In CentOS 7, add setenv PATH <PATH string, use \: to split> when executing the csh command as below. [testuser@centos7~]$ rsh remotehost 'echo $PATH' /usr/bin:/bin [testuser@centos7 ~]$ rsh remotehost 'setenv PATH /usr/bin\:/bin\:/opt;echo $PATH' /usr/bin:/bin:/opt

Read more

Due to technological restrictions, upgrades are not supported if /usr or child folders are distinct partitions from /. It is a fixed condition that cannot be altered. The whole contents of the /usr partition can be moved to the /usr directory using rescue mode as a solution. The contents of /usr can be online relocated …

Read more

At the time of writing, the systemd-resolved service is only available as a Technology Preview on AlmaLinux 8 and AlmaLinux 9. Technology Preview features might not be complete, are not covered by Computeman's production Service Level Agreements (SLAs), and Computeman does not advise utilizing them in production. Customers can test functionality and offer feedback while …

Read more

Filesystem entered ready-only mode, and the following SCSI I/O fault incidents were recorded in syslog messages. kernel: sd 0:0:0:0: timing out command, waited 1080s kernel: sd 0:0:0:0: Unhandled error code kernel: sd 0:0:0:0: SCSI error: return code = 0x06000008 kernel: Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT,SUGGEST_OK If the failover occurs before the timeout, everything will proceed as usual. …

Read more

Configure your email receiver to, for example, display the email's subject in the headers section and its template-based body of text. receivers: - name: EmailReceiver - to: myaddress@example.com headers: subject: 'Summary: {{ .CommonLabels.alertname }} {{ if eq .Status "firing" }}(Firing){{ else }}(Resolved){{ end }}' html: '{{ template "emailcontent.txt" . }}' As indicated below, add the …

Read more

The creation of awx users is handled by the rpm. When the setup script for the package "automation-controller-server-4.x.x-x.el8ap.x86 64" is run, the awx user is created. The user creation operation is handled by the package script. Commands can be used to verify that: # rpm -q --scripts automation-controller-server-4.x.x-x.el8ap.x86_64 The awx user task present in the …

Read more

You are facing an issue while accessing TFTP server, getting 'Transfer timed out' error while put and get. But it works after disabling the firewall. Follow the following steps to resolve this error. Remove the not working TFTP client service. firewall-cmd --remove-service tftp-client Two possible solutions can be applied based on your CentOS version. CentOS …

Read more

Run the following command to calculate the currently used memory (megabytes) in openshift container platform 4.x. oc adm top node | awk '{ sum+=$4} END {print sum}' Run the following command to calculate the used memory (megabytes) for worker nodes in the cluster. oc adm top node --selector='node-role.kubernetes.io/worker=' | awk '{ sum+=$4} END {print sum}' …

Read more

In CentOS 5, 6, and 7, repquota shows different sizes compared to du output as shown below. [root@server]# repquota /xyz | awk 'NR == 3 || NR == 4|| /username/' Block limits File limits User used soft hard grace used soft hard grace username -- 100663296 152043520 157286400 2584811 0 0 [root@server]# du -sch /xyz …

Read more

To change the location of squid.out file, copy /usr/libexec/squid/cache_swap.sh to a new location. # cp /usr/libexec/squid/cache_swap.sh /usr/libexec/squid/cust_cache_swap.sh Open with vi and edit the following section in the new file cust_cache_swap.sh. squid -N -z -F -f $SQUID_CONF >> /new/path/to/squid.out 2>&1 Copy the unit file of squid.service as follows. # cp /usr/lib/systemd/system/squid.service /etc/systemd/system/ Edit /etc/systemd/system/squid.service. (before) ExecStartPre=/usr/libexec/squid/cache_swap.sh …

Read more

The output of ethtool -S <interface> reveals receive fifo errors. Additionally, rx_queue_<n>_drops, the total of which equals the value of rx_fifo_errors, are reported. # ethtool -S eth0 | egrep 'rx_fifo|drops' rx_fifo_errors: 120674 rx_queue_0_drops: 4032 rx_queue_1_drops: 3036 rx_queue_2_drops: 5904 rx_queue_3_drops: 0 rx_queue_4_drops: 228 rx_queue_5_drops: 65656 rx_queue_6_drops: 19267 rx_queue_7_drops: 22551 # ethtool -S eth0 | egrep drops …

Read more

Only files opened by the specified PID are listed using the lsof command with the -p option.The -p option entirely ignores files generated by a thread with a TID. When we grep for a specific PID, it lists all the lines where the PID is located while considering the files opened by a thread. The …

Read more

The hidepid option in RHEL has the value 0 by default. This implies that all data is visible to every user. The directory entries in /proc will remain visible but inaccessible when set to 1.To keep the data hidden from /proc, set the value to 2. Run the following command to instantly apply the changes. …

Read more

Users can upgrade the Ansible version without also upgrading Ansible Tower. Ansible should function well with Tower after being updated to the desired version using package manager (not pip), yum, or apt. When executed from the source, the most recent stable Ansible version is the only version Ansible Tower supports. Ansible cannot be installed using …

Read more

You can initiate DELETE /api/v2/config/ API to deactivate Ansible tower or automation platform subscription. The command to deactivate is given below. $ curl -X DELETE https://<MY_ANSIBLE_TOWER_URL>/api/v2/config/ -u admin -kEnter host password for user 'admin': <password for admin user>

Read more