- Page: 2 » ADMIN Magazine

82%

Get the best out of your bandwidth with tc

30.11.2025

Home » Archive » 2012 » Issue 10: Traff... »

25Mbit allot 1514 cell 8 weight 2500Kbit prio 3 \maxburst 20 avpkt $PKT bounded 16 # Now add filters to your child class 17 tc filter add dev $DEV protocol ip parent 1:0 prio 100 u32 match ip $DIR 12

81%

Beyond monitoring: Mathematical load simulation in Perl

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

Model"; 11 $work = "ebiz-tx"; 12 $node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think = 0.0 * 1e-3; # as per test system 16 $dtime = 2.2 * 1e-3; # dummy service time 17 18

81%

An IT nomad's daily diary

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

\ 02 --hostname=foo.bar.de --mac- address=00:40:26:CA:10:DD \ 03 --kopts="stage=test app=www" --ksmeta="stage=test app=www" 04 # cobbler system edit --name=foo --interface=eth0 --mac=00:40:26:CA

81%

Tracing applications with OProfile and SystemTap

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

686 oprofile-0.9.5-4.fc12.i686 To profile the kernel, you need to tell OProfile where the kernel image is located with the --vmlinux option: opcontrol --setup --vmlinux=/usr/lib/debug/lib/ modules

79%

Touring the top Knoppix debugging and rescue tools

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

: 1487680 0 IO-APIC-fasteoi uhci_hcd:usb3 14 22: 22998855 0 IO-APIC-fasteoi psb@pci:0000:00:02.0 15 23: 3084145 0 IO-APIC-fasteoi hda_intel 16 24: 1 0 ... 0

78%

I/O benchmarks with Fio

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

/0K /s] [4137 /0 iops] [eta 00m:06s] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P

78%

Debugging the Linux kernel with the Qemu emulator

30.11.2025

Home » Archive » 2012 » Issue 07: Xen v... »

:add-symbol-file module.ko text_address -s .data data_address -s .bss bss_address 9. Debug: Set breakpoints and so on. In Toolchain , enable the Build gdb for the Host option; in Kernel | Kernel version , type 3

77%

Troubleshooting SELinux

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

user_u:system_r:httpd_t root 3728 1 2 10:49 ? 00:00:00 /usr/sbin/httpd 07 user_u:system_r:httpd_t apache 3730 3728 0 10:49 ? 00:00:00 /usr/sbin/httpd 08 ... The weird ... 0

77%

Managing virtual machines

30.11.2025

Home » Archive » 2012 » Issue 09: Windo... »

/sysconfig/network-scripts/ifcfg-eth0-e "s///" You need a similar approach with the Udev rules mentioned earlier. In this way, you can also replace the hostname so that it matches the name assigned during

77%

Workshop: Container virtualization with LXC on Ubuntu 10.04

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

.network.type = veth 04 lxc.network.flags = up 05 lxc.network.link = br0 06 lxc.network.hwaddr = 08:00:12:34:56:78 07 #lxc.network.ipv4 = 0.0.0.0 08 lxc.network.ipv4 = 192.168.1.69 09 lxc.network.name = eth0 10 lxc

Search