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Latest Posts
- Enabling locate database in Mac OS X Snow Leopard Posted on April 9, 2012
- Building mysql2 gem in Ubuntu issue Posted on April 7, 2012
- Basic ARP Manipulation Posted on February 24, 2012
- DHCP configurations in Red Hat/CentOS and Debian/Ubuntu Posted on February 19, 2012
- Static IP configurations in Red Hat/CentOS and Debian/Ubuntu Posted on February 1, 2012
April 9, 2012
Enabling locate database in Mac OS X Snow Leopard
by Alpha01
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist
macos April 7, 2012
Building mysql2 gem in Ubuntu issue
by Alpha01
Error
Installing mysql2 (0.3.11) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/home/tony/.rvm/rubies/ruby-1.9.3-p125/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/home/tony/.rvm/rubies/ruby-1.9.3-p125/bin/ruby
--with-mysql-config
--without-mysql-config
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysqlclientlib
--without-mysqlclientlib
--with-mlib
--without-mlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-zlib
--without-zlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-socketlib
--without-socketlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-nsllib
--without-nsllib
--with-mysqlclientlib
--without-mysqlclientlib
--with-mygcclib
--without-mygcclib
--with-mysqlclientlib
--without-mysqlclientlib
Fix
sudo apt-get install libmysqld-pic
ruby mysql ubuntu February 24, 2012
Basic ARP Manipulation
by Alpha01
Add a temporary ARP entry to a hosts ARP cace
arp -s 192.168.1.145 00:02:03:F6:7C:4B temp
Permanent static entry (not temporary: NO “temp”)
arp -s 192.168.1.145 00:02:03:F6:7C:4B
networking security February 19, 2012
DHCP configurations in Red Hat/CentOS and Debian/Ubuntu
by Alpha01
Example for eth0
Red Hat/CentOS: /etc/sysconfig/network-scripts/ifcfg-eth0
BOOTPROTO=dchp
Ubuntu/Debian: /etc/networks/interfaces
iface eth0 inet dhcp
centos ubuntu networking February 1, 2012
Static IP configurations in Red Hat/CentOS and Debian/Ubuntu
by Alpha01
Static IP configurations
Ubuntu/Debian: /etc/networks/interfaces
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.254
RedHat/Centos: /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.1.140
BROADCAST=192.168.1.255
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
ubuntu centos