Checking a *.CRT, *.CSR and *.KEY are correct.

Two commands which you need to run. #openssl rsa -noout -text -in www.domainname.com.key #openssl req -noout -text -in www.domainname.com.csr #openssl x509 -noout -text -in www.domainname.com.crt Check for modulus part in the output of both commands If the modulus output match, then your .crt and .key files are matching.

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What to do if windows updates stop working after installing XP SP3

Register the Wups2.dll file in Windows loadTOCNode(2, ‘resolution’); To register the Wups2.dll file in Windows, follow these steps: net stop wuauserv regsvr32 %windir%system32wups2.dll Note For a computer that is running Windows XP Professional x64 Edition, type the following command, and then press ENTER: regsvr32 %windir%syswow64wups2.dll net start wuauserv

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Seeing emails with the following subject in adm or roots mail file ***UPDATE /etc/acct/holidays WITH NEW HOLIDAYS***

To get rid of these edit the following file and change the year to the current year File: /etc/acct/holidays Example Output below with section marked as bold what you need to alter * @(#)holidays January 1, 2006 * * Prime/Nonprime Table for UNIX Accounting System * * Curr Prime Non-Prime * Year Start Start * * * * only the first column (month/day) is significiant. * * month/day Company * Holiday *

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Mounting ISO images in Solaris

mounting ISO lofiadm -a /usr/local/jumpstart_files/ISO/sol-10-GA-sp-dvd.iso /dev/lofi/1 mkdir /mnt/iso mount -F hsfs -o ro /dev/lofi/1 /mnt/iso unmounting ISO umount /mnt/iso lofiadm -d /dev/lofi/1

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OK prompt on a SunBlade 100

If you need to get into the OK prompt and you are physically at the machine do the following. Power off machine Power machine on When you hear the initial beep from the system highlighting it is starting up press the power supply button twice.

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Solaris 10 Services

Solaris 10 uses the svcadm application for starting and stopping services and class’s any scripts in /etc/init.d as a legacy way of doing this. Display services svcs Turning on svcadm start sendmail Turning off svcadm stop sendmail Disabling svcadm disable sendmail Note: Here is a good blog which has information on how to convert your rc scripts into SMF format. http://prefetch.net/blog/index.php/2005/11/12/converting-an-rc-script-to-an-smf-manifest/

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Disabling IP6 within CentOS

Edit /etc/sysconfig/network and set “NETWORKING_IPV6” to “no” Add the following to /etc/modprobe.conf : alias ipv6 off alias net-pf-10 off Reboot the system

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If you use BT Broadband and have DNS issues

I have noticed that sometimes the BT’s DNS servers go down due to this i have done some hunting around and found some backup servers which you can use. nameserver 194.72.9.38 # ns8.bt.net nameserver 194.74.65.69 # ns7.bt.net nameserver 194.72.9.34 # ns5.bt.net nameserver 194.74.65.68 # ns6.bt.net nameserver 194.72.0.98 # indnsc60.ukcore.bt.net nameserver 194.72.0.114 # indnsc61.ukcore.bt.net nameserver 62.6.40.162 # indnsc70.ukcore.bt.net nameserver 62.6.40.178 # indnsc71.ukcore.bt.net

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Speeding up the firefox loading process

I cant find the URL where I found this tweak but it is a very useful one to do. There is a config setting called **browser.cache.disk.capacity **within firefox if you drop the value down from 50000 to 15000 this speeds up the load time and you should also find that firefox should be a little more friendly on the system memory. FYI, if your not sure how to find the config settings open up firefox and then browse to the following ‘about:config’ minus the quotes.

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Orca - Trending, reporting, and Capacity Planning

This is a great application for trending your servers (Solaris, Linux and also windows machines with some tweaking) Trends all the usual things cpu, memory, http requests, uptime etc. http://www.orcaware.com/orca/ Worth taking a look at it if you need some sort of data to prove you need to either purchase additional equipment or just need to move certain services off machines due to CPU being maxed. You can also create your own monitoring plugins as well you can set the system up to monitor garbage collection states for any java process’s you have running.

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