In normal use of tcpdump without any parameter, does it guarantee?
tcpdump -i eth0 -w file.pcap
In using tcpdump rotating by time with -G parameter, does it guarantee?
tcpdump -i eth0 -w file.pcap -G 60
In both case, throughput is apprx 1Gbit
Coming from a development background i'm used to automated (unit) testing before stuff goes live.Now i'd like to use the same approach to (new) linux (and some windows) servers and networkdevices.
I want to be able to define tests / conditions which these systems should pass before they can go live, or run the tests against live hosts to check if they still comply with our standards.
Tests I'd like to run go beyond networkscanning. For instance:
- I want to check if SSH is enabled, but no root login is allowed and keybased logins are enforced.
- On a printer I want to check if certain SNMP communities are set.
- On a linux host i'd want to check the ntp settings
- I'd want to be able to define custom check in some specific cases
Do you know if such an automated system exist, which one would meet my requirements best? Or should I built on an existing unittest framework?
What's the benefit of performing regular database integrity checks? Can't we just perform it when there's a problem?
We have a spare Integrity blade (2x Tukwila quad-core + 16Gb RAM) laying around which I would like to use has a Virtual Host for a couple of Linux VMs. I am having some concerns finding the best solutions for our situation (if a solution is possible at all?). Here's what I'm dealing with:
- XEN looks well supported on Itanium, but I'm not sure if I would be able to run x86_64 guests on ia64+XEN.
- I guess KVM would be able to support emulation for x86_64 through qemu, but support for ia64 does not seem to be well supported.
- All guests are going to be RedHat 5.5 based and HAVE to be on x86_64 architecture.
- I don't care about the host's distribution (ideally CentOS or Debian), but I would prefer it not being Red Hat (since I don't want to deal with the trouble of registering only for 1 ia64 licence).
- Red Hat drops support for ia64 and Xen in version 6
- Debian seems well supported on ia64 but I can't seem to find kvm or xen packages for it
- Will CentOS also drop support for ia64 and Xen?
So, to sum up my question, how would you guys go about virtualising x86_64 guests on an Itanium server?