Disable sendmail with system startupHow To Disable sendmail with system startup
Previously, when deploying the wasnd environment in centos, it took several minutes to start sendmail. However, sendmail was not used at all, so I disabled it with
The MX record may take effect for a period of time (usually several minutes or tens of minutes, or immediately) after it is added. Therefore, before you install the configuration, first, we add the domain name. because the MX record may take effect
When we build a hadoop fully distributed cluster today,When centos is started, it always stops at starting Sendmail for a long time. The next starting Sm-client is also abnormal and slow.Later, I found out that it was related to the change of
Today when you are in a fully distributed cluster of Hadoop, when you start CentOS, you always stop at starting sendmail for a long time, and the next starting sm-client is unusually slow. Later, we found that the original is related to the change
Postfix conflicts with sendmail. postfixsendmail
After sendmail is configured on the Linux Server (CentOS release 6.6), a problem is found during the test of sending the mail. Check the sendmail service status and find that it is in "sendmail dead
Disable CentOS unnecessary default serviceMethods for CentOS Shutdown service:Graphical interface, running NTSYSV
Chkconfig–level 2345 Service Name off
Service Name
Suggestions
Explain
Acpid
Disable unnecessary services in CentOS
1. smartd checks hard disk faults. virtual hard disks cannot be checked using this service and are only useful for physical devices.Service smartd stop // stop the serviceChkconfig smartd off // set not to
In centos, the default Mail Server (SMTP) is sendmail, but Sendmail has several disadvantages, such, the configuration is complex and security vulnerabilities have been discovered for many times-and there are still hidden risks, and the mail sending
Because the previous work requires building a red hat lab environment, due to the large number of machines, all systems need to be automatically installed in batches, so I tried to use RHEL5 + PXE + DHCP + Apache + Kickstart to install the RHCE5.1 i3
Build a high-performance lamp Platform Based on centos
Outline: I. System InstallationIi. Compile and install the Basic Environment3. Configure virtual hosts and optimize Basic PerformanceIv. Basic Security SettingsV. Appendix and related
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