Minor You will get a seg fault when stopping the Signer Engine if you have the TSIG-element in the addns.xml.
user@ubuntu:~$ sudo ods-signer stop *** glibc detected *** /usr/local/sbin/ods-signerd: free(): invalid pointer: 0x00000000025e8b90 *** ======= Backtrace: ========= /lib/libc.so.6(+0x77806)[0x7f532ef8c806] /lib/libc.so.6(cfree+0x73)[0x7f532ef930d3] /usr/local/lib/libldns.so.1(ldns_rdf_deep_free+0x30)[0x7f532f826394] /usr/local/sbin/ods-signerd[0x4327a9] /usr/local/sbin/ods-signerd[0x4080fd] /usr/local/sbin/ods-signerd[0x407a6f] /usr/local/sbin/ods-signerd[0x424b1e] /usr/local/sbin/ods-signerd[0x427494] /usr/local/sbin/ods-signerd[0x4274ff] /usr/local/sbin/ods-signerd[0x40e4f3] /usr/local/sbin/ods-signerd[0x40fedb] /usr/local/sbin/ods-signerd[0x406cc7]
The addr2line suggest the following back trace.
signer/src/wire/tsig.c:879 signer/src/adapter/addns.c:728 signer/src/adapter/adapter.c:274 signer/src/signer/zone.c:702 signer/zonelist.c:421 signer/zonelist.c:458 signer/src/daemon/engine.c:1102 signer/src/daemon/engine.c:1064 signer/src/ods-signerd.c:169
<Adapter> <DNS> <TSIG> <Name>bellgrim.se</Name> <Algorithm>hmac-sha256</Algorithm> <Secret>Pei0qsdc+0E=</Secret> </TSIG>