Hi David,My reply may be bit late, But yes, You can achieve you goal with GNS3,Please note you can2 simple LAN type networks to emulate sites of the company, use OSPF kind of dynamic routing protocol for practice...Provider network, Use BGP as protoc...
Hi Chun,Yes. you have to remove the old command if your intention is to replace the old command with new one. however in live production please insert the new command and then remove old entry.Please refer below link for more information about Redis...