linux

0 comments on "Cacti Server"

Input Validation Whitelist Protection Cacti Data Input methods that call a script can be exploited in ways that a non-administrator can perform damage to either files owned by the poller account, and in cases where someone runs the Cacti poller as root, can compromise the operating system allowing attackers to exploit your infrastructure. Therefore, several…

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0 comments on "Test SMTP Auth and StartTLS"

To test SMTP auth with StartTLS, I used the following method. Base64 encode the username and password. echo -ne “yourpassword” | base64 eW91cnBhc3N3b3Jk echo -ne “your@email.com” | base64 eW91ckBlbWFpbC5jb20= Connect to the SMTP server using the openssl client. openssl s_client -connect smtp.test.com:587 -starttls smtp -crlf Once connected to the mail server, identify myself with EHLO…

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0 comments on "Installing Debian 11.3 on my Lenovo Yoga 2"

I have an old Lenovo Yoga 2 (i5-5400u, 4GB RAM, 128GB SSD). This 2-in-1 system does not have an ethernet port and during Debian installation using the netinstall ISO, non-free firmware is needed for the Intel wireless controller. I went to Debian’s installer page for non-free firmware (for Bullseye) and downloaded the zip file: https://cdimage.debian.org/cdimage/unofficial/non-free/firmware/bullseye/11.3.0/…

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0 comments on "Disable User’s Home Folder Creation in Zentyal"

By default, Zentyal creates a Home Folder for each user created through the web interface and not through Active Directory Users & Computers (dsa.msc). To disable this action, modifying the Samba stub for Zentyal is the preferred method. In order to maintain the changes across Zentyal and Samba updates, a Samba stub should be copied…

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