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Apr
7
asked Start KVM with readonly CD image from libvirt on Debian jessie
Apr
7
comment Windows Implicit Deny Permissions
The default is already "deny". If there is no "allow" rule that matches, the user will not have access.
Feb
23
comment How to keep update Hardware clock when server is syncing time with NTP?
Saving the clock to the hardware clock during suspend/shutdown should be sufficient -- nothing looks at the hardware clock anyway while the system is running. If your server typically resets without being shut down properly, that is something you need to address separately.
Jan
27
comment How to remotely detect windows has completed patch configuration after reboot
I meant as an extension to your answer: when the update starts installing (event 1), it is added to the list, and removed when it reports done (event 4). With some tweaking (failed updates, list reset during reboot?) it should be possible to determine whether there is still an installation going on.
Jan
27
comment How to remotely detect windows has completed patch configuration after reboot
Wouldn't it work to write down the KB IDs of all packages that start installing, and assume completion only when no more updates are in-flight?
Jan
27
comment Why does a raid 10 device need to be initialized?
As you need to read the data anyway, the cost of comparing it is minimal, but it can show you that one of the disks has developed an otherwise undetected problem (e.g. bad RAM in the drive's own cache). The administrator would then break up the array, manually look at the differences and choose which drive to replace.
Jan
27
answered Why does a raid 10 device need to be initialized?
Sep
23
comment Are VLan's used to split my switch into segments?
There are also commercial offers for combining the three uplinks by creating tunnels and then balancing the load, which would give higher peak throughput and better handling of link failures.
Aug
5
answered 3COM Switch dropping broadband
Jul
29
comment Is SNMP still used widely as of 2015?
Yes, the sequence diagrams show the different layers interacting in the processing of a single packet. With v3, a lot of things change, but TBH I've seen only few people use v3 so far.
Jul
29
comment Is SNMP still used widely as of 2015?
Storing the MIB in the user interface is not a huge drawback, because the UI needs additional information for presentation anyway, but it saves considerable amounts of space on embedded systems -- and the stateless protocol is a huge bonus too.
Mar
12
comment Why does strace return so many execve calls with ENOENT return code?
Also, there is no point in doing checks first. You would just generate one extra system call.
Dec
12
comment IPsec transport mode and MTU
Yes, it works fine. The router does NAT regularly, then wraps IPsec around it
Dec
12
comment IPsec transport mode and MTU
No, I'm using transport mode directly, without another tunnel protocol. I can see that in principle this should lead to two encrypted fragments (which is suboptimal but would work), however I see that the packet is not sent at all.
Dec
11
revised IPsec transport mode and MTU
added 180 characters in body
Dec
11
asked IPsec transport mode and MTU
Dec
11
comment Increasing the size of a 3ware 9650SE RAID5
Also, at that size, RAID-5 is a ticking time bomb IMO. With a 4-port controller, you don't have too many other options, but your ability to rebuild after a failure depends on none of the disks having even a single error.
Dec
11
comment Increasing the size of a 3ware 9650SE RAID5
IIRC the new drive becomes a hot spare automatically, which would mark it as "in use". Not an answer because I can't verify.
Dec
5
awarded  Popular Question
Dec
5
comment Linux - Is there a way to prevent/protect a file from being deleted even by root?
@psusi, it appears that I am very old. 2.0.40 still had it.