Step-by-step guides and fixes for server administrators: cPanel, DirectAdmin, Windows Server, email, DNS, security and more. Free to read, tested on real servers. Press / to search.
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Event ID 4771: Kerberos Pre-Authentication Failed (Codes)
Event ID 4771 is a failed Kerberos pre-authentication on a domain controller. Decode failure codes 0x18, 0x12, 0x17, 0x25 and find the client IP behind lockouts.
October 7, 2026
Event ID 4625: An Account Failed to Log On (Status Codes)
Event ID 4625 records a failed Windows logon. Decode Logon Type and Status/Sub Status codes, find the source IP and spot brute-force attacks with PowerShell.
October 7, 2026
Event ID 4012 DFSR: Replicated Folder Offline Too Long (Fix)
DFSR event ID 4012 means a replicated folder was offline longer than MaxOfflineTimeInDays. Why not to raise the limit, and how to resync safely.
October 7, 2026
Event ID 1129: Group Policy Failed, No Connectivity to a DC
Event ID 1129 means Group Policy found no network path to a domain controller. Tell a startup timing race from a real outage and fix each one.
October 7, 2026
Event ID 1058: Group Policy Failed to Read gpt.ini (Fix)
Fix event ID 1058 (Group Policy failed to read gpt.ini): find the DC and path, test access, then check SYSVOL replication, DNS, the DFS client, permissions and Kerberos.
October 7, 2026
Event ID 1030: Group Policy Processing Failed (Causes and Fix)
Event ID 1030 means Group Policy could not retrieve its GPO list from a domain controller. Read the error code, find the cause (DNS, ports, time, secure channel) and fix it.
October 7, 2026
Dovecot “Too Many Open Files”: Fix on cPanel and DirectAdmin
Fix Dovecot "Too many open files" on cPanel and DirectAdmin: tell fd, process and inotify limits apart, check the live values and raise the right one safely.
October 7, 2026
DirectAdmin vs Plesk (2026): Cost, Features, Migration
DirectAdmin vs Plesk in 2026: licence cost at 10 to 1,000 accounts, features compared (OS, web, mail, DNS, WordPress, backups), lab checks and migration options.
October 7, 2026
DFS Replication Backlog: Check It with PowerShell and Fix It
Check the DFS Replication backlog with Get-DfsrBacklog and Get-DfsrState, read the health report, and fix staging quota, sharing violations, event 2213 and 4012.
October 7, 2026
cPanel vs Plesk (2026): Which Control Panel for Hosting?
cPanel vs Plesk in 2026: licence editions and prices, Windows/IIS support (Plesk only), WP Toolkit differences, a Linux feature table and how to migrate either way.
October 7, 2026
cPanel vs DirectAdmin (2026): Price, Features and Migration
cPanel vs DirectAdmin in 2026: licence prices, a feature-by-feature table (web, mail, DNS, backups, API, OS support), resource requirements and migration in both directions.
October 7, 2026
cPanel vs CyberPanel (2026): Cost, Features and Security
cPanel vs CyberPanel in 2026: vendor prices, OpenLiteSpeed vs LiteSpeed Enterprise, features, the 2024 and 2026 security incidents, migration paths and who each suits.
October 7, 2026