In this example I will back up the Firepower Management Center. All policies and rules are configured and sent via the FMC so backing up the configuration will mean that sensors can be restored via the FMC – if one ever crashes. Alternatively the sensors will continue to work if there is a problem Read More…
Restart VCSA 6.5 Services via CLI Commands
First of all you will need to connect to the VSCA CLI by SSH. Then type shell on the command line: Command> shell To list all services and their state: # service-control –status –all Example output: To start a service: # service-control –start –{service-name} In this example I am starting the vpxd service Read More…
SMB Signing Disabled
Problem On a Nessus PCI Scan SMB Signing Disabled was flagged up as a vulnerability. Nessus Output Description Signing is not required on the remote SMB server. An unauthenticated, remote attacker can exploit this to conduct man-in-the-middle attacks against the SMB server. Solution Enforce message signing in the host's configuration. On Windows, this is Read More…
New Install of Squid Only Listening on IPv6
Problem I installed Squid 3.5.20 on a fresh copy of CentOS 7 but the web proxy was not working when I pointed a browser to it. Troubleshooting I could telnet locally to port 3128 but when I tried from another device on the network I was unable to connect, despite opening the port on Read More…
Nessus Scan Showing SSLv3 on NS Client
Problem During a Nessus scan of a network it was showing lots of insecurities with an NSClient configuarion on a windows machine we were monitoring via Nagios. OS: Windows 2016 NSClient: 0.3.x Nagios: 4.0.7 Looking at one particular issue (SSLv2 and SSLv3) showing on the report: Nessus Output: The remote service accepts connections encrypted Read More…
Zerto: Disk Resized: Volume Resized for VMs
Problem: Zerto job started failing with error Needs configuration. Reason: Disk Resized: Volume resized for vms: {VMNAME} Resolution: It appears the VM had its disk increased. I tried to force sync but that did not work so the following steps were taken. Edit VPG –> VMs > {Remove desired VM from protection} -> {Select do Read More…
Telnet from Cisco UCS
Problem: Ciscco UCS was not backing up the configuration via SFTP. I wanted to check I could connect to the backup server from the UCS on port 22 (SSH) Resolution: Execute the following commands using your desired SSH Client. I have used Putty in this example. 1) SSH to the Cisco UCS and enter Read More…
Transfer Failed: The OVF Descriptor is Not Available
Problem: I was trying to upload vRealize Log Insight 4.5.0 OVA via a vCenter Server Appliance 6.5 and was presented with the following error: Transfer failed: The OVF descriptor is not available. Possible fixes: Try checking the MD5 Sum Resolution: I simply re-downloaded the OVA again from the VMware website and it deployed successfully this Read More…
Partially Powered Off in vCloud Director
What does Partially Powered Off mean and do you get charged when the VM is in this state? When you shut down the guest OS from within a VM you may see a Partially Powered Off message like below: In the above sceenshot the command shutdown -h now was used on a CentOS Read More…
Backing Up Cisco UCS
Pre-requisites: You will need an FTP, TFTP, SCP or SFTP target. In this example I have created an SFTP destination on a CentOS 7 server. To schedule a backup of a Cisco UCS configuration simply log into the UCS Manager: Select Admin on the left hand side frame -> Policy Backup & Export -> Fill Read More…
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