I keep seeing these alerts on both the Mangers we have for our organisation. what are these errors.
==========
Event type: An unexpected exception has occurred
Event description: Unexpected server error.
Error message: Unexpected server error.
Error code: Unexpected server error.
Stack trace: javax.naming.CommunicationException: saccdcip01.sdcorp.global.sandisk.com:636 [Root exception is java.net.UnknownHostException: saccdcip01.sdcorp.global.sandisk.com] at com.sun.jndi.ldap.Connection.<init>(Connection.java:214) at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:136) at com.sun.jndi.ldap.LdapClient.getInstance(LdapClient.java:1600) at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2698) at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:316) at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193) at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:211) at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:154) at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:84) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307) at javax.naming.InitialContext.init(InitialContext.java:242) at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:153) at com.sygate.scm.server.util.ldap.LdapUtils.connect(LdapUtils.java:218) at com.sygate.scm.server.util.ldap.LdapUtils.connect(LdapUtils.java:190) at com.sygate.scm.server.util.ldap.LdapUtils.connectWithSimpleLoginWithSSL(LdapUtils.java:85) at com.sygate.scm.server.util.ldap.LdapUtils.connectWithSimpleLoginForADWithSSL(LdapUtils.java:117) at com.sygate.scm.server.util.ldap.DirectoryAuthenticator.loginAD(DirectoryAuthenticator.java:166) at com.sygate.scm.server.util.ldap.DirectoryAuthenticator.checkDirectoryServer(DirectoryAuthenticator.java:136) at com.sygate.scm.server.util.ldap.DirectoryAuthenticator.isADUserExists(DirectoryAuthenticator.java:89) at com.sygate.scm.server.consolemanager.requesthandler.AuthenticateADUserHandler.handleRequest(AuthenticateADUserHandler.java:46) at com.sygate.scm.server.consolemanager.RequestHandler.handleRequest(RequestHandler.java:358) at com.sygate.scm.
Site: <site name>
Server: <server name>
Date: 11/01/2013 09:30:39
Severity: Error