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13%
Advanced monitoring techniques for Azure VMs on Linux
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Photo by Paul Morley on Unsplash
verify these checksums: import hashlib def calculate_checksum(log_entry): return hashlib.sha256(log_entry.encode('utf-8')).hexdigest() # Example log entry log_entry = "2024-06-15 12:00:00 Failed login
13%
Intruder detection with tcpdump
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Monika Wisniewska, 123RF.com
uses the syntax tcpdump -n -I -s where -n means tcpdump should not resolve IP addresses to domain names or port numbers to service names, -I is the interface to use
13%
Investigating container security with auditd
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image, Frank Mckenna, @unsplash.com
.conf audit.rules rules.d chrisbinnie audit # ls -al total 20 drwxr-x--- 3 root root 4096 Dec 16 12:34 . drwxr-xr-x 95 root root 4096 Dec 16 12:34 .. -rw-r----- 1 root root 701 Dec 9 2014 auditd.conf -rw
13%
Keep an eye on your network
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © damedeeso, 123RF.com
://pkg.osquery.io/rpm/GPG | sudo tee /etc/pki/rpm-gpg/RPM-GPG-KEY-osquery Now add and enable the repository with: $ sudo yum-config-manager --add-repo https://pkg.osquery.io/rpm/osquery-s3-rpm.repo $ sudo yum
13%
Flexible software routing with open source FRR
27.09.2021
Home »  Archive  »  2021  »  Issue 65: 7 Em...  » 
Photo by Sahand Babali on Unsplash
as their IPv6 derivatives RIPng and OSPFv3. Additionally, Intermediate System-to-Intermediate System (IS-IS) and OpenFabric – which was inspired by IS-IS but optimized for spine-leaf architectures in data
13%
Server update with Azure Update Management
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Photo by Pablo Heimplatz on Unsplash
it with the command: wget https://raw.githubusercontent. com/Microsoft/OMS-Agent-for-Linux/master/installer/scripts/onboard_agent.sh && sh onboard_agent.sh -w 3a25ad6b-cf60-47a9-a61c-6ba32aa70779 -s WF8SXVgDaDQXmF8NZb
13%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
. Tokens and Certificates Of course, the VPN dial-up no longer uses a simple pre-shared key (PSK) but, instead, uses secure, centrally manageable X.509 certificates [3] that automatically expire. You can
13%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
for all existing users without a certificate (Listing 2). send_certs_and_config.py (Listing 3) signs them with S/MIME and mails to the VPN users. revoke_remove_cert_without_user (Listing 4) is applied
13%
Desktop Blades (of Glory)
06.05.2024
Home »  HPC  »  Articles  » 
 is a larger ITX-size board that has two 2.5GbE, two HDMI 2.0, a USB-C, four USB 3.0, and two USB 2.0 ports; a SIM card and standard PCIe 3.0 x1 and PCIe 3.0 x4 slots; and M.2 key E and M.2 B-key slots (Figure 6
13%
An IP-based load balancing solution
30.11.2025
Home »  CloudAge  »  Articles  » 
arsgera, 123RF
backup_active = 1 05 backup = 192.168.1.232 06 heartbeat = 1 07 heartbeat_port = 539 08 keepalive = 6 09 deadtime = 18 10 network = direct 11 debug_level = NONE 12 monitor_links = 1 13 syncdaemon = 1 14 ... 3

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