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Questions tagged [sha256]

The tag has no usage guidance.

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Finding the location of the pulled images from docker hub in local system

We want to know the exact location of the "docker pull image" in our system. when we pull an image from the docker hub, it gives us "sha256: numbers" which is a cryptographic hash algorithm. Please ...
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3answers
111 views

change many file names to hash (sha256)?

I have a bunch of video files where all the file names are un-useful gibberish. 1) Is there an easy command to change the names of all the files in a folder to a hash, like (sha256).mp4? I don't want ...
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0answers
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Ubuntu 18.04 Server sha256sum

I'm downloading an ISO image of Ubuntu 18.04 server AMD 64 bits from http://releases.ubuntu.com/bionic/ On that page two ISO images are found: http://releases.ubuntu.com/bionic/ubuntu-18.04.1.0-live-...
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1answer
170 views

SHASUMS AND grep in verifying Ubuntu download

I'm trying to better understand the use of "SHA256SUMS" and "grep." The Ubuntu verify and authenticate tutorial uses the following term: "sha256sum -c SHA256SUMS 2>&1 | grep OK" to verify the ...
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1answer
545 views

My Ubuntu SHA256SUM doesn't match no matter release or mirror… what am I doing wrong?

As titled: Ubuntu .iso files and their respective sha256 hashes aren't matching for me. I have tried downloading four different release .iso (from four different official mirrors) and have not been ...
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1answer
80 views

Same HASH value, different files - empty strings

Edited question for posterity: The reason my resulting hash values were the same is that the I'm computing checksums of two .iso files which contain "empty strings." I attempted to verify two ...
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1answer
207 views

Ubuntu 16.04.5 sha256 signing mismatch questions

It looks to me like the current Ubuntu 16.04.5 .iso file and its gpg hash aren't matching on releases.ubuntu.com: I DL'd /16.04.5/ubuntu-16.04.5-desktop-amd64.iso (http://releases.ubuntu.com/xenial ...
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0answers
1k views

Winetricks sha256sum mismatch! Rename “x” and try again

this is my first post so sorry for any tardiness. I am trying to install this: Tree of Savior - Steam Which requires Winetricks in the list of dependencies. However when downloading the Steam ...
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3answers
228 views

unable to generate the hash for netbeans 8.2

I am unable to generate the hash for the netbeans 8.2 for Ubuntu 16.04 after I write the command: ravi@Dell:~/Downloads$ sha256 netbeans-8.2-linux.sh mlockall: Cannot allocate memory Warning: ...
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0answers
434 views

Error: Can't Open Signed Data 'SHA256SUM'

I am trying to authenticate Ubuntu 16.06.3 SHA256SUM. While verifying gpg file I get the following error: "gpg: can't open signed data 'SHA256SUMS' gpg: can't hash datafile: file open error" I get ...
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2answers
112 views

sha256sum mismatch in cloud images

Is anyone having issues with the 6/20 build? http://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-root.tar.gz We have an automated process which downloads images. First the ...
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1answer
983 views

Is it possible to find the SHA256 hash of a webpage?

How can I find the SHA256 hash of a webpage using Linux tools (CURL, etc.)?
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1answer
5k views

How to check the md5sum and sha256sum of a directory (an entire folder)? [duplicate]

In the terminal it's easy to find the md5sum of a single file, but how about for an entire directory? And would the same apply to sha256sum?
1
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1answer
273 views

Protect root-owned script against tampering and run unattended w/ sudoers' NOPASSWD

Using /etc/sudoers I gave a non-root user (anyuser below) permission to sudo-execute a root-owned script (test-script below) with the NOPASSWD: tag set. The script's permission octal value is 0550. ...
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2answers
282 views

Can not get correct sha256sum hash for Kubuntu 15.10 DVD

I have downloaded the .iso file for Kubuntu-15.10.iso from the official site. I successfully verified the correct sha256sum hash of 9e5eb424eabfd9b2d193d8c34eca7b48ad944b90c0de0bdcbb638563c14c4d2b I ...
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1answer
562 views

Krusader/dolphin safe to use for sftp without sha256?

I always use Krusader for (s)ftp. The dual pane is a sheer delight, better feel then Nautulis/Files. Version 2.4.0-beta3 Ubuntu 14.04 LTS Recently I got error messages connecting on some updated ...