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[Solved] Unable to locate package python-pip

Error:- [email protected]:~# sudo apt install python-pip Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package python-pip Solution:- [email protected]:~# sudo apt-get update && sudo apt-get install python-pip Get:1 http://ftp.harukasan.org/kali kali-rolling InRelease [30.5 kB] Get:2 http://ftp.harukasan.org/kali kali-rolling/main amd64 Packages [16.5 MB] Get:3 http://ftp.harukasan.org/kali kali-rolling/non-free amd64 Packages [195 kB] Get:4 http://ftp.harukasan.org/kali kali-rolling/contrib amd64 Packages [99.6 kB] Fetched 6,860 kB in 44s (155 kB/s) Reading package lists... Done Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: lib

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[Solved] Virtualbox dependencies libqt5opengl5 libqt5printsupport5 libsdl1.2debian libvpx5 not Found

Error:- Packages not found OR have dependencies libqt5opengl5 libqt5printsupport5 libsdl1.2debian libvpx5 Solution:- Copy-paste all these commands, the order of the packages installation will sort out the dependencies issue sudo apt-get install libqt5opengl5 sudo apt-get install libsdl1.2debian sudo apt --fix-broken install sudo apt-get install libqt5opengl5 sudo apt-get install libsdl1.2debian sudo apt-get install libqt5opengl5 libqt5printsupport5 libsdl1.2debian libvpx5 sudo apt-get install libqt5printsupport5 sudo apt-get install libqt5opengl5 libqt5printsupport5 libsdl1.2debian libvpx5 sudo apt-get install libsdl1.2debian sudo apt-get install libqt5opengl5 libqt5printsupport5 libsdl1.2debian sudo apt-get install libvpx5 sudo apt --fix-broken install

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[Solved] adobe-flashplugin is not available – Ubuntu 16/18/19

Error:- adobe-flashplugin is not available Solution:- sudo apt install browser-plugin-freshplayer-pepperflash sudo apt install adobe-flashplugin sudo apt install ubuntu-restricted-extras sudo apt install flashplugin-installer sudo add-apt-repository "deb http://archive.canonical.com/ $(lsb_release -sc) partner" sudo apt update sudo apt install adobe-flashplugin browser-plugin-freshplayer-pepperflash Comment:- I was struggling with the same then in the process of troubleshooting, i ran above commands and it was installed, Basically for me it was the only archive.canonical.com repo which had the package.

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[Solved] certbot: error: unrecognized arguments –webroot

Error:- [email protected]:~# certbot-auto certonly -d the-d2.com -d www.the-d2.com --webroot "/home/the-d2/public_html" usage: certbot-auto [SUBCOMMAND] [options] [-d DOMAIN] [-d DOMAIN] ... Certbot can obtain and install HTTPS/TLS/SSL certificates. By default, it will attempt to use a webserver both for obtaining and installing the certificate. certbot: error: unrecognized arguments: /home/the-d2/public_html Solution:- certbot-auto certonly -d the-d2.com -d www.the-d2.com --webroot --webroot-path "/home/the-d2/public_html"  The issue was, i was missing the flag --webroot-path , but if you will run certbot-auto --help, you will not find any reference to that flag.  

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[Solved] Fatal error: Uncaught CredisException: Connection to Redis 127.0.0.1:6379 failed. Last Error : (111) Connection refused

Error:- Fatal error: Uncaught CredisException: Connection to Redis 127.0.0.1:6379 failed after 2 failures.Last Error : (111) Connection refused in /home/the-d2/public_html/vendor/colinmollenhour/credis/Client.php:463 Stack trace: #0 /home/the-d2/public_html/vendor/colinmollenhour/credis/Client.php(459): Credis_Client->connect() #1 /home/the-d2/public_html/vendor/colinmollenhour/credis/Client.php(792): Credis_Client->connect() #2 /home/the-d2/public_html/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(432): Credis_Client->__call('hGet', Array) #3 /home/the-d2/public_html/vendor/magento/zendframework1/library/Zend/Cache/Core.php(306): Cm_Cache_Backend_Redis->load('33d_GLOBAL__DIC...', false) #4 /home/the-d2/public_html/vendor/magento/framework/Cache/Frontend

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[Solved] certificate verification failed for untrusted issuer /OU=GlobalSign Root CA

Error:- Nov 11 17:09:43 server postfix/smtp[30572]: certificate verification failed for aspmx.l.google.com[74.125.200.26]:25: untrusted issuer /OU=GlobalSign Root CA - R2/O=GlobalSign/CN=GlobalSign Nov 11 17:14:31 server postfix/smtp[3332]: certificate verification failed for in.hes.trendmicro.com[54.219.191.21]:25: untrusted issuer /C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA Nov 11 17:19:32 server postfix/smtp[5333]: certificate verification failed for mx6.mail.icloud.com[17.133.229.15]:25: untrusted issuer /C=US/O=GeoTrust Inc./CN=GeoTrust Global CA Nov 11 17:19:35 server postfix/smtp[5333]: certificate verification failed for mx5.mail.icloud.com[17.133.229.14]:25: untrusted issuer /C=US/O=GeoTrust Inc./CN=GeoTrust Global CA Solution:- You need to mention the SS

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[Solved] Error getting authority: PolicyKit1′: timed out (g-dbus-error-quark, 20)

Error:- Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1: GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.freedesktop.PolicyKit1': timed out (g-dbus-error-quark, 20) Troubleshooting:- systemctl status polkit ● polkit.service - Authorization Manager Loaded: loaded (/usr/lib/systemd/system/polkit.service; static; vendor preset: enabled) Active: failed (Result: exit-code) since Sat 2019-11-16 09:02:02 EST; 1min 58s ago Docs: man:polkit(8) Process: 11321 ExecStart=/usr/lib/polkit-1/polkitd --no-debug (code=exited, status=1/FAILURE) Main PID: 11321 (code=exited, status=1/FAILURE) systemctl start polkit Error getting authority: Error initializing authority: Error calling StartServic

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[Solved] MySQL service not starting – Job for mariadb.service failed because the control process exited with error code. journalctl -xe

Issue / Error:- [[email protected] ~]# service mysqld restart Redirecting to /bin/systemctl restart mysqld.service Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details. MySQL error logs:- [[email protected] ~]# cat /var/lib/mysql/server.the-d2.com.err 2019-10-20 10:12:56 1220654356911872 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority(). 2019-10-20 10:12:56 1220656458905792 [Note] InnoDB: Highest supported file format is Barracuda. 2019-10-20 10:12:56 1220656458905792 [Note] InnoDB: 128 out of 128 rollback segments are active. 2019-10-20 10:12:56 1220656458905792 [Note] InnoDB: Creating shared tab

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