Imac mid 2010 Windows 10 black screen
Posted onThe trick is remove the file atikmdiag.sys located in C:\Windows\System32\Drivers
Author: luzem
Ovirt Bad volume specification after update
Posted onI try to maintain my systems updated, It generates problems but unmaintained machines have the incredible ability to create bigger problems. At Calidade Systems for internal infrastructure we choose Ovirt, It’s really easy to add hardware, storage and every month has new improvements, obviously it not a perfect solution, but the perfect virtualization environment does […]
Moving a Virtual Machine from VirtualBox to Proxmox
Posted onNowadays virtualization is a must but sometimes we found virtual machines runing in several plataforms. Having all your virtual machines in one platform helps you to centralize all the administration and reduces maintenance time cost. In this case we have a Centos 7 pet virtual machine and we need to migrate from VirtualBox 6 to […]
Windows 2019 Server Can not access to a samba share
Posted onWindows Server 2019 comes with a secure default config, in this case one Windows 2019 needs access to a samba public share and gives error 0x80004005 when we try to reach the shared folder. Solution: Open Regedit navigate to HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\ and set value to 1 in key AllowInsecureGuestAuth
Configure Proxmox 5.2 mail notifications using a relay mail account
Posted onProxmox is a good solution for small bussines, you will get an hypervisor with scheduled backups. In some costumers we found problems receiving backup notifications, because isp network is blacklisted, proxmox server domain name is not well configured, trafict through port 25 is filtered and hundreds of small problems In this cases the faster solution […]
Error 80070035 accessing to a windows 7 shared folder from a windows 10
Posted onToday we get a lot of calls complaining about that remote share folders aren’t working in some windows 7 computers. The cause was the update KB4480970 it breaks SMBv2 protocol The only solution in uninstall the KB4480970 update and restar computer
Start a Percona 5.7 cluster after a controlled shutdown
Posted onIn each node check the content of /var/lib/mysql/grastate.dat version: 2.1 uuid: 9a50c4ec-4332-11e8-8b88-77564bb9f22a seqno: 45 safe_to_bootstrap: 0 select the node with the highest value in seqno and edit the value of safe_to_bootstrap to 1 should be like these version: 2.1 uuid: 9a50c4ec-4332-11e8-8b88-77564bb9f22a seqno: 45 safe_to_bootstrap: 1 in these node run systemctl start mysql@bootstrap.service in the other […]
Ansible print hostvariables
Posted onSometimes we need to check hostvars in our ansible hosts. a quick way to get this done should be
configuring XenServer 7.x mail notifications through external mail server
Posted onGenerally Small and Medium Business doesn’t have a own mail server in office. If we want to receive notifications we can configure Xenserver to use an existing email account to relay messages. #1 Open a ssh session in desired Xenserver install #2 Edit your ssmtp file #3 Your ssmtp.conf file should have these values #4 […]
Centos 7.4 Samba shares not working in printer
Posted onUpdates are good, they improve our system security and add more feature to our software. In this case after updating a Centos 7.3 installation to 7.4 suddenly a customer old printer cant store scan jobs in a samba share. After enable verbose log in samba configuring option we saw some entries like unfortunately our printer […]
