Not a Fan of Windows 10

There are a lot of upgrade issues with Window 10. Just Google it!

One of the most frustrating is when the upgrade seems fine and then the internet connectivity fails. In many cases the issue is with the Ethernet drivers not being compatible with Windows 10.

If you’re lucky, your manufacturer will have updated drivers for you on their site. If not, then you may have to either go back to Windows 7 (not too hard if you do it within 30 days of your upgrade) or you may need to buy and install a new Ethernet card that has Windows 10 drivers.

Overall, not a very impressive upgrade path to Windows 10. For me, I’ll stick with Windows 7 until the last fumes. By then hopefully Microsoft will have a more stable OS.

Where To Find Adobe Reader XI Download

Adobe is now promoting their Adobe Acrobat Reader DC. If you still want to download the pre-DC Reader, you can find it here, at least until Adobe removes it.

http://www.adobe.com/support/downloads/product.jsp?product=10&platform=Windows

Restrict Users From Deleting Cookies and History in Internet Explorer

In case you ever want to prevent employees, kids, spouses or others from hiding their tracks in Internet Explorer.

http://www.askvg.com/how-to-restrict-users-from-deleting-cookies-temporary-files-and-other-browsing-history-data-in-internet-explorer/

Unable To Connect To Internet When Connecting To LAN Is OK

Sometimes you may find that you can connect to your local network yet not have access to the internet.

Beyond the normal firewall and anti-virus tests, here are two other slightly more obscure items to check:

1) DNS – go to the CMD line and type in ipconfig/displaydns. This will show your local DNS cache. In some cases the DNS values are either corrupted or incorrect.

To clear the local DNS, type in ipconfig/flushdns

If flushing the DNS doesn’t solve the problem, you can disable and / or restart the DNS caching with these commands:

net stop dnscache
net start dnscache

2) ARP – This is the Address Resolution Protocol and it binds the IP with a physical MAC. You can see the values by typing in at the cmd line, arp -a

If you see any odd machine addresses, like 000-000-000, then you may have to patch the ARP table by using the arp -d and arp -s commands.

Unable To Get Consistent Internet Connection On Cox Cable With Motorola SB6141

I started to get intermittent internet using Cox Cable, a Motorola SB6121, and an ASUS RT-N66U router. After buying a new router and swapping the SB6121 for an SB6141 I still had the problem. The internet would work OK for a while — sometimes 10 minutes, sometimes for a few hours — before giving up completely. The only way to revive the connection was to reboot the modem and the router.

I finally give in and called Cox who sent a technician and found the power levels to be out of range. He replaced a small attenuator that is connected between the modem and the Cox coax and everything worked fine.

He told me the Power TX levels for my area should be from 35-52 and RX level should be between -10 and 10.

Looking at the SB6141 I can now see what the levels should be under the Signal tab. That info can be accessed on the SB6141 by going to 192.168.100.1.

Click on the image below to see a larger version.

IE Stuck On Login Input Form

When using Internet Explorer, you may sometimes get stuck on an input form that is prompting you for a username and password.

The first thing to do is try another browser such as Firefox or Chrome. If you are able to access the site, then the problem is often due to an IE Add-on.

One add-on that I’ve found to cause this kind of problem is Adobe’s Shockwave. Once I disable that add-on the browser often continues without problems.

Configure TP Link N750 As An Access Point

This set up is a little trickier than most routers.

The two main things you need to do:

1) Under Network>LAN change the IP address of the router to a range on your network. For example, say your network is on 10.10.10.xxx. You need to change the router’s IP to something like 10.10.10.250. That way you’ll be able to access the router’s menu. If not, your router will be on 192.168.0.1 (default) and you won’t be able to get into the router’s menu from your 10.10.10.xxx network.

2) Disable DHCP. Since the main router is typically serving up the IP addresses, you don’t want the TP Link router to issue IPs.

More info here: http://www.tp-link.us/article/?faqid=417

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

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