esplora is just the web ui frontend, you also need to setup the (forked) electrs backend for indexing and for providing the HTTP API that esplora queries.
electrs can index the bitcoin block chain using two methods: by reading the blk files directly out of disk, or by querying for blocks using the bitcoind rpc. The first method is significantly faster, but ...
There is no need to resolve anything - some miners create arbitrary versions to attempt to speed up the mining process, as it gives them an additional field in the block block header to alter without having to recalculate the merkle root and other fields.
This is harmless, provided they aren't producing invalid blocks for version 2, in which case the block ...
If anyone got problem with reaching bitcoin-rpc server located on vps, the best way in my opinion would be port redirecting over shh. By this command:
ssh [user]@[host] -p [port] -L 18332:127.0.0.1:18332
You will be able to send comands to testnet rpc-server via your computer terminal as localhost.
I finally end up with this setting for my raspberry
content of the file bitcoind.service
tail -f .bitcoin/debug.log
You will see the progress % in the end of every line.
2019-05-21T15:53:22Z UpdateTip: new best=00000000000007463022a75f47fbce4832d885cccfddc66b9ae6d332888f825d height=181720 version=0x00000001 log2_work=68.184645 tx=3482689 date='2012-05-26T22:08:18Z' progress=0.008422 cache=256.7MiB(1838887txo)
Here, in case you did not find it ...