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Understanding Layer 2 switch port security

22.12.2017

Home » Archive » 2017 » Issue 42: Secur... »

) win 512 a:60:b2:3d:fc:af d3:7c:5b:36:4a:61 0.0.0.0.17578 > 0.0.0.0.4432: S 727135709:727135709(0) win 512 18:75:26:4c:a8:23 10:81:2a:12:e1:be 0.0.0.0.42271 > 0.0.0.0.61161: S 1071867223:1071867223(0

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Prepare, analyze, and visualize data with R

07.06.2019

Home » Archive » 2019 » Issue 51: Self-... »

Lead Image © Buchachon Petthanya, 123RF.com

(dayOfYear):as.factor(wday)Monday 16.64 18 8.382 < 2e-16 *** s(dayOfYear):as.factor(wday)Saturday 11.29 18 3.307 3.00e-09 *** s(dayOfYear):as.factor(wday)Sunday 12.92 18 4.843 1.02e-13 *** --- Signif. codes: 0

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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

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Segmenting networks with VLANs

13.02.2017

Home » Archive » 2017 » Issue 37: Distr... »

or check encrypted connections. After the check, the data is encrypted again and redirected to the recipient. Additionally, an E-SBC can prevent denial-of-service (DoS) attacks on the telephone system

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Ansible collections simplify AIX automation

05.08.2024

Home » Archive » 2024 » Issue 82: Sover... »

quark | CHANGED | rc=0 >> /dev/testlv 64.00 62.67 3% 4 1% /testfs Now, to create a playbook to remove the filesystem you just created, go to the /etc

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Building Virtual Images with BoxGrinder and VMBuilder

07.01.2013

Home » Articles »

work is required: You need to modify the virtual machine’s network configuration and change the hostname. If the original virtual machine ran an SSH server, you also need to create a new SSH key

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Build a honeypot with real-world alerts

01.08.2019

Home » Archive » 2019 » Issue 52: Stop... »

. 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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Cross-Vendor IPsec

25.10.2011

Home » Articles »

authentication_algorithm pre_shared_key; 08 dh_group modp1024; 09 } 10 generate_policy off; 11 } 12 13 sainfo address 192.168.2.0/24 any address 172.16.0.0/16 any { 14 pfs_group modp1024; 15

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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

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Operating systems for the cloud and containers

14.08.2017

Home » Archive » 2017 » Issue 40: Lean... »

than five years old. The first public version 0.3.0 was released in October 2011; version 0.3.5 is the most recent. The source code is released under the GNU General Public License version 2 (GPLv2

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