Unable To View PDF Preview In Windows 7 Explorer

If you don’t get a preview of your PDF in Windows 7 Explorer, it may be using the wrong PDF document handler.

In Adobe Reader, under Edit > Preferences > General:

At the bottom of page Select Default PDF Handler.

More steps and info here:

http://www.sevenforums.com/general-discussion/35751-cant-preview-pdf-docs-windows-explorer.html

Top 10 Incredibly Useful Windows Programs

I tend to agree. I’m using half of the programs on this list. The other half are now on my to-check-it-out list.

10. Speccy
9. Ultimate Windows Tweaker
8. Stress Testing Utilities
7. MalwareBytes, VirusTotal, and AdwCleaner
6. Magical Jelly Bean KeyFinder
5. Process Explorer
4. UNetbootin and YUMI
3. Wireless Network Watcher (and Other Network Tools)
2. WinDirStat
1. Sandboxie

http://lifehacker.com/top-10-incredibly-useful-windows-programs-to-have-on-ha-1584009886

Useful exim_mainlog Spam Analysis

A great list of useful utilities to analyze your exim_mainlog file for spammers.

Locating multiple IP address logins for mail accounts

grep “A=courier_login” /var/log/exim_mainlog | sed -e ‘s#H=.* \[##’ -e ‘s#\]:[0-9]*##’ | awk ‘{print $5,$6}’ | sort | uniq | awk ‘{print $1}’ | uniq -c | awk ‘{ if ($1 > 1) print $0}’

If you see that you have a lot of users that have mail logins from multiple unique IP addresses you can run the following command to get a look at exactly what IPs they’re connecting from:

grep “A=courier_login” /var/log/exim_mainlog | sed -e ‘s#H=.* \[##’ -e ‘s#\]:[0-9]*##’ | awk ‘{print $5,$6}’ | sort | uniq -c

http://www.inmotionhosting.com/support/email/email-troubleshooting/locate-email-accounts-being-used-to-spam
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Locate 535 incorrect authentication errors

grep “535 Incorrect” /var/log/exim_mainlog | awk -F”set_id=” ‘{print $2}’ | sort | uniq -c | sort -n

Find IP address causing incorrect logins

grep “535 Incorrect” /var/log/exim_mainlog | grep user@example.com | awk ‘{print $1,substr($9,2)}’ | cut -d] -f1 | uniq -c

Block IP address at server’s firewall

apf -d 123.123.123.123 “Failed mail logins to user@example.com”

http://www.inmotionhosting.com/support/email/bounceback-errors/535-incorrect-authentication
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Locate duplicate subjects in Exim mail log

awk -F”T=\”” ‘/<=/ {print $2}' /var/log/exim_mainlog | cut -d\" -f1 | sort | uniq -c | sort -n If you see that you have a lot of users that have mail logins from multiple unique IP addresses you can run the following command to get a look at exactly what IPs they're connecting from: grep "A=courier_login" /var/log/exim_mainlog | sed -e 's#H=.* \[##' -e 's#\]:[0-9]*##' | awk '{print $5,$6}' | sort | uniq -c You can now locate all of the IP addresses the user01@example.com account has been sending mail from, and possibly block them at your server's firewall if the activity looks malicious to you. Use the following command to find all the IP addresses the account has been relaying mail with: grep "<= user01@example.com" /var/log/exim_mainlog | grep "Melt Fat Naturally" | grep -o "\[[0-9.]*\]" | sort -n | uniq -c | sort -n http://www.inmotionhosting.com/support/email/exim/locate-spam-activity-by-subject-with-exim

Reset SC543 Error on Ricoh Aficio SP C320DN Printer

This SC543 error is typically related to the fuser. To reset the error you need to follow these steps:

Fix: Hold UP and Down arrow key for 7 seconds then press OK
Scroll down to Engine –> OK
Right arrow to 5
Left arrow to 810 (SC Reset)
OK –> OK –> Execute –> Execute –> Exit
Turn printer off and back on

For more information see:

http://www.helpowl.com/q/Ricoh/AficioSPC320DN/Troubleshooting/service-code-543/379818

If you need to replace the fuser on the Ricoh Aficio SP C320DN, see this link:

http://www.manualslib.com/manual/361308/Ricoh-Aficio-Sp-C320dn.html?page=174