Failed to execute operation: Cannot send after transport endpoint shutdown
systemctl unmask httpdsystemctl unmask firewalld
How to Start and Enable Firewalld on CentOS 7
Enable Firewalld To enable firewalld, run the following command as root: systemctl enable firewalld Start Firewalld To start firewalld, run the following command as root: systemctl start firewalld Check the Status of Firewalld To check the status of firewalld, run the following command as root: systemctl status firewalld
How To Secure Nginx with Let’s Encrypt on CentOS 7
Introduction Let’s Encrypt is a new Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, Certbot, that attempts to automate most (if not all) of the required steps. …
TSC_DEADLINE disabled due to Errata; please update microcode
sudo apt-get install intel-microcode and reboot https://www.cyberciti.biz/faq/install-update-intel-microcode-firmware-linux/
piix4_smbus host smbus controller not enabled
sudo nano /etc/modprobe.d/blacklist.conf add the line: blacklist i2c-piix4 https://www.centos.org/forums/viewtopic.php?t=67288
intel_rapl: no valid rapl domains found in package 0
echo ‘blacklist intel_rapl’ >> /etc/modprobe.d/modprobe.confthen reboot https://gist.github.com/zhenkyle/897e59e1479eee8b6c66be45805ea14d
A TPM error (7) occurred attempting to read a pcr value
you can ignore the TPM feature through the Ubuntu settings. Just type this command:echo “blacklist tpm_tis” | sudo tee -a /etc/modprobe.d/tpm_tis.confWhere the command tee -a will append the echoed line (blacklist tpm_tis) into the end of /etc/modprobe.d/tpm_tis.conf or will create the file if it’s doesn’t exists. https://askubuntu.com/questions/851975/a-tpm-error-7-occurred-attempting-to-read-a-pcr-value