Reset Windows Server RDS 120 Day Grace Period

The RD Licensing grace period has expired and the service has not registered with a license server with installed licenses. A RD Licensing server is required for continuous operation. A Remote Desktop Session Host server can operate without a license server for 120 days after initial start up.  To reset the timer and again avail Read more about Reset Windows Server RDS 120 Day Grace Period[…]

Upgrade Kali Linux 2019.x to Kali Linux 2020.x

For all existing installation of Kali Linux rolling release, you can always do a quick update. But first, ensure you have the official Kali repositories enabled. sudo tee /etc/apt/sources.list<<EOF deb kali-rolling main non-free contrib EOF Take note of the current release. $ cat /etc/os-release PRETTY_NAME=”Kali GNU/Linux Rolling” NAME=”Kali GNU/Linux” ID=kali VERSION=”2019.4″ VERSION_ID=”2019.4″ VERSION_CODENAME=”kali-rolling” ID_LIKE=debian Read more about Upgrade Kali Linux 2019.x to Kali Linux 2020.x[…]

Simple Postfix Hardening

ADD TO  /etc/postfix/ vi /etc/postfix/   # Hardening SSL configuration# # enable opportunistic TLS support in the SMTP server and clientsmtp_tls_security_level = maysmtp_tls_loglevel = 1 # only offer authentication after STARTTLSsmtpd_tls_auth_only = yes # Disable SSL compressiontls_ssl_options = NO_COMPRESSION # Disable SSLv2 and SSLv3 leaving TLSv1, TLSv1.1 and TLSv1.2 enabled.smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3smtpd_tls_protocols = !SSLv2 Read more about Simple Postfix Hardening[…]