Linux Questions

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I installed Slackware 64 live on HP ELITEBOOK G3 840 and the graphics of system is messed up bc it keeps blinking and a black screen flickers on and off. I have Intel graphics and use elilo in edition to kde. Here are pics of my computer hardware as told by Linux. I think it may be something with the Linux kernel and what not for some reason this is a problem in slackware 15 anyway s I edited elilo and put nomodeset but that causes the graphics to stop but when I click startx it doesn't start so I ugh posted the respective error logs of xorg and idk what to do.

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Hi, I get this ACPI error message at boot.
boot-error
When a high-resolution video or Firefox runs for the first time after the system starts, the program freezes shortly after and must be killed, only after that all programs run normally.
I do not know if it has anything to do with it but when the screensaver is activated the second time, the system hangs up so I leave it inactive.

Code: $ sudo dmidecode -s bios-version
F9a Code: $ sysctl vm.swappiness
vm.swappiness = 60 Code: $ free | awk '/^Mem:/{print $2}'
8125104 Code: $ lspci -nn | grep "VGA\|Display"
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Cypress XT [Radeon HD 5870] [1002:6898] Code: $ sudo cat /var/log/boot.log | tail -n 3
        Starting ospd-openvas.service - OSPd Wrapper for the OpenVAS Scanner (ospd-openvas)...
[FAILED] Failed to start logrotate.service - Rotate log files.
See 'systemctl status logrotate.service' for details. Code: $ cat /etc/default/grub | awk '/GRUB_CMDLINE_LINUX_DEFAULT/'
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" thanks for help

My next issue in my ongoing series of sendmail issues ...

I am getting a DKIM failure. I'm using mutt 2.1.5 on Slackware 15.0 (kernel 5.15.94). My muttrc file for this message is:
Code: set from="Mark Foley Jr <maillist@columbus8.org>"
set use_from=yes

set envelope_from_address="Mark Foley Jr <maillist@mercureytech.com>"
set use_envelope_from=yes The mutt command is:
Code: # REPLYTO=mfoley@novatec-inc.com mutt -F $MAILDIR/muttrc -s "test from mfoley@novatec-inc.com to test@columbus8.org, test dkim" -b mfoley@novatec-inc.com maillist@columbus8.org < $emailBody The message header is:
Code: From maillist@mercureytech.com  Sun May 28 09:30:15 2023
Return-Path: <maillist@mercureytech.com>
Received: from mercureytech.com (rrcs-24-142-169-11.mercureytech.com [24.142.169.11])
        by novatec-inc.com (8.15.2/8.15.2) with ESMTPS id 34SDUD7K005101
        (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL)
        for <mfoley@novatec-inc.com>; Sun, 28 May 2023 09:30:13 -0400
Authentication-Results: novatec-inc.com;
        dkim=fail reason="signature verification failed" (1024-bit key) header.d=columbus8.org header.i=@columbus8.org header.b=EKiPto2I
Received: from mail.mercureytech.com (localhost [127.0.0.1])
        by mercureytech.com (8.17.1/8.15.2) with ESMTPS id 34SDU75F026920
        (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO);
        Sun, 28 May 2023 09:30:10 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=columbus8.org;
        s=cols8; t=1685280612;
        bh=cgL/qJeMlfcxxtLnsbaiXnBlYcBb4kiU7HweNYpGn/E=;
        h=Date:From:To:Subject:Reply-To;
        b=EKiPto2I9DATBoW1rD37XigGeQpHRweajMMjkuULSG0pzRe/cfM5h5qIoCvi/NVtL
        zJBkbwkjpvuud/ehiye7CNoP0c5Bfi6syuANxsmyNxxElbq1LBMxe1x/Kx2phccDo/
        py1l1DjB4cP1gnCe5AZWRG4mskTeyAV6DjZCPlus=
Received: (from daemon@localhost)
        by mail.mercureytech.com (8.17.1/8.17.1/Submit) id 34SDU6tN026915;
        Sun, 28 May 2023 09:30:06 -0400
Date: Sun, 28 May 2023 09:30:06 -0400
From: Mark Foley Jr <maillist@mercureytech.com>
To: maillist@columbus8.org
Subject: test from mfoley@novatec-inc.com to test@columbus8.org, test dkim
Message-ID: <ZHNXXoAFVthKyQpw@mail.mercureytech.com>
Reply-To: Mark Foley <mfoley@novatec-inc.com> Why is the DKIM failing? The sending server does have a DKIM for columbus8.org:
Code: $ dig +short TXT cols8._domainkey.columbus8.org
"v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDN2m/RbPMkfuHIKLEvJe3ESsAL..." but why is it even trying to validate columbus8.org's DKIM in the first place? The envelope header From and the From: address are both maillist@mercureytech.com. Should it not be validating with mercureytech.com's DKIM?

And even if it's legit to use the columbus8.org DKIM, what would cause "signature verification failure"?

I have 2 HP Laptops, new laptop has a 17" display and the thought crossed
my brain...could I use an old image (created by RescueZilla) from my older laptop on my new laptop? Would it be as easy as running RescueZilla on the new machine? Using the restore function.

Hi,

I just built snapper package which have a configuration file in /etc/conf.d/snapper.
According slackware documentation i added the following content in my doinst.sh:
Code: config() {
  NEW="$1"
  OLD="$(dirname $NEW)/$(basename $NEW .new)"
  # If there's no config file by that name, mv it over:
  if [ ! -r $OLD ]; then
    mv $NEW $OLD
  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
    # toss the redundant copy
    rm $NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}

config etc/conf.d/snapper.new when I run "slackpkg install snapper", I see this output:

Code: [1/1]  Package: snapper-0.10.3-x86_64-1_Sdom.tgz
        Linking /home/domenico/Slackdom/x86_64/snapper/snapper-0.10.3-x86_64-1_Sdom.tgz
        Linking /home/domenico/Slackdom/x86_64/snapper/snapper-0.10.3-x86_64-1_Sdom.tgz.asc
[1/1]  Package snapper-0.10.3-x86_64-1_Sdom.tgz is already in cache - not downloading
        Installing [Slackdom]:snapper-0.10.3-x86_64-1_Sdom...
snapper-0.10.3-x86_64-1_Sdom: Snapper is a tool for Linux file system snapshot management ......................................................................... [ 3.8M]
cat: etc/conf.d/snapper.new: No such file or directory
Searching for NEW configuration files...
Some packages had new configuration files installed (1 new files):

/etc/slackpkg/slackpkgplus.conf.new

What do you want (K/O/R/P)?

        (K)eep the old files and consider .new files later

        (O)verwrite all old files with the new ones. The
          old files will be stored with the suffix .orig

        (R)emove all .new files

        (P)rompt K, O, R selection for every single file
K As you can see, snapper.new cannot be found and it is right, but
must it work in this way ? or am i wronging anything?
Another point which is not clear for me, after the installation,
if I edit "/etc/conf.d/snapper" changing its content then
its md5sum will change, thus, if I run "slackpkg reinstall snapper"
i expect to find /etc/conf.d/snapper and /etc/conf.d/snapper.new
but I only find /etc/conf.d/snapper with its original content losing the
previous changes.
What am i wronging?

Regards

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The purpose of the code:

The following page code is intended to upload an image file (from the Windows desktop) to the Linux 8 server where the Tomcat 10 server is running.

My application name: TESTS
I have these libraries:
/u01/tomcat/base/middleware/tomcat10/webapps/TESTS/WEB-INF/lib;
commons-fileupload-1.5-test-sources.jar
commons-fileupload-1.5-tests.jar
commons-fileupload-1.5-sources.jar
commons-fileupload-1.5-javadoc.jar
commons-fileupload-1.5.jar

I have in my Tomcat 10 library:
/u01/tomcat/base/middleware/tomcat10/lib:
-rw-r--r--. 1 tomcat tomcat 365905 Apr 25 12:16 servlet-api.jar

The code:

<%@ page import="org.apache.commons.fileupload.*" %>
<%@ page import="org.apache.commons.fileupload.disk.*" %>
<%@ page import="org.apache.commons.fileupload.servlet.*" %>
<%@ page import="java.io.*" %>
<%@ page import="java.util.*" %>
<%@ page import="jakarta.servlet.*" %>
<%@ page import="jakarta.servlet.http.*" %>
<%@ page import="jakarta.sql.*" %>
<%@ page import="java.sql.*" %>
<%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %>
<%@ page import="org.apache.commons.fileupload.FileItemFactory" %>
<%
// Set the upload directory
String uploadDir = "/tmp/";
// Create a factory for disk-based file items
FileItemFactory factory = new DiskFileItemFactory();
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// Parse the request
List<FileItem> items = upload.parseRequest(request);
// Process the uploaded items
Iterator<FileItem> iter = items.iterator();
while (iter.hasNext()) {
FileItem item = iter.next();
// If the item is a file, save it to the upload directory
if (!item.isFormField()) {
String fileName = new File(item.getName()).getName();
String filePath = uploadDir + fileName;
File uploadedFile = new File(filePath);
item.write(uploadedFile);
}
}
%>
<html>
<head>
<title>File Upload Example</title>
</head>
<body>
<h1>File Upload Example</h1>
<form method="post" enctype="multipart/form-data">
<input type="file" name="file" />
<br />
<input type="submit" value="Upload" />
</form>
</body>
</html>

The error I get:

org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: [24] in the jsp file: [/index.jsp]
The type javax.servlet.http.HttpServletRequest cannot be resolved. It is indirectly referenced from required type org.apache.commons.fileupload.servlet.ServletFileUpload
21: ServletFileUpload upload = new ServletFileUpload(factory);
22:
23: // Parse the request
24: List<FileItem> items = upload.parseRequest(request);
25:
26: // Process the uploaded items
27: Iterator<FileItem> iter = items.iterator();

It looks like:

https://www.linuxquestions.org/quest...-a-4175710078/
But this is a different case.

Does someone has any idea what the problem can be ?


Kind Regards

I am working with CentOS 7, OEL 7, OEL 8.
Is there a way to encrypt ascii files (like a bash script) that contain code ? Is there also a way to decrypt it if necessary ?

Kind Regards.

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/usr/sbin/pipewire-enable.sh does not provide /etc/rc.d script. It instead gives xdg autostart file. As a dwm user, how am I supposed to use it?

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I am trying to run Diablo II resurrected using lutris (which was installed from sbopkg) and have had
some success but have run into a problem with vulkan. Now slackware 15 64 bit multilib has vulkan-1.2.176.1 along with it's 32 bit compatibility package but i have only managed to build slackware
current's vulkan-sdk-1.3.204-x86_64-1.txz and not it's 32 bit compatibility package. Now my question
is how would i do that in this case. And yes the current 1.3.204 does get diablo II res. to work but
i would like to see if the compatibility package would help in this case and also for other games as
well. It seems only recently that the lutris logs started mentioning the need for a more recent
version of vulkan (1.3) and it seems to be effective in this case, granted said game tends
to break compatibility with lutris sometimes (possibly because it is patched frequently) but there
you have it.

I have an old laptop. Using rsync, I back up everything I have that is important to me from my current laptop to my old laptop. I use the old laptop like a usb stick.

This year I will leave China and go back to England. I won't take the old laptop with me, it's too old.

I want to completely erase the ssd, write zeroes over everything. I want to wipe out everything.

How can I do that?

Not that I have any great secrets, but as a matter of principle.

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My old laptop normally runs Slackware15/64, but it is a shared machine that also has a Windows 10 partition. I normally run the following script to set the hardware time and store it:

/etc/rc.d/rc.ntpd stop && ntpdate pool.ntp.org && hwclock --systohc --localtime && /etc/rc.d/rc.ntpd start

If the machine is there booted to windows, it will display the proper time, but returning to Slackware the time will have to be reset. What should I change to eliminate the discrepancy?

Thank you.

Good day, my name is Gerard and I am new to Linux. I hope to write LPIC-1 as soon as possible and I will need all the support I can get. Can anyone tell me which Linux distribution I should install to get started. Thanks

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