LINUX/MAC Service Management

(a) Port occupancy query Common commands:

• Lsof
• Netstat

Example:

• Lsof-i:80
• Netstat-an | grep 80
• Netstat-an | grep LISTEN querying the port of native listening

     (ii) Crontab Scheduled Tasks

Common commands:

• Crontab

Common options

• Crontab-l View all Scheduled Tasks
• Crontab-e new edit timed execution policy

    Time Format

Minute-time-day-month-week task

• Execute once per minute * * * * *
• executes every five minutes */5 * * * *
• 0 l8:00 per day * * * *
• execute once per hour 0 * * * *
• executed at 0 o ' Day 0 0 * * *

Weekly * * Executes once 0 0 * 0

Monthly * * Executes once 0 0 1 * *

(iii) Service services Common commands:

• SVC Service Management
• Supervisor Process Management

(d) Download on fileCommon Services SFTP (guaranteed file transfer security), the default port isdifferent accounts to different folders on SFTPNote: Different versions of Mac or Linux systems have a slightly different way of signing in to SFTP and cannot be accessed from a network with a firewall

• sftp-oport=2002 [email protected]
• SFTP-P 2002 [Email protected]
• sftp [Email protected]:2002

after entering the password to log in to the SFTP system,> Get filename to download files from the SFTP server          

LINUX/MAC Service Management