Need answers for : DevOps Linux Questions

1) [url removed, login to view] you had to start from scratch to build out a new application environment for a three tiered web-app - Web Server, App Server, and Database, what tools would you use to deploy and run this environment. Why would you use choose those tools? The environment could be in cloud,, VMWare, physical, etc. - whatever you are most comfortable with.

1b) What type of monitoring/alerting would you put in place for an application and the environment in which it runs?

[url removed, login to view] the following logs, write a command line to print the systemd logs. Please format the output to include the Date, Time, and message. Do not include the hostname (hub-01) or the process that created to the message.

Feb 15 18:24:13 hub-01 [url removed, login to view][21577]: INFO ([url removed, login to view]): Flushing 2 transactions during flush #25340

Feb 15 18:25:01 hub-01 CRON[12320]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 1

Feb 15 18:25:01 hub-01 systemd[1]: Starting Checks ntp to ensure offsets are within threshold…

Feb 15 18:25:01 hub-01 systemd[1]: Started Checks ntp to ensure offsets are within threshold.

Feb 15 18:25:13 hub-01 [url removed, login to view][21577]: INFO ([url removed, login to view]): Flushing 1 transaction during flush #25360

Feb 15 18:25:50 hub-01 [url removed, login to view][21581]: INFO ([url removed, login to view]): Flush #7770: flushed 481 metrics, 0 events, and 1 service check run

[url removed, login to view] have 5 systems that need to keep accurate time and must have an extremely small time differential amongst those systems, how would you configure the systems?

[url removed, login to view] have an application that won’t start. What steps would you take to determine why?

Skills: Linux, VMware

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