CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide, Second Edition [Electronic resources] نسخه متنی

اینجــــا یک کتابخانه دیجیتالی است

با بیش از 100000 منبع الکترونیکی رایگان به زبان فارسی ، عربی و انگلیسی

CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide, Second Edition [Electronic resources] - نسخه متنی

Greg Bastien; Earl Carter; Christian Degu

| نمايش فراداده ، افزودن یک نقد و بررسی
افزودن به کتابخانه شخصی
ارسال به دوستان
جستجو در متن کتاب
بیشتر
تنظیمات قلم

فونت

اندازه قلم

+ - پیش فرض

حالت نمایش

روز نیمروز شب
جستجو در لغت نامه
بیشتر
لیست موضوعات
توضیحات
افزودن یادداشت جدید












  • Foundation Summary


    The "Foundation Summary" provides a convenient review of many key concepts in this chapter. If you are already comfortable with the topics in this chapter, this summary can help you recall a few details. If you just read this chapter, this review should help solidify some key facts. If you are doing your final preparation before the exam, this summary provides a convenient way to review the day before the exam.

    The syslog message facility in the Cisco PIX Firewall is a useful means to view troubleshooting messages and to watch for network events such as attacks and service denials. Syslog messages can be configured to be sent to the following:

    • PDM Log

    • Console

    • Telnet console

    • Internal memory/buffer

    • Syslog server

    • SNMP management station


    Common to all ways of viewing syslog messages is the message level, or severity. The level specifies the types of messages sent to the syslog host, as shown in Table 8-6.

    Table 8-5. Logging Severity Levels

    Level

    Numeric Code

    System Condition

    Emergency

    0

    System unusable message

    Alert

    1

    Take immediate action

    Critical

    2

    Critical condition

    Error

    3

    Error message

    Warning

    4

    Warning message

    Notification

    5

    Normal but significant condition

    Informational

    6

    Information message

    Debug

    7

    Debug message, log FTP commands, and WWW URLs

    System log messages received at a syslog server begin with a percent sign (%) and are structured as follows:


    %PIX - level-message_number: message_text

    You can set the level with the logging command so that you can view syslog messages on the PIX Firewall console, from a syslog server, or with SNMP.


    • / 191