similar to: Protocol of checksums generated with -c option?

Dear all, I've only just joined this list, but I can't find any mention of this idea anywhere else, so I thought I'd just post here before getting too deep into programming and possibly reinventing the wheel. Here at Aber, we have around 30 unix and linux servers doing core services. Each one is maintaining its own logfiles and, for various reasons, we want to keep these on the

When --checksum is used they're calculated in both ends to see if the file should be transfered. This is of course not necessary if the file doesn't exist in the destination. However, the checksum is still calculated by the sender, which is often a very large overhead. Would it be possible to avoid it?

Hi, what does Centos 7 do with UPD packets having invalid checksums? Are such packets inevitably dropped? Does a network card drop them when it does checksum verification in hardware even before the packets go anywhere? In general, if someone were to send me UPD packets with invalid checksums over the internet, how far would such packets get? In particular, how likely it is that SRTP

On Sunday, January 26, 2020 3:58:31 PM CET Pete Biggs wrote: > > what does Centos 7 do with UPD packets having invalid checksums? > > By default I assume they are just dropped - that's what should happen. Hm that's what thought. > > Are such packets inevitably dropped? > > Applications can specifically disable checksum checking for the kernel > network stack

We have a Zenoss server in our main office monitoring (among many other things) an Apache server in a remote network, with a Tinc link between the two networks. The monitoring simply involves making an HTTP request to a URL once every 5 minutes and confirming that a response page comes back. Most of the requests to this particular web server succeed (and similar requests to other web servers

Hi all ! I am currently trying to find a smart way to long-term-backup my data. I currently do link-dest-updates to an external hdd. However, I am concerned about data corruption in the backup or the original, i.e. corruption of the data inside the files. Thus i am wondering if there is a way to check the integrity of the backups on the external disk. i.e. to avoid data degradation for

Hi everyone! I played around with rsync sources a little and wrote a small patch that computes the checksums from parts of the files only. I'm just writing to ask if the rsync developers would have any interest in the sort of functionality described below. If you do, I'm willing to work with you to produce a cleaned up patch for git. For background: This started as a way to satisfy an

On 02/09/2017 01:11 PM, Leonard den Ottolander wrote: > On Thu, 2017-02-09 at 12:58 -0600, Johnny Hughes wrote: >> At the time of extraction, the <name>.metadata file is created (again, >> not by us, but by the Red Hat team that distributes source), and all the >> non-text sha1sums are in there as well as all the text sources. > > Aha, <name>.metadata, well,

Hi, This is a newbie type'o'question so I'm most probably talking about something I know nothing about ;) Would it be possible to archive files on a removable drive, save the checksums for the archived files, and later compare existing files against the saved checksums without plugging in the removable drive? I imagine in theory this would allow for an easy incremental-backup-to-CD

On Mon, Feb 27, 2023 at 6:41?PM Richard W.M. Jones <rjones at redhat.com> wrote: > > On Mon, Feb 27, 2023 at 04:24:33PM +0200, Nir Soffer wrote: > > On Mon, Feb 27, 2023 at 3:56?PM Richard W.M. Jones <rjones at redhat.com> wrote: > > > > > > > > > https://github.com/kubevirt/containerized-data-importer/issues/1520 > > > > > > Hi

I apologize if this has already been discussed before, but as of yet I have been unable to find any info on the topic. I have a very simple (and common) disk based backup system using rsync, hard links, and a little bit of perl to glue it together. Remote machines are backed up regularly using hardlinks across each snapshot to reduce disk usage. Recently I learned that rsync does a

Hello John, On Thu, 2017-02-09 at 16:33 +0000, John Hodrien wrote: > On Thu, 9 Feb 2017, Leonard den Ottolander wrote: > > > How about my request for checksums in the git repo? > > What checksums would you actually want in git? SRPMS are signed which allows the integrity of the contents to be checked. Such an integrity check is missing from the git repo. Either a checksum

https://github.com/kubevirt/containerized-data-importer/issues/1520 Hi Eric, We had a question from the Kubevirt team related to the above issue. The question is roughly if it's possible to calculate the checksum of an image as an nbdkit filter and/or in the qemu block layer. Supplemental #1: could qemu-img convert calculate a checksum as it goes along? Supplemental #2: could we detect

On 02/09/2017 12:53 PM, Johnny Hughes wrote: > On 02/09/2017 12:50 PM, Leonard den Ottolander wrote: >> Hello John, >> >> On Thu, 2017-02-09 at 16:33 +0000, John Hodrien wrote: >>> On Thu, 9 Feb 2017, Leonard den Ottolander wrote: >>> >>>> How about my request for checksums in the git repo? >>> >>> What checksums would you

Hello, I have a weird issue with rsync randomly marking some files as having a different checksum (see sample outputs below - run one after another). You would think it is some kind of corruption / io problem with the files but it doesn't seem so - I have copied files around, changes source to different machines, counted md5s manually 100s of times - always the same. All files except

Hello Johnny, On Thu, 2017-02-09 at 09:07 -0600, Johnny Hughes wrote: > Yes .. that content will be republished. It was an accident. How about my request for checksums in the git repo? Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research

Hello, I've got a problem to find an effective calculation. There are x,y data and I want to build classes for the x values. For each class then I want to calculate the median, N%-Quantiles, outliers, etc. for the corresponding y values and store all in a vector or matrix. Is there a direct possibility to do this without storing to much temporary data? Thank's in advance, Michael

Hi, when using RSync for mirroring, the checksums of a file are calculated for each transfer. But that causes a lot of CPU/IO load on the server machine and degrades throughput even if there's plenty of network bandwidth. So I want to propose a pre-calculating feature for checksums. The easiest way would be to add a CLI-option like '--pre-checksum' to RSync. That way RSync would just

Hi, this small series moves the OCaml Checksums module from virt-builder to mllib, adding more features to use it also for v2v. Thanks, Pino Toscano (4): mllib: move Checksums from builder mllib, builder: add and use Checksums.of_string mllib: add SHA1 support in Checksums v2v: -i ova: use Checksums builder/Makefile.am | 2 -- builder/builder.ml | 6 +++-

Pasi, in http://readlist.com/lists/lists.xensource.com/xen-users/10/50495.html you mention a netback fix without identifying which one. In going over the changes as well as looking at the code, I can''t spot anything related, or see how non-TCP, non-UDP packets could pass checksum_setup(), and hence I don''t really understand how this problem can be considered fixed (for, in the