Dns Daemon

COLLECTD is a small, modular daemon for regular statistical collection of system information and for storing valuable information in a variety of ways. The main features include: a large number of plug-ins to collect CPU, disk and memory utilization, network interface and DNS communication, network latency, database statistics, and so on. Custom statistics can be easily added in a variety of ways, including executing any programs and plug-ins written in Perl. Its advanced features include a powerful network code to collect statistics for the entire setup, as well as SNMP Integrated query network devices. Col ...

Objective This article describes how to install, configure, and manage a meaningful Hadoop cluster, which can scale from small clusters of nodes to thousands of-node large clusters. If you want to install Hadoop on a single machine, you can find the details here. Prerequisites ensure that all required software is installed on each node in your cluster. Get the Hadoop package. Installing the Hadoop cluster typically extracts the installation software onto all the machines in the cluster. Usually, one machine in the cluster is designated as Namenode, and the other is different ...

Some distributions run a http://www.aliyun.com/zixun/aggregation/12499.html "> Domain resolution Caching service in the background." Of course, there are also distributions that do not have this service. If you have this program in the background of Ubuntu, you can use the Restart NSCD service to empty the cache. Why empty the cache? Most DNS clients cache the results of domain name resolution locally, which increases access to the same address ...

11.2.1 Manually configure edit exports file if you prefer to use the http://www.aliyun.com/zixun/aggregation/18444.html > Text Editor to edit the configuration file or you do not have the X Window System installed, Can be directly personalized profile. /etc/exports files control which directories are exported by Server for NFS in the following format: directory hostname (options) ...

Ubuntu 9.10 Services only know the role of a part of the service, hope to be filled, some services are more important, the adjustment must be very acpi-supp$ this is about power support by default is 1,2,3,4,5 boot, you can adjust it to the S-level. Acpid ACPI Daemon, the default is 2-5 open, you can not pipe. Alsa-utils This service seems to replace the ALSA, so it's OK to open it at the s level. Anacron This is a process that is used to execute until the time is not executed ...

ServerRoot "/ usr / local" ServerRoot is used to specify the directory where the daemon httpd is running. After the httpd starts, the current directory of the process is automatically changed to this directory. Therefore, if the file or directory specified in the settings file is a relative path, The path is under the path defined by this ServerRotot. ScoreBoardFile /var/run/httpd.scoreboard h ...

Instagram 5 Legendary engineers behind the technical Revelation (PPT) published in 2013-03-28 22:13| Times Read | SOURCE csdn| 0 Reviews | Author Guo Shemei Postgresqlredismemcachedinstagram Open Source AWS Summary: Instagram, a photo-sharing app developer based on iOS and Android, with a unique operating philosophy, with only 5 engineers, Team A total of 13 people in the case of success to their own 7 ....

Postfix is an electronic http://www.aliyun.com/zixun/aggregation/12489.html "> mail server, which is served by the IBM Watson Research Center (T.J). Wietse Venema, a Dutch researcher at Watson Research Center, was created to improve the SendMail mail server. First appeared in the late 1990, is an open source software. Postf ...

Six open source monitoring tools which one did you use? Published in 2013-03-15 12:22| Times Read | SOURCE csdn| 0 Reviews | The author Zhang Hong Month open source Monitoring Tool Muningangliagraphitepingdom Summary: This article introduced 6 practical monitoring tools, not only can you monitor the network resources, but also monitor the server, user requests, Web performance, etc., to your site to provide comprehensive,  One-stop guidance and monitoring. If you think the site is built, it's all right.

Today, open source firewalls are numerous. 　　This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The function is to filter packets from the network stack in the kernel, including: listing the contents of the packet filtering rule set, and executing fast because it only checks the header of the packet, and the administrator can ...