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Detecting malware with Yara
09.10.2017
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Lead Image © Mohamad Razi Bin Husin, 123RF.com
= "A pdf file that contains a bad link" 10 11 strings: 12 $pdf_magic = {68 47 77 22} 13 $s_anchor_tag = "s_uri = /\(http.+\)/ ascii" 15 16 condition: 17 $pdf_magic at 0 and (#s
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Network monitoring with Icinga and Raspberry Pi
17.02.2015
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Lead Image © AndreaDanti, 123RF.com
service_description PING 11 check_command check_ping!100.0,20%!500.0,60% 12 } 13 define service{ 14 use generic-service ; Name of service template to use 15
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Best practices for KVM on NUMA servers
20.05.2014
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Lead Image © Joe Belanger, 123RF.com
Viewing Server Topology 01 # numactl --hardware available: 8 nodes (0-7) node 0 cpus: 0 1 2 3 4 5 6 7 8 9 node 0 size: 16373 MB node 0 free: 15837 MB node 1 cpus: 10 11 12 13 14 15 16 17 18 19 node 1
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Supercharge your software upgrade routine
05.08.2024
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Photo by redcharlie on Unsplash
install topgrade Updating crates.io index Downloaded topgrade v14.0.1 Downloaded 1 crate (4.4 MB) in 1.52s Installing topgrade v14.0.1 Updating crates.io index Downloaded async-io v1.13.0 Downloaded async
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RAM revealed
30.11.2025
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© KrishnaKumar Sivaraman, 123RF.com
GKF8S 16 DDR3, Registered, ECC, 4 rank 8.710 0.54 AL24M72E4BKH9S 8 DDR3, Registered, ECC, 2 rank 6.132 0.77 AL12M72B8BKH9S
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Build a honeypot with real-world alerts
01.08.2019
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Lead Image © Bruce Rolff, 123RF.com
. The takeaway is the -j LOG option (line 12), which logs port scanning behavior to a logfile with the iptables: prefix. Listing 1 iptable Rules 01 *filter 02 *filter 03 :INPUT ACCEPT [0:0] 04
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Building sustainably safe containers
02.02.2021
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Lead Image © it studiom1, 123RF.com
dockerrepo.matrix.dev/gentoo-glibc:latest-amd64 && touch pushtime Sending build context to Docker daemon 21.12MB Step 1/2 : FROM dockerrepo.matrix.dev/gentoo-base:latest ---> 22fe37b24ebe Step 2/2 : ADD
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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
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Touring the top Knoppix debugging and rescue tools
30.11.2025
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Rafal Olechowski, 123RF.com
: 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
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NVDIMM and the Linux kernel
11.10.2016
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Lead Image © Denis Dryashkin, 123RF.com
=/mnt/test.dat oflag=direct bs=4k count=$((1024*1024)) 1048576+0 records in 1048576+0 records out 4294967296 bytes (4.3 GB, 4.0 GiB) copied, 4.55899 s, 942 MB/s Availability NVDIMMs will probably go on sale

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