Ending up with this kind of error booting a guest machine on your Xen hypervisor? Running: xm create /cloud/config/hjxmogr553e5jx Using config file “/cloud/config/hjxmogr553e5jx”. Error: Unable to connect to xend: No such file or directory. Is xend running? Fatal: Virtual machine has not been started on hypervisor Executing Rollback… The two possible causes would be the… Read More »
Monitoring your temperature hardware on Linux made easy with “lm_sensors“. On CentOS or RedHat Enterprise, you can easily install the software using Yum as followed : yum install lm_sensors Then, you need to configure the software to monitor your hardware. You will have to answer several YES/no questions to probe your system. Just do the… Read More »
Getting this alert with one of your server backup policy with R1Soft? “Error Server [11] reset(): database disk image is malformed(11)” This is because the VSS snapshot mechanism on Windows allow only one snapshot partition at a time. It’s likely that you are using the MSSQL plugin to backup your databases with MSSQL installed on… Read More »
Here is the steps required to test and send an e-mail using the command prompt and Telnet. See the commands required below : EHLO MAIL from: RCPT to: DATA From: To: Subject: . QUIT Here is an overview of what you’ll get with the commands in bold : # telnet smtp.domain.tld 25 Trying 0.0.0.0… Connected… Read More »
Having this error while trying to test connection between your machine and R1Soft server? ERROR: Could not authenticate agent ERROR: Agent authentication failed. ERROR: AGENT: host (0.0.0.0) port (00000) failed authentication ERROR: AGENT: RSA decrypt failed This mean your server have a different authentication key than expected. You need to remove the current key and… Read More »
Having this error performing task on your MySQL database? Couldn’t execute ‘SHOW TRIGGERS LIKE ‘table_name”: Got error 28 from storage engine (1030) This might happen under those two circumstances : – Your filesystem is full > [ make some room or add more storage! ] – You’ve reached the maximum open file > [ increase… Read More »
Getting this error for NewRelic module after PHP update from 5.3 to 5.4? newrelic.so: undefined symbol: php_end_ob_buffer in Unknown on line 0 This mean the module is not compatible with your new PHP version. To resolve this matter, follow these easy steps. Uninstall NewRelic completely : yum remove newrelic-daemon newrelic-sysmond newrelic-php5 newrelic-php5-common Then reinstall : yum… Read More »
Having this error with Zimbra backups? 2013-11-13 11:26:32,788 INFO [qtp1377413258-164433:https://0.0.0.0:7071/service/admin/soap/GetMailQueueInfoRequest] [name=user@domain.tld;mid=15;ip=0.0.0.0;ua=ZimbraWebClient – GC30 (Mac);] SoapEngine – handler exception com.zimbra.common.service.ServiceException: system failure: exception during auth {RemoteManager: mail.domain.tld->zimbra@mail.domain.tld:22} ExceptionId:qtp1377413258-164433:https://0.0.0.0:7071/service/admin/soap/GetMailQueueInfoRequest:1384359992787:2ad736ecb0b90e52 Code:service.FAILURE This might be caused by the Zimbra user cannot establish a loopback SSH connection to the server. Zimbra rely on the network interface IP to establish the… Read More »
Get this error message while trying to start Apache? Invalid command ‘SSLEngine’, perhaps misspelled or defined by a module not included in the server configuration Make sure you are loading mod_SSL by having this statement in your configuration file (such as httpd.conf, ssl.conf, vhost.conf) : LoadModule ssl_module modules/mod_ssl.so
Having issue connecting mobile devices to your new Exchange 2013 server and get “unable to verify account information” error message? Well there is several possible causes, however I find out that Windows Authentication is disabled by default in IIS and is the root cause if the issue with Exchange 2013. First, make sure the external… Read More »