Knowledgebase - USAzy Inc

Adding an IP address permanently in Ubuntu sudo touch /etc/cloud/cloud-init.disabled

Change the remote port in CentOS 7 to 22023. sudo firewall-cmd --permanent --zone=public --add-port=22023/tcp sudo firewall-cmd --reload sed...

Change the remote port to 22 (52623) in Ubuntu systemctl disable --now ssh.socket rm -f /etc/systemd/system/ssh.service.d/00-socket.conf rm -f...

Enabling BBR in Ubuntu sudo sh -c 'echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf' && sudo sh -c...

Huawei CentOS 7 system upgrade curl -o /etc/yum.repos.d/CentOS-Base.repo...

Install a firewall on Ubuntu sudo apt install ufw sudo ufw enable

Linux host with the same name localhost hostnamectl set-hostname localhost

One-click activation of BBR acceleration in CentOS 7 yum install -y wget && wget -N --no-check-certificate...

Removing redundant kernels from CentOS 7 yum remove $(rpm -qa | grep kernel | grep -v $(uname -r))

Ubuntu network card configuration takes effect netplan apply

Ubuntu system upgrades and updates sudo apt update && sudo apt upgrade