netsh interface ipv4 show subinterface
netsh interface ipv4 set subinterface “Local Area Connection” mtu=1400 store=persistent
netsh interface ipv4 show subinterface
netsh interface ipv4 set subinterface “Local Area Connection” mtu=1400 store=persistent
Original: Regenerate the SSL certificate in a Zimbra single server environment.
This fix is for Standalone servers which use self-signed certificates on Zimbra 8.5+ which have following error:
ERROR: zclient.IO_ERROR (invoke sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target, server: localhost) (cause: javax.net.ssl.SSLHandshakeException sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.ce
rtpath.SunCertPathBuilderException: unable to find valid certification path to requested target)
1. Create and deploy selsigned certificate – Run under root account:
[root@mail zimbra]# /opt/zimbra/bin/zmcertmgr createca -new
[root@mail zimbra]# /opt/zimbra/bin/zmcertmgr deployca
[root@mail zimbra]# /opt/zimbra/bin/zmcertmgr createcrt -new -days 365
[root@mail zimbra]# /opt/zimbra/bin/zmcertmgr deploycrt self
2. Verify Deployed certificate:
[root@mail zimbra]# /opt/zimbra/bin/zmcertmgr viewdeployedcrt
3. Restart Zimbra – run under zimbra account:
[root@mail zimbra]# su – zimbra
[zimbra@mail ~]$ zmcontrol restart
1. Run cmd under Administrative account
2. Run sfc /scannow
3. Run DISM /Online /Cleanup-Image /RestoreHealth
Zimbra:
Get all distribution lists
# zmprov gadl
Print recipients addresses for a specific distribution list
# zmprov gdl distributiongroup@host.com | grep zimbraMailForwardingAddress:
zimbra ERROR: zclient.IO_ERROR (invoke sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target, server: localhost) (cause: javax.net.ssl.SSLHandshakeException sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
This error is very common after installing a new certificate in Zimbra, that even restarting the services not valid for use of some mostly command-line utilities. To troubleshoot, perform the following commands as root:
/opt/zimbra/bin/zmcertmgr deploycrt self
/opt/zimbra/bin/zmcertmgr deployca
Now run the following command as Zimbra user:
zmupdateauthkeys
du -sh *
Getting file error in Virtual Box or VMWare?
Fix vmdk file:
vmware-vdiskmanager -R <your-file-name>.vmdk
Start:
$ sudo systemctl start firewalld.service
Stop:
$ sudo systemctl stop firewalld.service
Install NTPD
[root@localhost ~]# yum -y install ntp
Check and adjust configuration if needed
[root@localhost ~]# vi /etc/ntp.conf
Start NTPD
[root@localhost ~]# systemctl start ntpd
Enable Start at Boot Time
[root@localhost ~]# systemctl enable ntpd
Check search criteria:
Get-mailbox | search-mailbox –searchquery “From: address@fromdomain.com” –Logonly –Targetmailbox administrator –Targetfolder Inbox
Delete emails
Get-mailbox | search-mailbox –searchquery “From: address@fromdomain.com” –DeleteContent