Zero Filling a Disk in Linux

Zero Filling a Disk in Linux

The simple way to wipe or zerofill a disk is: dd if=/dev/zero of=/dev/sd? bs=1M However I found an article describing how to zero-fill with a progress indicator using pipebench, installed on Debian/Ubuntu ...

Increasing CentOS LVM under VMWare

Increasing CentOS LVM under VMWare

Background: I had an existing CentOS machine as a virtual machine running on VMWare ESX Server and it was running out of space so for future reference I did the ...

SquidGuard LDAP User Search and Special Characters

SquidGuard LDAP User Search and Special Characters

So I had a problem with the ldapusersearch string as some eejit has created an OU with spaces and an apostrophe in the name. So the characters are represented as: comma ...

Flushing local client DNS cache

Flushing local client DNS cache

From info I found here. This is how to flush the local client DNS cache. Windows: ipconfig /flushdns Linux: sudo /etc/init.d/networking restart Mac: lookupd -flushcache

Prev Next
Browsing all articles from February, 2011
Written by jonny in linux
24
Jun
2011

Get Image Dimensions on the COmmand Line

Occasionally useful to find out the dimensions of an image without having to load an image editor or file manager. From the ImageMagick toolkit: identify myimage.jpg tiffinfo myimage.tif pnginfo myimage.png

Written by jonny in featured, squid
10
Jun
2011

SquidGuard LDAP User Search and Special Characters

So I had a problem with the ldapusersearch string as some eejit has created an OU with spaces and an apostrophe in the name. So the characters are represented as: [...]

Written by jonny in squid
10
Jun
2011

Squid 3 Warning

WARNING: (B) ‘::/0′ is a subnetwork of (A) ‘::/0′ I had this warning when restarting squid 3. I had a line left over from squid 2: acl all src 0.0.0.0/0.0.0.0 [...]

Written by jonny in squid, Uncategorized
9
Jun
2011

Building RPMs for Squid, SquidGuard

Squid Get a few dependencies to get the ball rolling: yum -y groupinstall “Development Tools” yum -y install rpm-build openjade linuxdoc-tools openldap-devel pam-devel openssl-devel httpd rpm-devel expat-devel db4-devel libpcap-devel Browse [...]