Practical tools for system, network, security, and operations administrators.

SYS

System desk

Users, processes, disks, and logs. These utilities run in the browser and explain the unglamorous work that keeps hosts honest.

289–312 / 975

Apache MaxRequestWorkers Calculator

Live

Apache MaxRequestWorkers Calculator. Calculate MPM worker limits from RAM. The result stays on this page.

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Nginx worker_connections Calculator

Live

Calculate workers and connections capacity. The result stays on this page.

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php.ini Generator

Live

Generate php.ini for memory, upload size and security. The result stays on this page.

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ACME DNS Challenge Helper

Live

Generate TXT records for DNS-01 validation. The result stays on this page.

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Web Server Upload Size Calculator

Live

Align client_max_body_size, upload_max_filesize, post_max_size. The result stays on this page.

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WordPress Server Requirements Checker

Live

Checklist of PHP/MySQL/Nginx settings for WordPress. The result stays on this page.

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Website Migration Checklist Generator

Live

Generate a server-to-server site migration checklist. The result stays on this page.

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Hosting Resource Calculator

Live

Estimate CPU/RAM for traffic and stack. The result stays on this page.

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vCPU to pCPU Ratio Calculator

Live

Calculate consolidation ratios and CPU ready risk. The result stays on this page.

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Hyper-V PowerShell Command Builder

Live

Build New-VM, Set-VM and checkpoint commands. The result stays on this page.

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VMware PowerCLI Command Builder

Live

Build PowerCLI commands for VMs and hosts. The result stays on this page.

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Proxmox CLI (qm/pct) Command Builder

Live

Build Proxmox VM and container commands. The result stays on this page.

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KVM/virsh Command Builder

Live

KVM/virsh Command Builder. Build virsh and virt-install commands. The result stays on this page.

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Cluster N+1 Capacity Calculator

Live

Cluster N+1 Capacity Calculator. Capacity reserve for host failure. The result stays on this page.

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VDI Sizing Calculator

Live

VDI Sizing Calculator. Hosts and storage for VDI users. The result stays on this page.

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Disk Image Format Converter Command Builder

Live

Build qemu-img convert commands (VMDK, VHDX, QCOW2). The result stays on this page.

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Backup Window Calculator

Live

Time to back up data at given throughput. The result stays on this page.

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RPO/RTO Calculator

Live

Translate business requirements into backup design. The result stays on this page.

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3-2-1 Backup Plan Generator

Live

3-2-1 Backup Plan Generator. Generate a 3-2-1(-1-0) backup plan. The result stays on this page.

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GFS Retention Planner

Live

Plan daily/weekly/monthly/yearly retention. The result stays on this page.

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restic Command Builder

Live

Build restic backup/restore/prune commands. The result stays on this page.

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BorgBackup Command Builder

Live

BorgBackup Command Builder. Build borg create/prune commands. The result stays on this page.

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rsync Incremental Backup Script Generator

Live

Generate rotating snapshot backup script. The result stays on this page.

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Backup Verification Checklist Generator

Live

Backup Verification Checklist Generator. Generate restore test checklist. The result stays on this page.

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