Forcefully Unmounting: Mount point is busy
Trying to forcefully unmount any device like NFS or CD-ROM and getting an error or 'mount point is busy' ? **Error:** ``` Mount point is busy Text file is busy
Linux
Fix "NFS mount error: Bad superblock (or) Unable to mount I/O error"
The other day while trying to mount one of my NFS server on the client machine I was getting this error. Well it took me time to figure out the
How to fix "unexpected KEYWORD, expecting $end [type]"
This error is very common and simple which you might get when trying to restart ipsec services.[](http://4.bp.blogspot.com/-wWkjTG72GSg/UlfDLmvXdfI/AAAAAAAACfM/-QzGAErj5kQ/s1600/errore1.jpg) Please follow the below solution in case you get this error ## Error:
How to Fix "192-SHA1(2)_160 pfsgroup=no-pfs"
[](http://4.bp.blogspot.com/-wWkjTG72GSg/UlfDLmvXdfI/AAAAAAAACfM/-QzGAErj5kQ/s1600/errore1.jpg)This is a error related to openswan configuration. Once you have up and running ipsec, while trying to connect to sonicwall vpn you might get this error. **Error:** ``` 002
ipsec showhostkey no secrets filename matched "/etc/ipsec.d/*.secrets"
[](http://4.bp.blogspot.com/-wWkjTG72GSg/UlfDLmvXdfI/AAAAAAAACfM/-QzGAErj5kQ/s1600/errore1.jpg)This error you might get while trying to configure openswan and you are unaware of some important steps which you have missed out in the configuration. You are supposed to
How to Fix "Informational Exchange message must be encrypted"
This is the error you might get while configuring Openswan. As I received this error when I was configuring openswan to connect my sonicwall vpn. **Error:** #1: Informational Exchange message
Openswan configuration on Red Hat5 for Sonicwall
I really had to struggle a lot to properly configure Openswan on my Red Hat Linux machine so that I can connect to my Sonicwall firewall. Well for others I
Linux Kernel boot time Optimization
[](http://4.bp.blogspot.com/-Mk6kFaR66_w/UlfJLR1gppI/AAAAAAAACgU/7hMMadZRuF4/s1600/vector_tux.864e6cdcc23e.jpg)Present state of Linux kernel booting process itself is highly optimized. I mean that there is no major deficiency in kernel loading architecture (as it is mostly serialized/linear) and little/no
How to Fix ORA-12899: value too large
The other day I was installing Peopletools on a Linux instance when I came across this error and I am sure some body else also might get stuck at this
View the history of commands along with time
Generally when we try to view the history of the commands in Linux then we only see all the commands which are used but not the time when they were