Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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mr_evil_116524's avatar
mr_evil_116524
Icon for Nimbostratus rankNimbostratus
May 19, 2015

Question about maintenance window and time

Hello All, So I have an iRULE for schedule maintenance window in our F5. This works great except for some reason is it removing the leading zero from minute, please see the iRULE below: when...
JRahm's avatar
JRahm
Icon for Admin rankAdmin
Jan 22, 2021

I was helping on another time related thread and took some of the work here and modified. Hopefully this helps someone who has a maintenance window that crosses midnight.

when RULE_INIT {
    set static::start_time 221500
    set static::end_time 001459
    set static::days [list "Wednesday" "Thursday"]  
}
when HTTP_REQUEST { 
    #scan [clock format [clock seconds] -format {%A %H%M%S}] {%s %s} cur_day cur_time
 
    ### FOR TESTING PURPOSES ONLY ###
    #scan [clock format [clock scan "Wed Jan 20 22:14:59 CST 2021"] -format {%A %H%M%S}] {%s %s} cur_day cur_time
    #scan [clock format [clock scan "Wed Jan 20 22:15:00 CST 2021"] -format {%A %H%M%S}] {%s %s} cur_day cur_time
    #scan [clock format [clock scan "Thu Jan 21 00:14:59 CST 2021"] -format {%A %H%M%S}] {%s %s} cur_day cur_time
    #scan [clock format [clock scan "Thu Jan 21 00:15:00 CST 2021"] -format {%A %H%M%S}] {%s %s} cur_day cur_time
    ### END TESTING STRINGS ###
 
    if { !(($cur_day eq [lindex $static::days 0]) && ($cur_time >= $static::start_time)) &&
         !(($cur_day eq [lindex $static::days 1]) && ($cur_time <= $static::end_time)) } {
             # NORMAL CONDITION
             HTTP::respond 200 content "Situation: Normal. $cur_day, $cur_time "
    } else {
        # MAINTENANCE CONDITION
        HTTP::respond 200 content "Situation: Maintenance. $cur_day, $cur_time "
    } 
}