KVM | debian | building a bridge
You did set up a kvm and have one physical interface with IP 192.168.100.121, i.e. eno1? To get a bridge tune your /etc/network/interfaces like this: That means: Yout establish a virtual bridge br0 with ip 192.168.100.121 and your physical interface eno1 is docked on the inner side of this bridge. YOURLAN << br0WITH192.168.100.121<<>>YOURPHYSICALeno1
elasticsearch | rename an index
You can’t rename indices, but you can clone them:
Elasticsearch | Kibana | Discover | quick sort on some fields/columns greyed out
You can’t use the quick sort feature on your fields/colums cs it’s disabled/greyed out? Most likely you did add your documents to your index without doing explicit mapping on index creation. Of course it’s possible to drop your data into the index without defining an explicit mappin, but the quick sort option will be disabled […]
elasticsearch | import eml or files from maildir
Install maildir-utils and use to parse the files and write a json. Use to eliminate bad characters who do not fit into your charset. Some (windows) mail clients (outlook?) put an CRLF at the end of to, cc, bcc or subject , so do something like an Elasticsearch will not accept json files encapsulated in […]
decode quoted printable
i.e. from encoded mailheaders (=?UTF-8?Q?Thomas_Gr=c3=a4fner?=) or simply use the qprint command
Elasticsearch + Debian 11 | tweak the server
Set ulimit -n: Edit /etc/profile and add ulimit -n 65535 Disable swapping by removing all swap lines from your fstab. As an alternative add the following line to your elasticsearch.yml: bootstrap.memory_lock: true Then test it using the famous Kibana (DevTools) Console: GET _nodes?filter_path=**.mlockall It should return true. Do not tune the java dns timeouts.
bytes and bones 
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