Zimbra

Remove queued mails for particular Email account – Zimbra/Postfix

Login to the server via SSH and run below command:- # /opt/zimbra/common/sbin/postqueue -p | tail -n +2 | awk 'BEGIN { RS = "" } /[email protected]\.com/ { print $1 }' | tr -d '*!' | /opt/zimbra/common/sbin/postsuper -d - Replace navdeep.singh and domain name with your choice You can also use above command on a non-zimbra server but make sure it has postfix for the mailing puprose, in this case you can just use postqueue and postsuper instead of using their full path. Your zimbra server may has postqueue and postsuper in a bit different folder so try to find them and best way to do that is this:- # updatedb # make sure you has mlocate package OR locate command installed # locate postqueue # locate postsuper  ...

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Install OCS Inventory Agent on CentOS 7

Install EPEL Repo on CentOS 7 cd /tmp wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm yum install -y epel-release-latest-7.noarch.rpm yum --disablerepo="*" --enablerepo="epel" install ocsinventory-agent -y Install Basic packages for agent yum install perl-XML-Simple perl-Net-IP Download latest agent rpm package wget https://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/o/ocsinventory-agent-2.6.0-3.2.el7.x86_64.rpm Install package yum install ocsinventory-agent-2.6.0-3.2.el7.x86_64.rpm Open the configuration file. vi /etc/ocsinventory/ocsinventory-agent.cfg Uncomment the following lines. Set a tag for the current server and the address of your OCS server. server = http://your.ocs.server/ocsinventory tag = your_tag Restart agent ...

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Samba: Linux Iptables Firewall Configuration – Allow Samba ports in CentOS 6

Add below rules in iptables rule file vi /etc/sysconfig/iptables Rules:- -A INPUT -s 0.0.0.0/0 -m state –state NEW -p udp –dport 137 -j ACCEPT -A INPUT -s 0.0.0.0/0 -m state –state NEW -p udp –dport 138 -j ACCEPT -A INPUT -s 0.0.0.0/0 -m state –state NEW -p tcp –dport 139 -j ACCEPT -A INPUT -s 0.0.0.0/0 -m state –state NEW -p tcp –dport 445 -j ACCEPT Now restart iptables service service iptables restart  

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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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Bad bots list – few more in 2019

AhrefsBot/6.1; evc-batch/2.0)" spider/4.0 Qwantify/2.4w; DomainSigmaCrawler/0.1; Mappy/1.0; SemrushBot/6~bl; Nimbostratus-Bot/v1.3.2; SemrushBot-SI/0.97; coccocbot-image/1.0; SemrushBot/1.0~bm; SEOkicks; houzzbot; GrapeshotCrawler/2.0; MegaIndex.ru/2.0; YandexImageResizer/2.0; coccocbot-web/1.0; TinEye-bot/1.31; YandexImages/3.0; Pinterestbot/1.0; MJ12bot/v1.4.8; SeznamBot/3.2; DotBot/1.1; bingbot/2.0; YandexBot/3.0; BLEXBot/1.0;

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[Solved] Connection to Redis failed after x failures Client.php Credis_Client->connect

Issue:-   [[email protected] ~]# cd /home/the-d2/public_html/var/report/ [[email protected] report]# cat 118233337366 a:4:{i:0;s:44:"Connection to Redis failed after 2 failures.";i:1;s:1529:"#0 /home/the-d2/public_html/lib/Credis/Client.php(362): Credis_Client->connect() #1 /home/the-d2/public_html/lib/Credis/Client.php(447): Credis_Client->connect() #2 /home/the-d2/public_html/lib/Credis/Client.php(440): Credis_Client->__call('select', Array) #3 /home/the-d2/public_html/lib/Cm/Cache/Backend/Redis.php(117): Credis_Client->select(0) #4 /home/the-d2/public_html/lib/Zend/Cache.php(153): Cm_Cache_Backend_Redis->__construct(Array) #5 /home/the-d2/public_html/lib/Zend/Cache.php(94): Zend_Cache::_makeBackend('Cm_Cache_Backen...', Array, true, true) #6 /home/the-d2/public_html

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