Techniquices

 From  DBeaver: refresh data not showing – Feys.be If you try to refresh the data in a table while using DBeaver, and no changes are shown, it could be that you are in transactional mode. To fix this, click on the menu ‘Database’ and select ‘Transaction mode’. Select ‘Auto-commit’ and ‘Serializable’.

From  Networking Concepts — Understanding CIDR Subnet Mask Notation | pfSense Documentation (netgate.com)   Understanding CIDR Subnet Mask Notation pfSense® software uses CIDR (Classless Inter-Domain Routing) notation rather than the common subnet mask  255.x.x.x  when configuring addresses and networks. Refer to the  CIDR Subnet Table  to find the CIDR equivalent of a decimal subnet mask. CIDR Subnet Table Subnet Mask CIDR Prefix Total IP Addresses Usable IP Addresses Number of /24 networks 255.255.255.255 /32 1 1 1/256th 255.255.255.254 /31 2 2* 1/128th 255.255.255.252 /30 4 2 1/64th 255.255.255.248 /29 8 6 1/32nd 255.255.255.240 /28 16 14 1/16th 255.255.255.224 /27 32 30 1/8th 255.255.255.192 /26 64 62 1/4th 255.255.255.128 /25 128 126 1 half 255.255.255.0 /24 256 254 1 255.255.254.0 /23 512 510 2 255.255.252.0 /22 1024 1022 4 255.255.248.0 /21 2048 2046 8 255.255.240.0 /20 4096 4094 16 255.255.224.0 /19 8192 8190 32 255.255.192.0 /18 16,384 16,382 64 255.255.128.0 /17 32,768 32,766