Username -- Redshift user name Password -- Redshift password Secret resource url Advanced Options Record fetch size-- Number of records to fetch at once. dirty_expire_centisecs 縺ォ繧医▲縺ヲ30遘堤オ後▲縺溘ム繝シ繝�繧」繝シ繝壹�シ繧ク縺ッ譖ク縺榊�コ縺怜ッセ雎。縺ィ縺ェ繧翫∪縺吶′縲‥irty_writeback_centisecs 縺�0縺ィ險ュ螳壹&繧後※縺�繧九�ョ縺ァpdflush螳壽悄螳溯。後b縺輔l縺壹�√★縺」縺ィ繝。繝「繝ェ荳翫↓谿九▲縺溽憾諷九→縺ェ繧翫∪縺吶�� Both of them are used for access control and define a set of permissions. 窶� Tim Sep 12 '19 at 20:18 @Tim You need Reverse DNS configured properly for most email providers to accept mail from your server. If you allow your maintenance to expire past the grace period, you must purchase a new license of Redshift at full retail price.