Host in-addr.arpa. not found: 3(NXDOMAIN)

Hello I am trying to set up a DNS on my virtual machine. When I try host openbsd I get the correct IP but when I try to host 192.168.195.11 I received “Host ..195.168.192. in-addr.arpa. not found: 3(NXDOMAIN)”

Why did this error occur? Initially my host openbsd was outputting an incorrect IP and the same error but after making some changes in my /etc/resolv.conf and /var/named/etc/named.conf I finally got it to work but host 192.168.195.11 fails.

The error is “11.195.168.192. in-addr.arpa. not found: 3(NXDOMAIN)

Any clue to expediate in finishing my project is extremely appreciated.

Here is what I put in my files.

/var/named/etc/named.conf:

zone “cs…” { type master; file “master/cs…”; };

zone “195.168.192.in-addr.arpa” { type master; file “master/192.168.195”; };

/etc/resolv.conf:

search cs.. nameserver 192.168.195.11 nameserver 192.168.195.2 look up file bind

Thank you.

How to fix “no backend found for spell checking” in Kate editor settings?

I have installed Kate editor into my Ubuntu MATE 16.04.6 LTS system as simple as sudo apt-get install kate.

In its Settings → Configure Kate, Editor Component, Editing, Spellcheck tab I see that it does not detect back-end for spell-checking:

No backend found for spell checking Configure - Kate

$   kate Sonnet: No speller backends available! No language dictionaries for the language: "en" 

I have the following packages installed related to spell-check:

$   dpkg -l | grep -iE "dict|spell.*(check|correct)" ii  anthy                                                       9100h-25ubuntu1                                 amd64        input method for Japanese - backend, dictionary and utility ii  anthy-common                                                9100h-25ubuntu1                                 all          input method for Japanese - common files and dictionary ii  aspell                                                      0.60.7~20110707-3build1                         amd64        GNU Aspell spell-checker ii  aspell-en                                                   7.1-0-1.1                                       all          English dictionary for GNU Aspell ii  dictionaries-common                                         1.26.3                                          all          spelling dictionaries - common utilities ii  enchant                                                     1.6.0-10.1build2                                amd64        Wrapper for various spell checker engines (binary programs) ii  geany-plugin-spellcheck                                     1.27+dfsg-2                                     amd64        spellcheck plugin for Geany ii  hunspell-en-ca                                              1:5.1.0-1ubuntu2.2                              all          English (Canada) dictionary for hunspell ii  hunspell-en-gb                                              1:5.1.0-1ubuntu2.2                              all          English (GB) dictionary for hunspell ii  hunspell-en-us                                              20070829-6ubuntu3                               all          English_american dictionary for hunspell ii  hunspell-en-za                                              1:5.1.0-1ubuntu2.2                              all          English (South Africa) dictionary for hunspell ii  hunspell-ru                                                 20120501-1                                      all          Russian dictionary for hunspell ii  iamerican                                                   3.4.00-5                                        all          American English dictionary for ispell (standard version) ii  ienglish-common                                             3.4.00-5                                        all          Common files for British and American ispell dictionaries ii  ispell                                                      3.4.00-5                                        amd64        International Ispell (an interactive spelling corrector) ii  libaspell15:amd64                                           0.60.7~20110707-3build1                         amd64        GNU Aspell spell-checker runtime library ii  libenchant1c2a:amd64                                        1.6.0-10.1build2                                amd64        Wrapper library for various spell checker engines (runtime libs) ii  libgdict-common                                             3.18.0-2                                        all          GNOME Dictionary base library - common files ii  libgtkspell0                                                2.0.16-1.1ubuntu1                               amd64        a spell-checking addon for GTK's TextView widget ii  libgtkspell3-3-0:amd64                                      3.0.7-2                                         amd64        spell-checking addon for GTK+'s TextView widget ii  libhunspell-1.3-0:amd64                                     1.3.3-4ubuntu1                                  amd64        spell checker and morphological analyzer (shared library) ii  libhunspell-dev:amd64                                       1.3.3-4ubuntu1                                  amd64        spell checker and morphological analyzer (development) ii  libjazzy-java                                               0.5.2-1                                         all          spell checker java library ii  libkf5sonnet5-data                                          5.18.0-0ubuntu1                                 all          spell checking library for Qt ii  libkf5sonnetcore5:amd64                                     5.18.0-0ubuntu1                                 amd64        spell checking library for Qt ii  libkf5sonnetui5:amd64                                       5.18.0-0ubuntu1                                 amd64        spell checking library for Qt ii  libmatedict6                                                1.12.0-1                                        amd64        MATE desktop utilities (matedict library) ii  link-grammar-dictionaries-en                                4.7.4-3                                         all          Carnegie Mellon University's link grammar parser (English dictionary) ii  myspell-en-au                                               2.1-5.4                                         all          English_australian dictionary for myspell ii  myspell-en-gb                                               1:5.1.0-1ubuntu2.2                              all          English (GB) dictionary for hunspell - dummy transitional package ii  myspell-en-za                                               1:5.1.0-1ubuntu2.2                              all          English (ZA) dictionary for hunspell - dummy transitional package rc  myspell-ru                                                  0.99g5-20                                       all          Russian dictionary for MySpell ii  python-enchant                                              1.6.6-2                                         all          spellchecking library for Python ii  python3-enchant                                             1.6.6-2                                         all          spellchecking library for Python 3 ii  wamerican                                                   7.1-1                                           all          American English dictionary words for /usr/share/dict ii  wbritish                                                    7.1-1                                           all          British English dictionary words for /usr/share/dict   

How should I fix this?

WiFi Adapter not found after update yesterday

I updated my laptop yesterday and when I started it today, it couldn’t find any WiFi. It doesn’t have any Ethernet port so I can’t do any wired connections. As far as I can see from the history log, the only thing updated that appeared to be related to the network was

wpasupplicant:amd64 (2:2.6-15ubuntu2.3, 2:2.6-15ubuntu2.4)

What can I do to rectify this?

Command not found in Crontab

I am new with Crontab and Linux. I am trying to schedule this following command line instruction in Crontab:

speedtest-cli --csv &>> /home/pi/speedtestLog.txt

I am trying doing it:

*/1 * * * * speedtest-cli --csv >> /home/pi/speedtestLog.txt 2>&1

But I am getting the error appended in the file:

/bin/sh: 1: speedtest-cli: not found

How do I resolve it please?

configure: error: enet not found

I am trying to build 7kaa game on my Ubuntu machine.

To build Makefile.am, I ran ./configure and the tail of the result is

checking for gettext... yes checking for iconv... yes checking for OPENAL... yes checking for SDL... yes checking for ENET... no checking for enet_initialize in -lenet -lws2_32 -lwinmm... no checking for enet_initialize in -lenet... no configure: error: enet not found 

I am wondering what is enet and how to install it? it seems apt does not recognize it.

Even though setting enable_enet to no at here will fix this problem.

enable_enet=no 

I am still curious how to have this feature and what does it do?

WiFi-driver not Found in HP Notebook -15-bs180tx (Ubuntu 19.04)

I am new to Ubuntu/Linux, this is my first ever install. Have installed Ubuntu 19.04 on a new HP notebook. I installed it from USB and dual-boot Windows 10 is there. WiFi is working in windows 10 operating system. But in Ubuntu operating system wifi-driver not found. Realtek RT8723DE 802.11b/g/n/PCIe adapter in my laptop.

version `GLIBCXX_3.4.26′ not found even though libstdc++.so.6 recent enough

I realize there are many questions like this, but the difference from the others is that my libstdc++.so.6 actually does appear to be up to date enough (see below for the strings it exports). This is an error that comes up when trying to load a dynamic library that i just compiled myself. apt-get upgrade and the like tell me libstdc++.so.6 already is up to date (on version libstdc++6 is already the newest version (9.1.0-2ubuntu2~18.04)).

Full error i get when loading this library (in MATLAB R2019a):

'/home/dee/git_repos/Titta/TobiiMex/TobiiMex_matlab/64/TobiiMex_matlab.mexa64': /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.26' not found (required by /home/dee/git_repos/Titta/TobiiMex/TobiiMex_matlab/64/TobiiMex_matlab.mexa64) 

output of strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBC:

GLIBCXX_3.4 GLIBCXX_3.4.1 GLIBCXX_3.4.2 GLIBCXX_3.4.3 GLIBCXX_3.4.4 GLIBCXX_3.4.5 GLIBCXX_3.4.6 GLIBCXX_3.4.7 GLIBCXX_3.4.8 GLIBCXX_3.4.9 GLIBCXX_3.4.10 GLIBCXX_3.4.11 GLIBCXX_3.4.12 GLIBCXX_3.4.13 GLIBCXX_3.4.14 GLIBCXX_3.4.15 GLIBCXX_3.4.16 GLIBCXX_3.4.17 GLIBCXX_3.4.18 GLIBCXX_3.4.19 GLIBCXX_3.4.20 GLIBCXX_3.4.21 GLIBCXX_3.4.22 GLIBCXX_3.4.23 GLIBCXX_3.4.24 GLIBCXX_3.4.25 GLIBCXX_3.4.26 GLIBC_2.2.5 GLIBC_2.3 GLIBC_2.14 GLIBC_2.6 GLIBC_2.4 GLIBC_2.18 GLIBC_2.16 GLIBC_2.3.4 GLIBC_2.17 GLIBC_2.3.2 GLIBCXX_DEBUG_MESSAGE_LENGTH 

What can i try to fix this?

No matching records found datatable

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    $  (document).ready(function() {       $  ('#dtclientes').dataTable( {           processing: false,           serverSide: true,           ajax: {               url: "lsclients",               type: "GET",               dataSrc: ""           },           columns: [             {data:"name" },             {data:"type" },             {data:"document" },             {data:"phone" },             {data:"status" },             {data:"id" }           ]         });   });

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