retrieve Yesterday date (or before) on Solaris
As we know Solaris date is not GNU date. To get yesterday date in solaris you have to do it manually instead of simply using option -d.
#!/usr/bin/sh
TZ="WIB+17"
export TZ
yestd=`date +%Y-%m-%d`
echo $yestd
unset TZ
TZ="WIB+41"
export TZ
yestd1=`date +%Y-%m-%d`
echo $yestd1
unset TZ
today=`date +%Y-%m-%d`
echo $today
Above script is on Bourne Shell (sh), please adjust accordingly if you are on other shell (csh or bash).
in csh or bash AFAIK, use setenv instead of export.
12:05 am • 1 January 2012 • 58 notes • View comments
resize guest OS partition VMware Player
Often we do not think forward in planning our guest OS partition size and when the time comes we are cursed with insufficient disk problem.
That would not be a problem if we are using VirtualBox or VMware Workstation since there are tools available. But, if we are using VMware Player, there are limited tools available to be used.
If we there is VMware Player limitation, based on my experience, there are 2 way that we can use:
1. Create additional disk and mount to the guest OS (easy)
- Expand VM disk allocation
- Create new partition and filesystem
- Mount device filesystem
2. Expand VM disk allocation and then depends on guest OS available disk utilities to resize the partition (depends on the guest OS).
- Expand VM disk allocation
- Unmount and resize
10:08 pm • 21 December 2011 • 14 notes • View comments
red hat slow authentication
Recently I have been playing with RHEL based Linux again. I found that in my box, the authentication is quite slow (especially remote auth.).
After doing some digging, i found that in my box, NIS and domain name cache are enabled (i’m using install script template provided by my company IT dept.). After disabling those service and editing /etc/nsswitch.conf the authentication process is improved but still lagging.
I found that I have to add my remote-access IP address in /etc/hosts to achieve fast remote (ssh) authentication process.
9:57 pm • 21 December 2011 • 38 notes • View comments
