How-Tos

Installations & Setups

Mikrotik

• How to setup AP with multiple VLANs and SSIDs
• How to setup WiFi with multiple SSIDs with CAPSMAN
• How to setup certificates
• How to setup HTTPS
• Setup automated backups
• Setup email alert on new updates
• Setup automated routerboard firmware upgrade
• Enable SNMP
• Additional configuration & optimizations
• Set user password

OnlyOffice

• Document Server Config - Persistence

Upgrades & Migrations

• Migration OwnCloud to NextCloud
• Migration OsTicket to a new Host machine

• How to upgrade NextCloud
• Upgrade to Zentyal 5
• Upgrade to Zentyal 5.1
• Upgrade to Zentyal 6.0
• Upgrade to Zentyal 6.1
• Upgrade to Zentyal 6.2
• Upgrade to Zentyal 7.0

Security Configurations

• Fail2ban

MX Configurations

• SPF
• DKIM
• Migrating emails from one Inbox (User A) to another (User B)

Backups

• FreeNAS
• Backuppc
• Duplicati

Storage

• NFS Storage
• iSCSI Storage

General Maintenance

Linux / Ubuntu

• Moving /var, /home to separate partition
• Grow a VM disk
• Get diff changes between original files installed with apt and current files
• Ubuntu clean packages after update
• Find symbolic links that don't point anywhere
• Check if a service is running and if not, (re)start it and send an email

VMware ESXi

• Job scheduling under ESXi 6
• Shrink a VM Disk

Issues

Zentyal

• Solve problem of Domain Users group with multiple gid
• Solve problem of Reverse DNS zone generation
• Solve problem of Dovecot - service(imap-login): process_limit reached
• Comparing Stub Files

Nextcloud

• Filescan return "file will not be accessible due to incompatible encoding"
• Filescan return "Exception during scan: Invalid request for XXXXXX (NotFoundException)