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My Tech Notes and Stuff: April 2009

http://pvalentino.blogspot.com/2009_04_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. VMWare Clariion Disk IO Tests Ubuntu. VMWare Clariion Disk IO Tests Ubuntu/Redhat. ESX version 3.5 Update 3. Clariion CX4-480 RAID 5 of 300G 15K spindles (5 spindles per RAID Group). 4GB backplane and Fibre Channel throughout. Copied the 618MB iso image to /dev/shm (RAMdisk). Dd if=iso1 of=/dev/shm/iso1 bs=65536 oflag=sync. Dd if=iso1 of=/u01/iso1 bs=8388608 oflag=sync. Physical x...

pvalentino.blogspot.com

My Tech Notes and Stuff: June 2009

http://pvalentino.blogspot.com/2009_06_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. Apache self-signed certificates Generate the keys for the Certificate Authority (the key that will do the signing). Openssl genrsa -des3 -out ca.key 4096 openssl req -new -x509 -days 3650 -key ca.key -out ca.crt. Generate the private key for your server. Openssl genrsa -des3 -out server.key 1024. Create a CSR (certificate signing request) to get signed by the CA. Links to this post.

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My Tech Notes and Stuff: May 2010

http://pvalentino.blogspot.com/2010_05_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. Generate Wildcard SSL for Apache 2.x using OpenSSL. Openssl req -new -newkey rsa:2048 -nodes -keyout star.domain.key -out star.domain.csr. Convert an Apache Cert and Key to IIS format. Openssl pkcs12 -export -out star.domain.pfx -inkey star.domain.key. In star.domain.crt. Import Key into IIS from pfx format:. Type in MMC and click GO. Right click on the Personal Certificates Store.

pvalentino.blogspot.com

My Tech Notes and Stuff: July 2009

http://pvalentino.blogspot.com/2009_07_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. Centralized YUM Repository Unix Patch. Centralized YUM Repository Unix Patch Management. The PVALENTINO YUM repositories live on PATCH.PVALENTINO.ORG. All repositories live under /data01/repository/. The only sub-directory currently present is patch/, which is where all normal package updates go. The patch directory structure is demonstrated by this example:. Solaris patch cluster...

pvalentino.blogspot.com

My Tech Notes and Stuff: June 2010

http://pvalentino.blogspot.com/2010_06_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. Posted by Paul Valentino. Links to this post. Subscribe to: Posts (Atom). Vcp VCommunity Trust Fund. Please donate to vCommunity Trust Inc. Today. Subscribe To My Tech Notes. Paul and Amy Valentino. Great Strides for Cystic Fibrosis. Master Apache 2 Certification. Master 2003 Server Admin. View my complete profile. Paul Valentino's Brainbench Transcript.

pvalentino.blogspot.com

My Tech Notes and Stuff: April 2010

http://pvalentino.blogspot.com/2010_04_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. NTP Update PoSH for ESX. NTP Update PoSH for ESX. Cluster = cluster name. Hosts = Get-Cluster $Cluster Get-VMHost. ForEach ($Host in $Hosts). Remove-VmHostNtpServer -NtpServer x.x.x.x -VMHost $Host Out-Null. Remove-VmHostNtpServer -NtpServer x.x.x.x -VMHost $Host Out-Null. Add-VmHostNtpServer -NtpServer ntp0.sysxperts.com -VMHost $Host Out-Null. Posted by Paul Valentino. Settings ...

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My Tech Notes and Stuff: November 2008

http://pvalentino.blogspot.com/2008_11_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. Getting ulimit to work with SSH and s. Getting ulimit to work with SSH and stick across reboots. Add the following to /etc/sysctl.conf. Fsfile-max = 104032 (substitute 104032 for whatever is appropriate to your environment). Add the following to /etc/pam.d/login:. Session required pam limits.so. Add the following to /etc/pam.d/sshd:. Session required pam limits.so. You must know i...

pvalentino.blogspot.com

My Tech Notes and Stuff: September 2009

http://pvalentino.blogspot.com/2009_09_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. I can make you faster, I can be your big brother, or I can be your TSA agent. Yum -y install squid. DONE, well not really :) but you do have a very basic default config with lots of uncommenting and playing with to do now so let's start by configuring the browser to connect to the proxy on port 3128 for testing, in my case:. Http:/ squid.sysxperts.com on port 3128. Http access den...

pvalentino.blogspot.com

My Tech Notes and Stuff: July 2010

http://pvalentino.blogspot.com/2010_07_01_archive.html

My Tech Notes and Stuff. Various and sundry technical notes and instructions for myself or anyone who cares to decipher them. Finding potentially unused IP addresses or invalid DNS. Posted by Paul Valentino. Links to this post. Disco Dancing with iTach. Posted by Paul Valentino. Links to this post. Posted by Paul Valentino. Links to this post. Finding unused IP addresses and invalid DNS entries. From the prompt of your linux host with nmap installed run:. One could easily substitute host with nslookup or...