ubuntu:networking:dns:check_dns_cache
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| ubuntu:networking:dns:check_dns_cache [2021/01/13 10:33] – peter | ubuntu:networking:dns:check_dns_cache [2021/01/13 11:38] (current) – peter | ||
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| Line 2: | Line 2: | ||
| <code bash> | <code bash> | ||
| + | resolvectl statistics | ||
| + | |||
| + | or | ||
| + | |||
| systemd-resolve --statistics | systemd-resolve --statistics | ||
| </ | </ | ||
| Line 30: | Line 34: | ||
| If it's 0, you just flushed the DNS cache. | If it's 0, you just flushed the DNS cache. | ||
| + | |||
| + | The cache can store up to 4096 DNS responses for up to 2 hours, so don’t expect to see a massive number listed as the current cache size. | ||
| + | |||
| + | The DNS cache can’t grow to more than 420 kB when used to its fullest; so no concern about memory usage. | ||
| </ | </ | ||
ubuntu/networking/dns/check_dns_cache.1610534012.txt.gz · Last modified: 2021/01/13 10:33 by peter