For Powerdns 4.7 You need to change reverse ip record for 192.168.1.11,So login to powerdns server via ssh an type; pdnsutil replace-rrset 1.168.192.in-addr.arpa 11 PTR 3600 “rdns.abc.com” System should now answer like this. Current records for 11.1.168.192.in-addr.arpa IN PTR will be replaced New rrset: 11.1.168.192.in-addr.arpa. 3600 IN PTR rdns.abc.com Also you can check […]
# mkdir -p /root/images/ # dd if=/dev/zero of=/var/tmpfile bs=1 count=0 seek=4G # mkfs.ext4 /var/tmpfile # mount -o loop,rw,nodev,nosuid,noexec /var/tmpfile /tmp # chmod 1777 /tmp # mount -o rw,noexec,nosuid,nodev,bind /tmp /var/tmp # vi /etc/fstab /var/tmpfile /tmp ext4 rw,noexec,nosuid,nodev,bind 0 0 /tmp /var/tmp none rw,noexec,nosuid,nodev,bind 0 0
Use the dd command to measure server throughput (write speed):# dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync to measure server latency dd if=/dev/zero of=/tmp/test2.img bs=512 count=1000 oflag=dsync
After setting up the EFK (Elasticsearch, Fluentd, Kibana) stack on Kubernetes, Fluentd collects logs from Kubernetes pods and sends them to Elasticsearch for log collection. This process is explained step-by-step below: Fluentd ConfigurationFluentd collects logs generated by pods in Kubernetes. By default, Fluentd monitors and collects logs in Kubernetes’ /var/log/containers directory. Fluentd is run as […]
If you forget the Windows 10 administrator password you used in KVM, you can reset your password by performing an operation on the qcow image. First, you should install guestfish on your Linux KVM host..Installation steps; sudo apt install libguestfs-tools I did it with the command. Then; sudo guestfish -i […]
For your Cloudlinux or a different Redhat based server, add the appropriate version repo below to your server. #RHEL 7 and Oracle Linux 7 #curl https://packages.microsoft.com/config/rhel/7/prod.repo | sudo tee /etc/yum.repos.d/mssql-release.repo #RHEL 8 and Oracle Linux 8 # curl https://packages.microsoft.com/config/rhel/8/prod.repo | sudo tee /etc/yum.repos.d/mssql-release.repo #RHEL9 # curl https://packages.microsoft.com/config/rhel/9/prod.repo | sudo tee /etc/yum.repos.d/mssql-release.repo Delete any potentially conflicting […]
In this example, all emails whose sender is [email protected] are deleted from the queue. postqueue -j | jq -r ‘select(.sender == “[email protected]”) | .queue_id’ | xargs -I {} postsuper -d {} jq must be installed ( apt install jq ) for other filtering criteria postqueue -j | jq You can type and see the fields […]
Phalcon 3.x (old version) installation steps on Cyber Panel + Ubuntu 20 server 1.Install the pecl and pear plugins for the php version you want. apt install lsphp72-pecl lsphp72-pear 2. Download Phalcon 3.4.5 tar file. wget https://github.com/phalcon/cphalcon/archive/refs/tags/v3.4.5.tar.gz tar zxvf v3.4.5.tar.gz cd cphalcon-3.4.5/build/ ./install 3.If all steps are successful, add the ini file Create […]
Unable to register authentication agent ** (pkttyagent:478736): WARNING **: 18:16:34.777: Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject Error registering authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0) # groupadd -g 23 nohidproc # usermod -a -G nohidproc polkitd # mount -o remount,rw,hidepid=2,gid=nohidproc /proc # systemctl restart polkit […]
/sbin/plesk bin dns -a abc.com -mx “” -mailexchanger mail.abc.com -priority 1
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