the issue we have a database table containing usernames and passwords, but we want to make them temporary like expiring after a fixed number of days from the creation. This is typical usage for a wi-fi captive portal with RADIUS authentication backed on mysql. the idea we store a new field in the table with the timestamp, and run a periodic “cleaner” job that deletes record older than X days. ...
introduzione Ho sempre avuto un debole per il software leggero e snello: sara’ un retaggio di quando la memoria si misurava in Kb e lo storage era basato su… audiocassette! Lua e’ un linguaggio che incarna questa filosofia: occupa circa un centinaio di kbyte (meno di molte pagine web), ha una stupefacente rapidita’ di esecuzione, una sintassi chiara e, come bonus, gira su qualsiasi CPU per cui sia disponibile un compilatore C. ...
I want to keep under control a system where each user has an amount of filesystem quota reserved; in particular I would like to get notified if and when a user exceeds some treshold. Since I already have Monit in place in the server, I took the chance to write a small Go utility in order to retrieve the quota percentage. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ...
Recently I have been in a situation where I needed a simple ‘batch’ job scheduler, where I could submit some long-running tasks to a server and have a ‘system’ that serialize access the execution with some basic job control facilities (remove a job from the queue, stop the processing, and so on). Linux printing subsystem is already designed to do this, and we can exploit the CUPS printing subsystem to run our “batch” jobs. ...