IT Mastery

Sudo: You're Doing It Wrong Unix-like operating systems use a rudimentary access control system: the root account can do anything, while other users are peasants with only minimal access. This worked fine in UNIX's youth, but now that sysadmin responsibilities are spread among many people and applications, many people need a tiny slice of root's power. Sudo lets you divide root's monolithic power between the people who need it with accountability and auditability. Sudo Mastery will teach you to: design a secure sudo policy simplify policies with lists and aliases manage shell environments verify system integrity via intrusion detection deploy a single sudo policy across your enterprise manage sudo policies via LDAP log and debug sudo record and replay full sudo sessions use authentication systems other than passwords Master sudo with Sudo Mastery!

SNMP Simple Network Management Protocol Four lies in one acronym? It's baroque. It's arcane. And it's everywhere. SNMP is one of those system management skills that people acquire by experience, stumbling through one horrid implementation after another and counting their knowledge by their scars. SNMP Mastery is your guide to the secret landscape of one of computing's most mysterious tools. You will understand: What makes SNMP simple When to use SNMP, and when not to How to use SNMP securely Objects, MIBs, and OIDs using the net-snmp management toolkit SNMPv3 efficient queries debugging proxies, SMUX, and AgentX View-based Access Control Model (VACM) extending the net-snmp agent logging, traps, and notifications