chrony.conf: comments for nmap and VPNs

This commit is contained in:
Aminda Suomalainen 2020-10-31 14:32:46 +02:00
parent 0c7038da14
commit c55e6b97e8
Signed by: Mikaela
GPG Key ID: 99392F62BAE30723
1 changed files with 9 additions and 1 deletions

View File

@ -1,8 +1,15 @@
# Just a quick note on what I change on chrony, which is the servers.
# DO NOT ACTUALLY PUT THIS FILE IN PRODUCTION, GREP COPY-PASTE INSTEAD?
# Checking that something is an NTP server? Needs root
# nmap -sU -p 123 --script=ntp-info 192.168.0.1
# Checking that something has NTS?
# nmap -p 4460 -Pn ntp.example.net
## NTS servers
# Cloudflare NTS, anycast, works probably anywhere. No leap second smearing.
# Maybe `prefer` it due to anycast and NTS which seems very rare and also
# working with VPNs unlike country-local servers?
#pool time.cloudflare.com maxsources 2 iburst nts
## NTP servers
@ -33,7 +40,8 @@
# As more than one timeserver (that don't smear leap seconds) are good, keep
# the provided vendor address intact/uncommented. Or maybe don't as per
# their request on their website and I have enough timeservers.
# their request on their website and I have enough timeservers. However
# works well with always-on-VPN-use.
#pool pool.ntp.org iburst
# On pools, the default maxsources is 4 and pools would be resolved until