**** 𝐊𝐞𝐲 𝐏𝐨𝐢𝐧𝐭𝐬 𝐀𝐛𝐨𝐮𝐭 𝐋𝐨𝐠 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐢𝐧 𝐅𝟓 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐬 ****

 Today I would prefer to write about some Key and Important Tips about 𝐋𝐨𝐠 𝐇𝐚𝐧𝐝𝐥𝐢𝐧𝐠 in F5 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐒𝐲𝐬𝐭𝐞𝐦 (𝐓𝐌𝐎𝐒).

１－ Ｌｉｎｕｘ （ＳＹＳＬＯＧ－ＮＧ）：
- ONLY Reachable via 𝐁𝐈𝐆-𝐈𝐏 𝐌𝐆𝐌𝐓 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞
- 𝐋𝐢𝐦𝐢𝐭𝐞𝐝 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐲 for LTM Events, Linux System Events, Audit/Changes, etc.
- Uses 𝐔𝐃𝐏/𝟓𝟏𝟒 for Log Events (Standard SYSLOG Format)
- Supports 𝐋𝐨𝐜𝐚𝐥 / 𝐑𝐞𝐦𝐨𝐭𝐞 𝐋𝐨𝐠𝐠𝐢𝐧𝐠
- The Default Logging Path --> "/𝐯𝐚𝐫/𝐥𝐨𝐠/..."
- Distributes Logs to all the Configured SYSLOG Server (𝐑𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐞𝐝-𝐦𝐨𝐝𝐞) 

２－ ＴＭＯＳ （ＨSL Ｈigh Speed Logging ）：
- Reachable via either 𝐓𝐌𝐌 (𝐏𝐫𝐞𝐟𝐞𝐫𝐫𝐞𝐝) or 𝐌𝐆𝐌𝐓 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞𝐬
- Responsible for 𝐌𝐨𝐫𝐞 𝐒𝐩𝐞𝐜𝐢𝐚𝐥 𝐋𝐨𝐠𝐬 including DNS Queries/Responses, AFM Attack Detection/Mitigation Events, AFM L4-7 DDoS Events, AFM/CGNAT Address Translation Events, ASM/AWAF Attack Detection/Mitigation Events, ASM/AWAF BOT Defense Events, ASM/AWAF L7 DDoS Profile Events, etc.
- Supports 𝐌𝐨𝐫𝐞 𝐋𝐨𝐠𝐠𝐢𝐧𝐠 𝐅𝐨𝐫𝐦𝐚𝐭𝐬 including SYSLOG, Splunk, ArcSight, IPFIX
- Supports both the 𝐓𝐂𝐏 and 𝐔𝐃𝐏 Protocols for 𝐋𝐨𝐜𝐚𝐥 / 𝐑𝐞𝐦𝐨𝐭𝐞 𝐋𝐨𝐠𝐠𝐢𝐧𝐠
- Supports 𝐋𝐨𝐠 𝐒𝐞𝐫𝐯𝐞𝐫 𝐏𝐨𝐨𝐥 𝐎𝐛𝐣𝐞𝐜𝐭 with all the attractive features of Server Pool Object including Monitor, PGA, LB Methods, etc. 
- Supports 𝐓𝐇𝐑𝐄𝐄 𝐃𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐋𝐨𝐠 𝐃𝐢𝐬𝐭𝐫𝐢𝐛𝐮𝐭𝐢𝐨𝐧 𝐌𝐞𝐭𝐡𝐨𝐝𝐬 including Balanced (A/A - A/S), Adaptive (A/S), and Replicated (A/A)
- Support 𝐋𝐨𝐠 𝐅𝐢𝐥𝐭𝐞𝐫𝐬 (Handling Severity-level, Source Daemon/Process, Message ID as Desired Prefix)
- Supports 𝐋𝐨𝐠 𝐏𝐮𝐛𝐥𝐢𝐬𝐡𝐞𝐫𝐬 as a Parent-Child Relationship for Multiple 𝐋𝐨𝐠 𝐃𝐞𝐬𝐭𝐢𝐧𝐚𝐭𝐢𝐨𝐧𝐬
- It could be configured for each 𝐕𝐢𝐫𝐭𝐮𝐚𝐥 𝐒𝐞𝐫𝐯𝐞𝐫 Separately (For Limited Modules)

*** It should be noted that "𝐇𝐒𝐋" and "𝐒𝐘𝐒𝐋𝐎𝐆-𝐍𝐆" can work together, but 𝒕𝒉𝒆 𝑷𝒓𝒊𝒐𝒓𝒊𝒕𝒚 𝒐𝒇 𝑯𝑺𝑳 𝑴𝒂𝒕𝒄𝒉𝒊𝒏𝒈 𝒊𝒔 "𝑯𝒊𝒈𝒉𝒆𝒓" 𝒕𝒉𝒂𝒏 𝑺𝒀𝑺𝑳𝑶𝑮-𝑵𝑮
*** F5 Highly Recommends you to 𝒖𝒔𝒆 𝒕𝒉𝒆 "𝑯𝑺𝑳" 𝑳𝒐𝒈𝒈𝒊𝒏𝒈 𝑴𝒆𝒕𝒉𝒐𝒅 𝒊𝒏 𝑹𝒆𝒂𝒍 𝑷𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏 𝑬𝒏𝒗𝒊𝒓𝒐𝒏𝒎𝒆𝒏𝒕𝒔