Operations helper
docker-data-move.sh
An interactive helper that migrates Docker data-root onto a larger disk with path checks, backups, and verification.
curl -fL 'https://www.helper.sh/docker-data-move.sh' -o './docker-data-move.sh'Platform
CentOS 7 scripts
Recovery scripts for existing CentOS Linux 7 hosts. CentOS Linux 7 reached end of life on June 30, 2024; use these only for compatibility, recovery, or migration preparation, not as a new baseline.
Updated: 2026-10-29
Platform
Related scripts
Network client installer
install_openvpn_client_centos7.sh
CentOS 7 OpenVPN client setup with optional local credentials and DNS hooks. Package installation alone does not establish a tunnel.
curl -fL 'https://www.helper.sh/install_openvpn_client_centos7.sh' -o './install_openvpn_client_centos7.sh'System maintenance
switch-centos7-repo.sh
A CentOS 7 repository switch helper for replacing outdated or unreachable yum mirrors with usable sources.
curl -fL 'https://www.helper.sh/switch-centos7-repo.sh' -o './switch-centos7-repo.sh'System maintenance
optimize_centos7_ssh.sh
A CentOS 7 SSH maintenance script that disables reverse DNS lookup and GSSAPI auth, selects IPv4, validates sshd_config, and restarts sshd.
curl -fL 'https://www.helper.sh/optimize_centos7_ssh.sh' -o './optimize_centos7_ssh.sh'Security hardening
centos_disable_password_ssh.sh
A CentOS SSH hardening script that checks for a non-empty authorized_keys file, disables password login, keeps public key auth enabled, validates sshd_config, and reloads sshd.
curl -fL 'https://www.helper.sh/centos_disable_password_ssh.sh' -o './centos_disable_password_ssh.sh'Developer utility
tree-to-file.sh
Exports the current directory to tree.txt; may install tree or use a fallback with different filters. Review overwrite, hidden-name and incomplete-output risks first.
curl -fL 'https://www.helper.sh/tree-to-file.sh' -o './tree-to-file.sh' yum recoveryMirror switchingSSH hardeningOpenVPN client accessLegacy maintenance
CentOS Linux 7 ended support on June 30, 2024. Plan a migration because routine updates are no longer provided.
These scripts may help recover an existing host or prepare a migration. Limit exposure and review backup and migration plans before continued operation.