최적화(?) 중. Lightroom으로 사진 관리 Apple Photos 앱이 아닌 Adobe Lightroom으로 사진 관리. 사진 파일은 DB에 포함시키지 않고, meta data만 DB에 저장하도록 import 방식을 사용. mbpr15:Lightroom cychong$ pwd /Users/cychong/Pictures/Lightroom mbpr15:Lightroom cychong$ ls -al total 55288 drwxr-xr-x 7 cychong staff 224 Oct 9 23:36 . drwx------+ 5 cychong staff 160 Oct 8 10:55 .. -rw-r--r--@ 1 cychong staff 6148 Oct 9 22:47 .DS_Store drwxr-xr-x 20 cychong staff 640 Oct 9 23:43 Lightroom Catalog Previews.

When I call the homebrew modules for three hosts including the localhost, one host reports error. mbpr15:~ cychong$ ansible-playbook install_brew_ack.yaml --verbose No config file found; using defaults PLAY [all] ************************************************************************************************** TASK [Gathering Facts] ************************************************************************************** ok: [localhost] ok: [mini2] ok: [mini1] TASK [install ack in homebrew] ****************************************************************************** ok: [localhost] => {"changed": false, "failed": false, "msg": "Package already installed: ack"} ok: [mini1] => {"changed": false, "failed": false, "msg": "Package already installed: ack"} fatal: [mini2]: FAILED!

It is gone finally… [macOS Server 5.4 changes in High Sierra you need to know about!])https://www.imore.com/changes-macos-server-54-high-sierra) File Transfer Protocol (FTP): A longtime a security risk, for example for sending password information in clear text, FTP support will be removed from macOS server if you upgrade. As my xeros printer/scanner suppors only ftp or samba(which is much much slower than the ftp) I have to run my own ftp server in my mac mini.

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Configuration ansible client A ansible target B, C In client Ansible targets(B,C) should be listed in the following file. If required additional parameters can be specified such as login account, ssh port and etc # /etc/ansible/hosts 192.168.1.100 ansible_ssh_user=cychong ansible_ssh_port=22 192.168.1.200 ansible_ssh_user=cychong ansible_ssh_port=22 In ansible targets A should be found on the following file # grep A .ssh/authorized_keys Test run from A # ansible all -m ping 192.168.1.200 | SUCCESS => { "changed": false, "failed": false, "ping": "pong" } 192.

https://www.youtube.com/watch?v=tIN8BjHwpNs Other similar videos Architecture for fine-grain, high-resolution Telemetry for network elements. Jun 4 2015, Juniper Networks, Presented in NANOG Visualizing Cisco Telemetry Data using Elasticsearch, Logstash and Kibana

출처 : sdxcentral, Feb 5, 2016 tools presented in the video reference video ppt

출처 : https://blogs.cisco.com/sp/streaming-telemetry-with-google-protocol-buffers Summary JSON, “compact” GPB and “Key-Value” GPB “Compact” GPB data on wire can be decoded without the decoder ring while “Key-Value” GPB data is Self-Describing. Compact GPB can be used with UDP(default) and TCP(optionally) “Key-value” GPB is only for TCP 833 bytes of compact GPB while more than 4000 bytes for Key-value GPB Compressed JSON(?)

Seems that configuration and operation data are defined in a different yang file though it is not clear they are module or submodule The models are in the .yang format. A model with: -oper in the model name indicates an operational model. For example, Cisco-IOS-XR-cdp-oper.yang is an operational model for Cisco Discovery Protocol (CDP). -cfg indicates a configuration model. For example, Cisco-IOS-XR-cdp-cfg.yang is a configuration model for CDP. -act indicates a NETCONF actions model.

Why You Should Care About Model-Driven Telemetry from CISCO blog Summary Periodic polling -> Pushing(Streaming) Model based data with YANG Use standard encoding such as JSON, Google Protocol Buffers Easy to manipulate, connect to analytic solutions 1-min poll is too slow For the last 25 years, network operators have heavily relied on SNMP polling and CLI screen-scraping to extract operational data from the network. But the new and automated demands of today’s networks have pushed these mechanisms to the breaking point.