System information

System Monitoring Utilities 35
Mon Mar 23 10:08:02 2010; UDP; eth0; 107 bytes; from 192.168.1.192:33157 to
\
239.255.255.253:427
Mon Mar 23 10:08:02 2010; VRRP; eth0; 46 bytes; from 192.168.1.252 to \
224.0.0.18
Mon Mar 23 10:08:03 2010; VRRP; eth0; 46 bytes; from 192.168.1.252 to \
224.0.0.18
Mon Mar 23 10:08:03 2010; VRRP; eth0; 46 bytes; from 192.168.1.252 to \
224.0.0.18
[...]
Mon Mar 23 10:08:06 2010; UDP; eth0; 132 bytes; from 192.168.1.54:54395 to \
10.20.7.255:111
Mon Mar 23 10:08:06 2010; UDP; eth0; 46 bytes; from 192.168.1.92:27258 to \
10.20.7.255:8765
Mon Mar 23 10:08:06 2010; UDP; eth0; 124 bytes; from 192.168.1.139:43464 to
\
10.20.7.255:111
Mon Mar 23 10:08:06 2010; VRRP; eth0; 46 bytes; from 192.168.1.252 to \
224.0.0.18
--More--(7%)
2.6 The /proc File System
The /proc file system is a pseudo file system in which the kernel reserves important
information in the form of virtual files. For example, display the CPU type with this
command:
tux@mercury:~> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 3.40GHz
stepping : 3
cpu MHz : 2800.000
cache size : 2048 KB
physical id : 0
[...]
Query the allocation and use of interrupts with the following command:
tux@mercury:~> cat /proc/interrupts
CPU0
0: 3577519 XT-PIC timer
1: 130 XT-PIC i8042
2: 0 XT-PIC cascade
5: 564535 XT-PIC Intel 82801DB-ICH4
7: 1 XT-PIC parport0
8: 2 XT-PIC rtc
9: 1 XT-PIC acpi, uhci_hcd:usb1, ehci_hcd:usb4