asterisk 1.4 on centos 5 "inode diet"

/*
* As part of the "inode diet" the private data member of struct inode
* has changed in 2.6.19. However, Fedore Core 6 adopted this change
* a bit earlier (2.6.18). If you use such a kernel, Change the
* following test from 2,6,19 to 2,6,18.
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
#define I_PRIVATE(inode) ((inode)->u.generic_ip)
#else
#define I_PRIVATE(inode) ((inode)->i_private)
#endif

Remote UNIX connection(disconnected) and asterisk

On CLI which is under verbose output, following message will be generated every 5 seconds.

It is due to safe_asterisk process, which itself is invoked by asterisk service, that kept connecting!

> > -- Remote UNIX connection
> > -- Remote UNIX connection disconnected
> > -- Remote UNIX connection
> > -- Remote UNIX connection disconnected
> > -- Remote UNIX connection
> > -- Remote UNIX connection disconnected
> > -- Remote UNIX connection
> > -- Remote UNIX connection disconnected

gcc: installation problem, cannot exec `cc1plus': No such file or directory

$yum install gcc-c++

list bios information on linux

$dmidecode

dmidecode is a tool for dumping a computer’s DMI (some say SMBIOS) table contents in a human-readable format

pci device profile

On linux,

$lspci -tv show the tree map of the pci device

Simple Linux network traffic monitor

vnStat is a network traffic monitor for Linux that keeps a log of daily network traffic for the selected interface(s). vnStat isn't a packet sniffer. The traffic information is analyzed from the /proc -filesystem, so vnStat can be used without root permissions.

$vnstat -tr