Make network settings configurable #2627

Job	Run time
Linux [UBSAN] [lmdb \| clang]	38m 21s
macOS [UBSAN] [lmdb \| clang]	36m 55s
Linux [ASAN] [lmdb \| clang]	38m 52s
macOS [ASAN] [lmdb \| clang]	28m 26s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	40m 8s
macOS [TSAN] [lmdb \| clang]	31m 37s
Linux [TSAN] [lmdb \| clang]	43m 49s
macOS [UBSAN] [rocksdb \| clang]	43m 47s
Linux [LEAK] [lmdb \| clang]	41m 57s
macOS [ASAN] [rocksdb \| clang]	37m 51s
Linux [UBSAN] [rocksdb \| clang]	49m 22s
macOS [TSAN] [rocksdb \| clang]	51m 8s
Linux [ASAN] [rocksdb \| clang]	56m 35s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	58m 46s
Linux [LEAK] [rocksdb \| clang]	54m 24s
	10h 51m 58s

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