This is how it’s done. In the following example, I will be finding X and replacing it with Y

The string will find X in every single post and replace it with Y. This also works with phrases, URLs etc..

update wp_posts set post_content = replace(post_content, 'X', 'Y')

First of all, make sure you have IP reachablity to the TFTP Server. You can do that via Ping…

Then check whether TCP port 69 is open. Usually it is not the case, but when it comes to troubleshooting, it is the first thing to check after a succesful Ping test.

Jump onto the router you are going to do the IOS upgrade.

Make sure the IOS you are going to replace it with is compatible with your router & also you have the necessary Flash / RAM.

If your Flash is big enough to have more than two IOS images, then you can straight away go and download it from the TFTP Server.

If you are going to have two IOS images in flash, you need to specify the router which image to load on boot. It can be done via the following command…

boot system flash IMAGE_NAME_HERE

Example:
Router(config)#boot system flash c2691-adventerprisek9_ivs-mz.124-15.T9.bin
If the flash is not big enough to have both images, you need to delete the old image.

I usually use the command show flash: then delete the content via the command delete flash:

You can see an example here…

Router#show flash: all
-#- --length-- -----date/time------ path
1 32293924 Mar 1 1993 00:23:52 +00:00 c2691-adventerprisek9-mz.124-5a.bin
31739904 bytes available (32296960 bytes used)
Router#delete flash:
Delete filename []? c2691-adventerprisek9-mz.124-5a.bin
Delete flash:c2691-adventerprisek9-mz.124-5a.bin? [confirm]
Router#
Router#
Router#
Router#show flash:
No files on device
64036864 bytes available (0 bytes used)

Now copy the IOS image from the TFTP Server

Copy tftp: flash:

Example here…

Router#copy tftp: flash:
Address or name of remote host []? 192.168.1.100
Source filename []? c2691-adventerprisek9_ivs-mz.124-15.T9.bin
Destination filename [c2691-adventerprisek9_ivs-mz.124-15.T9.bin]?
Accessing tftp://192.168.1.100/c2691-adventerprisek9_ivs-mz.124-15.T9.bin...
Loading c2691-adventerprisek9_ivs-mz.124-15.T9.bin from 192.168.1.100 (via FastEthernet0/1): !!!!!!!!!!

Sometimes the router might ask you to erase Flash: but I usually do that…

Reload the router and it should be able to run the new IOS Image.

If you happen to have more than one IOS on Flash: You can hardcode which version of IOS to load with the global config command.

Router(config)#boot system flash c2691-adventerprisek9_ivs-mz.124-15.T9.bin

Lets talk about the Manufacturer…

People have preference when it comes to HDD Manufacturer. When it comes to the manufacturer, I tend to go for Western Digital (WD) and solely because I had less bad experience with it compared to Maxtor…

I am not saying WD drives never fails, in fact I do have an old WD 80GB IDE drive here which died this morning; but it does have low percentage of failure.

Why does it die?

One person actually asked me this question and the answer is very simple. Any electronic equipment, or any functioning part will die at one point, its the same as human body, it all depends on how its been treated the background of it. When it comes to HDD, its the manufacturer.

How to stop a HDD from dying?

You can’t and you never know when it’s going to die, same as a human being… You never know when you are going to die. It all comes down to to proper care and how its been treated. For example, do not shut your machine down by pulling the plug, it WILL kill the HDD at one point! If you want to shut it down without doing it via the Operating System, press and hold the Power Button for 10 seconds and it should shut the machine down.

Conclusion

Treat a HDD like it is going to die the next minute and back it up on a regular basis. If you don’t have any important information on the disk, then it not a problem. You could either manually back it up on another drive, setup RAID on machine or even back it up to a remote server.

Click here to view the embedded video.

First of all, Open up your favourite text editor and add the name servers into /etc/resolv.conf

nameserver 192.168.1.1

If you need to add more, just add another one in the next line…

Following the instructions below will walk you through the process…

bash-3.00# ping www.google.com
ping: unknown host www.google.com
bash-3.00# cat /etc/resolv.conf
nameserver 192.168.1.1
bash-3.00# cd /etc/
bash-3.00# cp -p nsswitch.conf nsswitch.conf.org
bash-3.00# cp -p nsswitch.dns nsswitch.conf
bash-3.00# /etc/init.d/nscd stop; /etc/init.d/nscd start
bash-3.00# ping www.google.com
www.google.com is alive
bash-3.00#

As you can see, the Name Server is working!

You should see something like the following…


bash-3.00# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
rtls0: flags=1000842<BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 0.0.0.0 netmask 0
ether 0:6:4f:47:76:1e


In this case, we will be adding the IP address and subnet mask to rtls0 along with the default gateway.

IP Address: 192.168.1.60
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.1

Here is how its done…


bash-3.00# ifconfig rtls0 192.168.1.60 netmask 255.255.255.0 up
bash-3.00# route add default 192.168.1.1
add net default: gateway 192.168.1.1
bash-3.00# ping 4.2.2.2
4.2.2.2 is alive


Success! We can now ping a WAN IP! and here is the new output of ifconfig -a


bash-3.00# ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv 4,VIRTUAL> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
rtls0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 192.168.1.60 netmask ffffff00 broadcast 192.168.1.255
ether 0:6:4f:47:76:1e


DNS cache poisoning (also known as DNS cache pollution) is a maliciously created or unintended situation that provides data to a DNS Server that did not originate from authoritative DNS sources.

It happens when an attacker sends malicious data in response to a DNS query. For example, DNS query for www.nishv.com can be redirected to another website.

This method is taking the phishing scam to another level, you might be visiting your bank’s website but without you realising it, you will actually be putting in all the login information into some hackers servers which made it look exactly like the bank’s website. Yes, this is very serious!

How do you patch it?

On the client side (we are talking about Microsoft Windows here), your machines should have been patches automatically if you set the Auto-Update option. If not, I recommend you check the available updates and patch it as soon as possible.

If you use a DNS Server, my recommendation is to use the following command to figure out whether it has been patched or not. If it is not, STOP using it and have a look at this post on OpenDNS for more info.

Use the following DIG command on UNIX


dig +short @{name-server-ip} porttest.dns-oarc.net txt
dig +short @ns1.example.com porttest.dns-oarc.net txt
dig +short @208.67.222.222 porttest.dns-oarc.net txt


and you should get a result similar to this…


nishv@nishv.com [~]# dig +short @208.67.222.222 porttest.dns-oarc.net txt
porttest.y.x.w.v.u.t.s.r.q.p.o.n.m.l.k.j.i.h.g.f.e.d.c.b.a.pt.dns-oarc.net.
"208.67.217.8 is GREAT: 26 queries in 2.1 seconds from 26 ports with std dev 20119"

Or something like this…

nishv@nishv.com [~]# dig +short @4.2.2.2 porttest.dns-oarc.net txt
porttest.y.x.w.v.u.t.s.r.q.p.o.n.m.l.k.j.i.h.g.f.e.d.c.b.a.pt.dns-oarc.net.
"209.244.4.25 is GOOD: 26 queries in 1.9 seconds from 26 ports with std dev 3880"


If you don’t get GREAT or GOOD and gets something like POOR, you should immediately stop using it.

If you manage that DNS server, patch it or decommission it!

This is how to check on Windows

Open up command prompt by going Start –> Run –> CMD or on Vista typing CMD on the Start Search box


nslookup -type=txt -timeout=30 porttest.dns-oarc.net
nslookup -type=txt -timeout=30 porttest.dns-oarc.net ns1.your-isp.com
nslookup -type=txt -timeout=30 porttest.dns-oarc.net NS-SERVER-IP


You must see the GREAT or GOOD, if not your DNS Server is compromised.

You can see Dan Kaminsky’s presentation below…

Logitech took a whole new approach when it comes to the design of this piece of gadget. First of all, the MX Air does not look like a typical computer mouse but it looks very much like a remote control. Since this mouse can be used as a 3D mouse, the design of such traditional mouse wouldn’t be suitable to be held on one’s hand.

I have tested this on Windows Vista Ultimate and when it comes to installations, there wasn’t any need for driver install. I had to just plug in the USB stick in and the mouse started to work without any prior configuration. Having said that, I did later install the Logitech Software and fully configured it to utilize its full functionality.

The gadget itself does look a bit weird compared to other mice. It fits very well in the hand and that includes using it as a 3D mouse.  Also there is no scroll wheel but it is equipped with a vertical trackpad which does the function of a scroll wheel and it is extremely accurate in the air. While on the air, it can be used for controlling music or video, holding down the Volume button and swinging the mouse to one side or going up/down (depends on the custom setting) will change the volume.

I have been using this mouse for about a day now and I have yet to find out any fawns in it. Based on that I would definitely give it 5 stars.

Click here to view the embedded video.

The root cause of the problem is the wiring of the mini-usb port on the Kaiser itself and HTC decided to swap it around; thus it shows the device being charged but it fails to give the power needed for the battery to charge.

As far as I can see, there is neither a software issue nor a hardware issue with the device itself.
Most of the in-car chargers are equipped with the standard wiring and HTC has decided to swap them around.

There are two possible solutions to this problem. I am going to emphasise on the straight forward solution than the long winded one because the second solution involves a technical approach.

Symptoms:

Device charges fine using AC charger.
Device charges fine when connected to a PC using the USB connector provided with the device.
Device charges fine using the in-car charged when its Turned OFF. (To turn the Device OFF, press and hold the ON/OFF button for 10 Seconds)

Device does NOT charge when it is ON using in-car charger, but it displays the device being charged.

Solution:

Buy an HTC branded in-car charger.
Swap the wire around on your current in-car charger. I am not going to go into details here but I will post a guide shortly.

Conclusion:

I am 99% sure using an HTC Branded in-car charger from Expansys will solve the problem. If that doesn’t solve it, contact HTC support.

Go to Start -> Run Type in services.msc

Make sure Windows Defender Services is running, if it is not, manually start it.

If that doesn’t fix the problem, download and install Windows Defender from Microsoft.

If you are trying to Disable Windows Defender, follow this URL below…