I just noticed that the sample pg_hba.conf in the docs doesn't contain any use of CIDR masks - here's a patch that adds  a couple of  sample lines and associated comments.
I just noticed that the sample pg_hba.conf in the docs doesn't contain
any use of CIDR masks - here's a patch that adds  a couple of  sample
lines and associated comments.

Andrew Dunstan

tangp3/gpdb,tpostgres-projects/tPostgres,snaga/postgres-xl,Chibin/gpdb,lisakowen/gpdb,50wu/gpdb,chrishajas/gpdb,pavanvd/postgres-xl,cjcjameson/gpdb,CraigHarris/gpdb,rvs/gpdb,janebeckman/gpdb,50wu/gpdb,CraigHarris/gpdb,atris/gpdb,cjcjameson/gpdb,royc1/gpdb,cjcjameson/gpdb,lpetrov-pivotal/gpdb,Postgres-XL/Postgres-XL,xuegang/gpdb,Quikling/gpdb,adam8157/gpdb,techdragon/Postgres-XL,foyzur/gpdb,edespino/gpdb,adam8157/gpdb,zaksoup/gpdb,arcivanov/postgres-xl,ahachete/gpdb,Chibin/gpdb,yuanzhao/gpdb,postmind-net/postgres-xl,arcivanov/postgres-xl,0x0FFF/gpdb,kmjungersen/PostgresXL,ahachete/gpdb,Quikling/gpdb,lisakowen/gpdb,tpostgres-projects/tPostgres,zaksoup/gpdb,Postgres-XL/Postgres-XL,ahachete/gpdb,0x0FFF/gpdb,zeroae/postgres-xl,chrishajas/gpdb,kaknikhil/gpdb,xinzweb/gpdb,zaksoup/gpdb,kaknikhil/gpdb,ashwinstar/gpdb,50wu/gpdb,Quikling/gpdb,atris/gpdb,royc1/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,lisakowen/gpdb,rubikloud/gpdb,yuanzhao/gpdb,randomtask1155/gpdb,chrishajas/gpdb,zeroae/postgres-xl,chrishajas/gpdb,0x0FFF/gpdb,xinzweb/gpdb,yazun/postgres-xl,zaksoup/gpdb,postmind-net/postgres-xl,zaksoup/gpdb,kaknikhil/gpdb,Postgres-XL/Postgres-XL,rvs/gpdb,randomtask1155/gpdb,greenplum-db/gpdb,arcivanov/postgres-xl,lpetrov-pivotal/gpdb,randomtask1155/gpdb,tangp3/gpdb,edespino/gpdb,0x0FFF/gpdb,tpostgres-projects/tPostgres,edespino/gpdb,lisakowen/gpdb,foyzur/gpdb,50wu/gpdb,lpetrov-pivotal/gpdb,lintzc/gpdb,ovr/postgres-xl,yazun/postgres-xl,xuegang/gpdb,janebeckman/gpdb,Chibin/gpdb,royc1/gpdb,cjcjameson/gpdb,zeroae/postgres-xl,Chibin/gpdb,postmind-net/postgres-xl,janebeckman/gpdb,adam8157/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,Chibin/gpdb,kaknikhil/gpdb,pavanvd/postgres-xl,ashwinstar/gpdb,Quikling/gpdb,atris/gpdb,jmcatamney/gpdb,snaga/postgres-xl,xuegang/gpdb,edespino/gpdb,kaknikhil/gpdb,ahachete/gpdb,xinzweb/gpdb,CraigHarris/gpdb,janebeckman/gpdb,edespino/gpdb,rubikloud/gpdb,jmcatamney/gpdb,rubikloud/gpdb,tangp3/gpdb,jmcatamney/gpdb,lpetrov-pivotal/gpdb,lisakowen/gpdb,Quikling/gpdb,ovr/postgres-xl,adam8157/gpdb,rvs/gpdb,Quikling/gpdb,yuanzhao/gpdb,kmjungersen/PostgresXL,0x0FFF/gpdb,yazun/postgres-xl,lintzc/gpdb,lintzc/gpdb,Postgres-XL/Postgres-XL,rvs/gpdb,lisakowen/gpdb,jmcatamney/gpdb,edespino/gpdb,arcivanov/postgres-xl,snaga/postgres-xl,xuegang/gpdb,CraigHarris/gpdb,xinzweb/gpdb,lpetrov-pivotal/gpdb,randomtask1155/gpdb,CraigHarris/gpdb,yazun/postgres-xl,edespino/gpdb,xuegang/gpdb,xuegang/gpdb,snaga/postgres-xl,foyzur/gpdb,kmjungersen/PostgresXL,oberstet/postgres-xl,foyzur/gpdb,ahachete/gpdb,rvs/gpdb,foyzur/gpdb,tpostgres-projects/tPostgres,kaknikhil/gpdb,rvs/gpdb,janebeckman/gpdb,tangp3/gpdb,postmind-net/postgres-xl,oberstet/postgres-xl,jmcatamney/gpdb,rvs/gpdb,kaknikhil/gpdb,ovr/postgres-xl,Postgres-XL/Postgres-XL,edespino/gpdb,yuanzhao/gpdb,techdragon/Postgres-XL,lpetrov-pivotal/gpdb,lisakowen/gpdb,greenplum-db/gpdb,rubikloud/gpdb,CraigHarris/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,chrishajas/gpdb,xuegang/gpdb,rubikloud/gpdb,arcivanov/postgres-xl,ahachete/gpdb,atris/gpdb,ovr/postgres-xl,royc1/gpdb,randomtask1155/gpdb,xinzweb/gpdb,randomtask1155/gpdb,randomtask1155/gpdb,royc1/gpdb,oberstet/postgres-xl,foyzur/gpdb,royc1/gpdb,zaksoup/gpdb,CraigHarris/gpdb,CraigHarris/gpdb,techdragon/Postgres-XL,cjcjameson/gpdb,zaksoup/gpdb,xuegang/gpdb,lintzc/gpdb,xinzweb/gpdb,xinzweb/gpdb,50wu/gpdb,ashwinstar/gpdb,tangp3/gpdb,pavanvd/postgres-xl,jmcatamney/gpdb,zaksoup/gpdb,janebeckman/gpdb,oberstet/postgres-xl,janebeckman/gpdb,randomtask1155/gpdb,ahachete/gpdb,Chibin/gpdb,rvs/gpdb,kaknikhil/gpdb,rvs/gpdb,cjcjameson/gpdb,lpetrov-pivotal/gpdb,tpostgres-projects/tPostgres,edespino/gpdb,janebeckman/gpdb,yuanzhao/gpdb,atris/gpdb,janebeckman/gpdb,techdragon/Postgres-XL,Quikling/gpdb,rubikloud/gpdb,xuegang/gpdb,Chibin/gpdb,atris/gpdb,zeroae/postgres-xl,50wu/gpdb,rvs/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,rubikloud/gpdb,janebeckman/gpdb,0x0FFF/gpdb,lpetrov-pivotal/gpdb,rubikloud/gpdb,tangp3/gpdb,adam8157/gpdb,Chibin/gpdb,arcivanov/postgres-xl,ahachete/gpdb,greenplum-db/gpdb,oberstet/postgres-xl,tangp3/gpdb,ashwinstar/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,lintzc/gpdb,CraigHarris/gpdb,ashwinstar/gpdb,yazun/postgres-xl,Quikling/gpdb,postmind-net/postgres-xl,Quikling/gpdb,lintzc/gpdb,techdragon/Postgres-XL,lintzc/gpdb,foyzur/gpdb,yuanzhao/gpdb,50wu/gpdb,foyzur/gpdb,adam8157/gpdb,pavanvd/postgres-xl,lisakowen/gpdb,adam8157/gpdb,Chibin/gpdb,greenplum-db/gpdb,kmjungersen/PostgresXL,lintzc/gpdb,Chibin/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,yuanzhao/gpdb,chrishajas/gpdb,jmcatamney/gpdb,kmjungersen/PostgresXL,tangp3/gpdb,chrishajas/gpdb,zeroae/postgres-xl,lintzc/gpdb,edespino/gpdb,atris/gpdb,greenplum-db/gpdb,royc1/gpdb,chrishajas/gpdb,adam8157/gpdb,Quikling/gpdb,royc1/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,atris/gpdb,snaga/postgres-xl,greenplum-db/gpdb,0x0FFF/gpdb,pavanvd/postgres-xl,50wu/gpdb,ovr/postgres-xl,xinzweb/gpdb