsupported Active Sync devices option needed! -

How do I see what was actually delivered by Kerio Mailing Lists?  
- How do I see the data from them? Like what was delivered and possibly opened? Is there anyway to verify that they all went out? -

Handling retired addresses with Kerio Connect  
- How to handle ex-employees who still get important mail -

Why is good email suddenly being marked spam?  
- Why is a lot of what for years has been good mail (like from UPS and the Washington Post) now being marked SPAM? -

Managing iptables drop lists  
- After blocking large numbers of sites accidentally, cleaning them out is easier with this script -

Samepage - Redefining how people create and share information
My iPad won't charge - what can I do?  
- I forgot to charge my old ipad for a month and now it is completely dead - what can I do? -

How can I monitor bandwidth so we don't accidentally exceed our hotspot data?  
- I'd like to keep an eye on my bandwidth usage while on vacation to avoid overcharges. -

Another 'expanded to zero recipients' problem  
- I was thrown of track momentarily, but eventually there was nothing left that it could possibly be. No matter how silly, that had to be it. -

How can I see what pages are being accessed at my website?  
- I'd like to watch my logs as new visitors come. How can I see what pages are being accessed in real time? -

How do I look up an MX record with nslookup?  
- I'm trying to figure out why this app is sending email to the wrong server. How do I look up MX records with nslookup? -

How do I merge images with Preview on MacOSX?  
- I need to merge two images into one on my Mac. I've read that Preview can do that, but I can't make it work. -

How do I fix iTunes access?  
- I have an account with iTunes on a PC as well as on my iPhone and iPad . iTunes has shut me off on the PC but not the on the Apple products. -

How do I fix popups on Windows 7?  
- Anonymous asks: Right now my most pressing problem is adware. I just got off a site where there were 4 or 5 popups going off constantly. -

How do I (just about anything)?
- Go ahead - ask me anything. I'll answer it as best I can and publish it here. -

Kerio Connect won't start after updating SSL certificate  
- How to quickly fix Kerio Connect if it cannot restart after updating or renewing its SSL certificate -

Missing attachments with Android Active Sync  
- Attachments mysteriously disappeared when he sent email from his Android phone. He blamed the server, but was it that? -

Unable to browse the Internet  
- Suddenly 15 PC's had trouble connecting to the Internet. Nothing had changed except they had been physically moved to another office. -

Debug SMTP Client or SMTP Server?  
- When debugging Kerio Connect email problems, should you turn on SMTP Client or SMTP Server? -

Being confused can sometimes help  
- If my customer's email hadn't been confused, I wouldn't have called him to help and he would have waited for something that was never going to happen. -

Increase IPsec debugging  
- How to increase the Kerio Connect debug log verbosity for IPsec tunnels when you need to debug the connection. -

Kerio Control Speed Issues  
- Test and resolve Kerio Control speed issues - is it the hardware or the scanning functions? -

Kerio Connect Mailbox alias could not be expanded  
- What causes 'Mailbox alias could not be expanded' in the mailserver log files? -

Another SCO 5.0.7 crash  
- Another SCO 5.0.7 crash tests my memory - it was taxing, but we got through it. A decade ago or more that would have been something I could fix while half awake, but now my memory of SCO Unix has truly faded. -

Ubuntu service start bug  
- Ubuntu service start bug prevents restart of squid3 -

Using Antivirus programs with Kerio Connect  
- Using Antivirus programs with Kerio Connect - Protecting Connect files from being corrupted by virus scanning. -

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. -

802.11g/n High Gain USB Wireless G / N Long-Range WiFi Network Adapter  
- Boosting the very weak free wireless signal at our vacation home isn't easy -

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

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   2013/06/28 TonyLawrence
- Should Kerio Connect have a function to automatically whitelist a valid SPF check? I think maybe they should. -

How to trouble-shoot file corruption  
- If you don't have the space, you have to take running snapshots with fuser or lsof- that may not satisfy a very stubborn vendor who is convinced that *their* programs never screw up. -

Mysterious panics and freezes  
- Crashes, panics and freezes: all work halts and you can't help being surprised. What just happened? -

Deleting a lost file name - delete unremoveable files  
- It HAS a file name- it probably has control characters in it that are confusing the display. Try ls -b. If that doesn't work, do "ls -l > /tmp/t" and the "vi /tmp/t" -

View large files without more or less  
- I have a rescue disk that doesn't include "more" or "less" - how can I examine large files? -

All about Telnet  
- A collection of telnet related information and links. Telnet is seldom used today except for network troubleshooting. -

Kerio Connect Mailserver
Pass-Through Printing  
- The idea is that if the terminal sees a special key sequence, it will start sending the data out some other port (parallel or serial) until it sees some sequence that tells it to stop. -

Fixing an old SCO Unix 5.0.4 machine  
- I found myself staring at an ancient Gateway and a screen hung at Enter run level (0-6, s or S) -

Wireshark 101   2013/05/26 TonyLawrence
- Silly me. I really should have started using Wireshark long before this! -

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

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

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

Filtering and separating Kerio Control Debug logs  
- Kerio debug logs can contain a lot of extraneous noise. Use a script like this to separate the wheat from the chaff -

Troubleshooting anti-spoofing messages   2012/11/18 TonyLawrence
- Is this network congestion or some other problem? Can you see what is confusing me? Join me in a network troubleshooting problem. -

Troubleshooting Kerio Control installation  
- Setting up Kerio control is usually very easy. If you do experience problems, this guide can help. -

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