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Unread book in perfect condition.

Unread book in perfect condition.

LEVEL SENSE is the only system on the market that is fully powered and automatically recharged with it's own internal back-up battery. Warehouses your data on our servers- see the cycling of your pump online- has local and remote alarms via siren, text, and E-mail - Android and Apple iOS apps LEVEL SENSE will send an alert you before your sump overflows via E-mail and/or Text Message- show the depth of water in your sump online (no lifting the lid on the sump anymore)- monitor the humidity and alert if water comes through the foundation. Humidity of 60% or more is required for mold to grow- Detect and send an alert temperatures above or below those you specify guarding against frozen pipes- Detect leaks using the included leak sensor that can be used for a second line of defense for the Sump Pump, a water heater or another purpose- Alert if AC power is lost to the unit (i.e. if power is out to your pump)- Alert (after a duration you specify) if internet connection is lost- Interface to a home alarm (or other device). The low-profile float switch mounting bracket ensures that there will be no additional wires in the sump to inhibit proper pump operation. See up to 7-days of depth history for water in the sump. Input the E-mail addresses and text number for notifications LEVEL SENSE has a build in rechargeable battery and integrated battery charger for 4-hours. Never change a battery again.

Ships in a BOX from Central Missouri! UPS shipping for most packages, (Priority Mail for AK/HI/APO/PO Boxes).

A cutting-edge media history on a perennially fascinating topic, which attempts to answer the crucial question: Who is in charge, the servant or the master? Though classic servants like the butler or the governess have largely vanished, the Internet is filled with servers: web, ftp, mail, and others perform their daily drudgery, going about their business noiselessly and unnoticed. Why then are current-day digital drudges called servers? Markus Krajewski explores this question by going from the present back to the Baroque to study historical aspects of service through various perspectives, be it the servants’ relationship to architecture or their function in literary or scientific contexts. At the intersection of media studies, cultural history, and literature, this work recounts the gradual transition of agency from human to nonhuman actors to show how the concept of the digital server stems from the classic role of the servant.

Ships in a BOX from Central Missouri! Ships same or next business day.�UPS shipping for most packages, (Priority Mail for AK/HI/APO/PO Boxes).

"I think we're gonna need a bigger web server." OpenBSD has a solid reputation for security and stability. It's well known for the OpenSMTPd mail server, the LibreSSL cryptography library, and the PF packet filter. But nobody ever talks about the load balancer, or the web server. Until now. The httpd web server provides a fast, stable, secure environment for your web applications. The relayd load balancer lets you distribute Internet application load across multiple hosts. Between the two, you can slash hundreds of thousands of dollars off the cost of building, deploying, and managing applications. With Httpd and Relayd Mastery you'll learn how to: -set up web sites -configure software to run in a chroot -run dozens or hundreds of sites on one host -dynamically reconfigure sites with Lua patterns -manage site logs -maintain free, globally-valid SSL certificates -improve performance with SSL stapling -install and maintain two-server clusters -distribute traffic between any number of hosts -stop worrying about old SSL versions and bad crypto algorithms Slash the amount of time you spend futzing with web servers. Get Httpd and Relayd Mastery today!

“I think we’re gonna need a bigger web server.” OpenBSD has a solid reputation for security and stability. It’s well known for the OpenSMTPd mail server, the LibreSSL cryptography library, and the PF packet filter. But nobody ever talks about the load balancer, or the web server. Until now. The httpd web server provides a fast, stable, secure environment for your web applications. The relayd load balancer lets you distribute Internet application load across multiple hosts. Between the two, you can slash hundreds of thousands of dollars off the cost of building, deploying, and managing applications. With Httpd and Relayd Mastery you’ll learn how to: · set up web sites · configure software to run in a chroot · run dozens or hundreds of sites on one host · dynamically reconfigure sites with Lua patterns · manage site logs · maintain free, globally-valid SSL certificates · improve performance with SSL stapling · install and maintain two-server clusters · distribute traffic between any number of hosts · stop worrying about old SSL versions and bad crypto algorithms Slash the amount of time you spend futzing with web servers. Get Httpd and Relayd Mastery today!

Postfix is a Mail Transfer Agent (MTA): software that mail servers use to route email. Postfix is highly respected by experts for its secure design and tremendous reliability. And new users like it because it's so simple to configure. In fact, Postfix has been adopted as the default MTA on Mac OS X. It is also compatible with sendmail, so that existing scripts and programs continue to work seamlesslyafter it is installed.Postfix was written by well-known security expert Wietse Venema, who reviewed this book intensively during its entire development. Author Kyle Dent covers a wide range of Postfix tasks, from virtual hosting to controls for unsolicited commercial email.While basic configuration of Postfix is easy, every site has unique needs that call for a certain amount of study. This book, with careful background explanations and generous examples, eases readers from the basic configuration to the full power of Postfix. It discusses the Postfix interfaces to various tools that round out a fully scalable and highly secure email system. These tools include POP, IMAP, LDAP, MySQL, Simple Authentication and Security Layer (SASL), and Transport Layer Security (TLS, an upgrade of SSL). A reference section for Postfix configuration parameters and an installation guide are included.Topics include:Basic installation and configurationDNS configuration for emailWorking with POP/IMAP serversHosting multiple domains (virtual hosting)Mailing listsHandling unsolicited email (spam blocking)Security through SASL and TLS From compiling and installing Postfix to troubleshooting, Postfix: The Definitive Guide offers system administrators and anyone who deals with Postfix an all-in-one, comprehensive tutorial and reference to this MTA.

“I think we’re gonna need a bigger web server.” OpenBSD has a solid reputation for security and stability. It’s well known for the OpenSMTPd mail server, the LibreSSL cryptography library, and the PF packet filter. But nobody ever talks about the load balancer, or the web server. Until now. The httpd web server provides a fast, stable, secure environment for your web applications. The relayd load balancer lets you distribute Internet application load across multiple hosts. Between the two, you can slash hundreds of thousands of dollars off the cost of building, deploying, and managing applications. With Httpd and Relayd Mastery you’ll learn how to: · set up web sites · configure software to run in a chroot · run dozens or hundreds of sites on one host · dynamically reconfigure sites with Lua patterns · manage site logs · maintain free, globally-valid SSL certificates · improve performance with SSL stapling · install and maintain two-server clusters · distribute traffic between any number of hosts · stop worrying about old SSL versions and bad crypto algorithms Slash the amount of time you spend futzing with web servers. Get Httpd and Relayd Mastery today!

Includes new coverage of Novell Linux Desktop and Open Enterprise Server (Novell's traditional environment running on SUSE), with information on YaST management tools and the OpenExchange e-mail server Introduces basic Linux methodologies, including partitions, filesystems, filesystem layout, and more Covers the SUSE system, command line programs, implementing online services, and using SUSE business tools in the enterprise setting Features a section devoted to end-user needs Also covers virtualization, including dosemu, wine, Crossover Office, uml xen and Vmware, expanded coverage of SUSE with sendmail, CUPS, LDAP and more Companion DVD includes the SUSE Linux distribution