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Verifying the Installation Open your terminal and confirm Gits available: git --version Setting Up Identity Two scopes exist for identity configuration—global (applied everywhere) or repository-local. Global Setup git config --global user.name "your-username" git config --global user.email "your-email@example.com" To inspe ...

SSH employs various cryptographic key types including RSA, DSA, ECDSA, and Ed25519. Each type utilizes distinct mathematical principles and offers different performance characteristics. The following output shows typical SSH host key files present on a system: -rw------- 1 root root 607 Oct 4 22:43 ssh_host_dsa_key -rw-r--r-- 1 root root ...

Setting Up YUM Repository sudo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak sudo curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo sudo yum makecache Initial Configuration ...

When managing a small number of machines, handling them one by one might be acceptable. However, when dealing with dozens or hundreds of machines, repeating the same commands manually becomes tedious and error-prone. A more efficient approach is to write batch processing shell scripts. This article documents several batch processing scripts, in ...

Accelerate SSH Connections To reduce SSH connection latency, adjust the server-side configuration in /etc/ssh/sshd_config. First, back up the original file: cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak Edit the configuration file and apply these changes: Set GSSAPIAuthentication to no (typically around line 79). Uncomment and set UseDNS t ...