Nagios: System and Network Monitoring (2nd Edition)

By Wolfgang Barth

Uploaders Notes: Uploaded as a request, I even have it as retail in ePub format.

Good process directors realize difficulties lengthy ahead of someone asks, "Hey, is the web down?" Nagios, an open resource approach and community tracking software, has emerged because the most well-liked resolution for sys admins in agencies of all sizes. It's powerful but in addition complicated, and Nagios: method and community tracking, second Edition, up to date to deal with Nagios 3.0, might help you are taking complete benefit of this program.

Nagios, which runs on Linux and so much *nix versions, could be configured to consistently video display community companies equivalent to SMTP, POP3, HTTP, NNTP, SSH, and FTP. it could actually additionally supervise host assets (processor load, disk and reminiscence utilization, working strategies, log documents, etc) and environmental components, similar to temperature and humidity. This ebook is your advisor to getting the main out of this flexible and strong tracking tool.

Inside Nagios, you'll find out how to: * set up and configure the Nagios center, all regular plugins, and chosen third-party plugins
* Configure the notification procedure to provide you with a warning of ongoing problems-and to alarm others in case of a major crisis
* software occasion handlers to take computerized motion whilst difficulty occurs
* Write Perl plugins to customise Nagios in your particular needs
* speedy comprehend your Nagios information utilizing graphing and visualization tools
* computer screen home windows servers, SAP structures, and Oracle databases

The e-book additionally incorporates a bankruptcy that highlights the variations among Nagios models 2 and three and provides sensible migration and compatibility advice. Nagios: method and community tracking, second Edition is a smart place to begin for configuring and utilizing Nagios on your personal environment.
About the Author

Wolfgang Barth has written a number of books for pro community directors, together with Firewall (Suse Press), Network Analysis (Suse Press), and Backup suggestions with Linux (Open resource Press). he's a certified method administrator with massive adventure utilizing Nagios.

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132 6. 7. 1 checking out TCP ports . . . . . . . . . . . . . . . . . . . . . . . 132 6. 7. 2 tracking UDP ports . . . . . . . . . . . . . . . . . . . . a hundred thirty five 6. eight tracking Databases . . . . . . . . . . . . . . . . . . . . . . . . . 136 6. eight. 1 PostgreSQL . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 6. eight. 2 MySQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 6. nine tracking LDAP listing prone . . . . . . . . . . . . . . . . 143 6. 10 Checking a DHCP Server . . . . . . . . . . . . . . . . . . . . . . . 146 6. eleven tracking UPS with the community UPS instruments . . . . . . . . . . . 149 6. 12 future health payment of an NTP Server with 7 checking out neighborhood assets ÒØÔ Ô Ö . . . . . 154 157 7. 1 loose harddisk skill . . . . . . . . . . . . . . . . . . . . . . . 158 7. 2 usage of the switch house . . . . . . . . . . . . . . . . . . . . 162 7. three checking out the method Load . . . . . . . . . . . . . . . . . . . . . . . . 162 7. four tracking tactics . . . . . . . . . . . . . . . . . . . . . . . . . 163 7. five Checking Log records . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 7. five. 1 the traditional plugin 7. five. 2 the fashionable edition: 7. five. three The Swiss military knife: ÐÓ . . . . . . . . . . . . . . 168 ÐÓ ×ºÔÐ . . . . . . . . . . 169 ÐÓ Ð × . . . . . . . . . one hundred seventy 7 Contents 7. 6 retaining Tabs at the variety of Logged-In clients . . . . . . . . 177 7. 7 Checking the method Time . . . . . . . . . . . . . . . . . . . . . . 177 7. 7. 1 Checking the process time through NTP . . . . . . . . . . . . . 177 7. 7. 2 Checking approach time with the time protocol . . . . . . 178 7. eight usually Checking the prestige of the Mail Queue . . . . . . . . . one hundred eighty 7. nine keeping track of the amendment Date of a dossier . . . . . . . . 181 7. 10 tracking UPSs with Ô ÙÔ× . . . . . . . . . . . . . . . . . . . 182 7. eleven Nagios screens Itself . . . . . . . . . . . . . . . . . . . . . . . . . 183 7. eleven. 1 working the plugin manually with a script . . . . . . . . 184 7. 12 exams with LM Sensors . . . . . . . . . . . . . . . . . 184 eight Plugins for targeted initiatives 187 eight. 1 The Dummy Plugin for exams . . . . . . . . . . . . . . . . . . . . . 188 eight. 2 Negating Plugin effects . . . . . . . . . . . . . . . . . . . . . . . . 188 eight. three putting links with ÙÖÐ Þ . . . . . . . . . . . . . . . . . 189 eight. four Checking Host or carrier Clusters as an Entity . . . . . . . . . . 189 eight. five Summarizing tests with ÑÙÐØ . . . . . . . . . . . . . 191 eight. five. 1 Multiple-line plugin output . . . . . . . . . . . . . . . . . 193 eight. five. 2 install standards . . . . . . . . . . . . . . . . . . . 194 eight. five. three deploy and trying out . . . . . . . . . . . . . . . . . . . . 194 eight. five. four Configuration dossier . . . . . . . . . . . . . . . . . . . . . . . 195 eight. five. five Command-line parameters . . . . . . . . . . . . . . . . . . 196 eight. five. 6 functionality info and PNP eight. five. 7 basic enterprise approach tracking . . . . . . . . . . . . 199 . . . . . . . . . . . . . . . . . 198 nine Executing Plugins through SSH 205 Ý ×× Plugin . . . . . . . . . . . . . . . . . . . . . . 206 nine. 1 The nine. 2 Configuring SSH . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 nine. 2. 1 producing SSH key pairs at the Nagios server . . . . . . 208 Ó× at the goal host . . . . . . 209 Ý ×× . . . 209 nine. 2. three Checking the SSH connection and nine. 2. 2 developing the consumer Ò nine. three Nagios Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 210 10 The Nagios distant Plugin Executor (NRPE) 10. 1 install eight 213 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 Contents 10. 1. 1 Distribution-specific programs . . . . . . . . . . . . . . . 214 10. 1. 2 deploy from the resource code . . . . . . . . . . . . . . 215 10. 2 beginning through the inet Daemon . . . . . . . . . . . . . . . . . . . . . 216 10. 2. 1 Ü Ò Ø configuration . . . . . . . . . . . .

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