github

Risk Management Frameworks

Risk Management Frameworks Risk Assessment should be considered separate from Application Threat modeling, although similar but Application Threat Modeling is more of a calculated approach. ISO27001 BSI Grundschutz NIST Cybersecurity…
github

Threat Modeling

Application Threat Modeling Application Threat modeling should be considered separate from Risk Assessment, although similar but Application Threat Modeling is more of a calculated approach. Threat modeling allows you to systematically identify…
CentOS

LINUX – Network Throughput Tuning

General Approach To check what setting your system is using, use 'sysctl name' (e.g.: 'sysctl net.ipv4.tcp_rmem'). To change a setting use 'sysctl -w'. To make the setting permanent add the setting to the file 'sysctl.conf'. [crayon-687ad0266edf2076249635/] More…
CentOS

CentOS – How do I safely delete old kernel versions ?

package-cleanup: Using package-cleanup command which is a part of yum-utils package we can uninstall any number of old kernels automatically. As an example using --oldkernels --count=2 option with package-cleanup command the command…
ZFS ZOL

ZFS – CENTOS Downgrade

ZFS - Downgrade Commands for Centos: To do the downgrade/re-install dance: [crayon-687ad0266fa81490518528/] [crayon-687ad0266fa88336476196/] [crayon-687ad0266fa8b580522537/]
ZFS ZOL

ZFS – Tuning

ZFS tuning for SAS3 Storage Tank [crayon-687ad0266fe5d531954806/] ZFS tuning for SAS3 ALL SSD + nVME Storage Tank [crayon-687ad0266fe64831674830/] Some more good advice: SvennD ZFS-Discuss
ZFS ZOL

ZFS – SNMP

ZFS - SNMP Extend Commands: [crayon-687ad02670258212618298/] LibreNMS: https://community.librenms.org/t/zfs-support/1839 https://docs.librenms.org/#Extensions/Applications/#zfs
github

CentOS – NIC Teaming with LACP

A Comparison of Features in Bonding and Team Feature Bonding Team broadcast Tx policy Yes Yes round-robin Tx policy Yes Yes active-backup Tx policy Yes Yes LACP (802.3ad) support Yes (active only) Yes Hash-based…

Debian – How do you select the fastest mirror from the command line?

I want to update my sources.list file with the fastest server from the command line in a fresh Ubuntu Server install. I know this is trivially easy with the GUI, but there doesn't seem to be a simple way to do it from from the command line? [crayon-687ad02670b3b487147998/] Automated…
github

Git – use a proxy

Configure Git to use a proxy ##In Brief You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'. Consider…