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79%
Creating and evaluating kernel crash dumps
31.10.2025
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© Giuseppe Ramos, 123RF.com
Preparations for the Kernel Dump [root@rhel ~]# grep -i crash /proc/iomem 03000000-0affffff : Crash kernel [root@rhel ~]# grep crash /proc/cmdline ro root=/dev/mapper/VolGroup00-LogVol00 rd
79%
Troubleshooting SELinux
30.11.2025
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Sapsiwai, Fotolia
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
79%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
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© Daniela Mangiuca, 123RF.com
: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
79%
Network backup with Burp, Obnam, and Backshift
30.11.2025
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© Sergey Peterman, 123RF.com
version (1.3.0) dates back to January of this year, whereas the current version (1.3.6) was released at the end of May. The associated Windows client is available in the form of an installer file for 32
79%
Overview of cloud platforms and appliances
30.11.2025
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Athiphan Chunmano, 123RF
, your scaling options are virtually unlimited, and you can add Content Delivery Networks (CDN). As an example, SlideShare [1] integrates document downloads and Flash file hosting with Amazon S3 and Cloud
79%
Creating RAID systems with Raider
31.10.2025
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©Slawomir Kruz, 123RF.com
Partitions # df -h File system Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 50G 1,7G 46G 4% / tmpfs 3,9G 0 3,9G 0
79%
Tracing applications with OProfile and SystemTap
30.11.2025
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© boing, Photocase.com
: all cores 0x40: core: this core 0x30: prefetch: all inclusive 0x10: prefetch: Hardware prefetch only 0x00: prefetch: exclude hardware prefetch 0x08: (M)ESI: Modified 0x04: M
78%
Managing virtual machines
30.11.2025
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© Igor Klimov, 123RF.com
/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%
Julia: A new language for technical computing
30.11.2025
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.33 164.69 0.75 rand_mat_stat 3.37 39.34 11.64 54.54 22.07 8.12 rand_mat_mul 1.00 1.18 0.70 1.65 8
77%
Monitoring virtualization environments with Nagios and Icinga
30.11.2025
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Sergej Khackimullin, 123RF
CPU PROCESS/NLWP # 173 daemon 17M 11M sleep 59 0 3:18:42 0.2% rcapd/1 # 17676 apl 6916K 3468K cpu4 59 0 0:00:00 0.1% prstat/1 # ... # ZONEID NPROC SWAP RSS MEMORY TIME

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