Sometimes Ironport Email Security Appliance (ESA) will generate an application fault alert with minimal or totally useless information for us. Most of the time this alert can only be explained by TAC engineer. One of this app faults may look similar to the following: An application fault occurred: (‘egg/quarantine_smtp.py send_xmetadata|592’, “<type …
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User’s dial-in permissions during authentication or query can be used to set network access permission to be explicitly allowed or denied. This can be used as a simple way to distinguish between user and service accounts when it comes to network access privileges. Cisco ACS has this identification process handled with a simple …
BIG-IP LTM was configured to send email alerts when node or pool member was down. All was working fine until one day I had to configure Remote High-Speed Log (HSL) destination for SPLUNK. HSL worked as expected but node up/down email alerts stopped working. Since I do not get alerts every day it took …
Recently I had to upgrade the code on remote Cisco ASA pair in order to resolve a bug in FirePOWER module. ASA was 100% functional and fully operational. I’ve copied the code and prepared to reload the standby unit. When I’ve executed reload command nothing happened. I thought it was …
Today I came across a very annoying issue of not being able to reach inside interface of Cisco ASA over Site-to-Site VPN or Anyconnect VPN client. Connectivity to the internal networks was ok. I was able to connect and manage it from inside host. VPN subnet was part of the …