Linux - TCP listener daemon with tcpserver
To configure passive checks in Nagios/icinga I use a tcp listener daemon that launches a script (See Nagios – Using passive checks without agent)
Tried
Linux - cannot found / missing inetd.conf
Trying to configure a new inetd service needed for my Icinga (see Linux – Create custom inetd service), but i have not been able to find
F5 BIGIP - Send logs to custom syslog file
For debugging purposes (or to simply to organize logs as you prefer) it would be interesting to send certain syslog messages to a custom file
Linux - Create multiboot CD combining multiple ISO images
This post shows the steps to create a multiboot cd with multiple Linux distributions or tools.
For example, I created a recovery / disaster case cd
F5 BIGIP - Bug when using datagroups in LTM policies
Datagroups can be used in LTM policies to, for example, filter connections based on the client IP address (at least in my BIG-IP v13.0.
Rasbperry - NO-IP configuration to be ran at boot time
If you need to update automatically a DNS entry with your public IP address (for example, to allow remote access to your home Raspberry or
Security - Convert PFX to PEM using Windows or Linux
For certain application, a job partner asked me to send him certain certificate with private key in PEM format. Normally I’m using PFX format,
F5 BIGIP - Modify URI path using local traffic policy
Im using my F5 BIGIP (v13) as reverse proxy to publish some websites by using local traffic policies. But i need to perform a URL
F5 BIG-IP – Rollback tmsh commands
Today a very short and simple post to learn how to rollback configurations performed via tmsh.
After executing some commands, if finally we need to
F5 BIG-IP – Apply SNAT to client subnet or IP
In certain scenarios it can be interesting or necessary to apply SNAT only to certain client IPs when accesing a virtual server to f.e.
Exchange - Setting automatic completion time for Mailbox Move Request
When performing mailbox migrations using the New-MoveRequest, the movement is performed online while the user is using the mailbox without suffering outage until the end.
F5 BIG-IP – Useful SNMP oids to monitor
I have collected some of the most interesting OIDs (in my scenario im using LTM and APM modules) from the F5 MIBS:
OIDs – System Data
F5 BIG-IP - Automate backup of configuration files
I have recently installed and configured my 2 node F5 BIG-IP cluster as load-balancer and SSL-VPN portal. I have been ocasionally performing configuration backups, but
Linux - Running top command remotely (SSH)
Maybe you have tried to execute the top command to monitor processes on a remote host.
Error remotely – Run it in batch mode
If so,
Exchange - Mailbox folders permissions to other users
A user asked me the way to grant permissions to other users to access to some of his mailbox folders. And for certain folder only