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(newest | oldest) View (newer 20 | older 20) (20 | 50 | 100 | 250 | 500)- 05:04, 12 November 2023 Saurabh talk contribs created page Rocky 9.x decompress xz files (Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > Desktop tools and applications > Rocky 9.x decompress xz files To decompress .xz files on rocky linux we can use: # Install xz utilities #:<pre> #:: dnf -y install xz #:</pre> # Then decompress xz file using: #:<pre> #:: xz --decompress <filename> #:</pre> Refer: * https://computingforgeeks.com/how-to-extract-xz-files-on-linux/ Home...")
- 04:59, 12 November 2023 Saurabh talk contribs created page Rocky 9.x Reopening closed tabs in firefox (Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > Desktop tools and applications > Firefox browser > Reopening closed tabs in firefox Sometimes before closing the browser we may want to save all tabs to reopen them again later. Also a few times instead of closing another window we may close firefox browser along with all tabs....")
- 04:53, 12 November 2023 Saurabh talk contribs created page Rocky 9.x Firefox browser (Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > Desktop tools and applications > Firefox browser *Rocky 9.x Reopening closed tabs in firefox Home > Rocky Linux or CentOS > Rocky Linux 9.x > Desktop tools and applications > Firefox browser")
- 04:30, 15 October 2023 Saurabh talk contribs created page Windows 11 Enable clipboard history to allow pasting from multiple different clipboards (Created page with "Home > Windows > Windows 11 > Enable clipboard history to allow pasting from multiple different clipboards =Enable clipboard history in settings= It is possible to have more than one clipboard in Windows by enabling: # Go to Settings -> System -> Clipboard # Enable toggle buttom for clipboard history. Refer: * https://www.howtogeek.com/671222/how-to-enable-...")
- 05:53, 8 October 2023 Saurabh talk contribs created page Rocky 9.x Force rescan or check of xfs filesystem on reboot (Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > File system management > Force rescan or check of xfs filesystem on reboot To force rescan or check of xfs filesystem on reboot use: # Edit /etc/fstab file and change values in last two columns to non-zero # Create a file using: #:<pre> #:: t...")
- 05:49, 8 October 2023 Saurabh talk contribs created page Rocky 9.x file system management (Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > File system management *Rocky 9.x Force rescan or fsck of ext filesystem on reboot *Rocky 9.x Force rescan or check of xfs filesystem on reboot Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > Rocky 9.x file syst...")
- 05:42, 8 October 2023 Saurabh talk contribs created page Rocky 9.x Force rescan or fsck of ext filesystem on reboot (Created page with "Home > Rocky Linux or CentOS > Rocky Linux 9.x > System Administration > File system management > Force rescan or fsck of ext filesystem on reboot We may want to enforce fsck or checking of ext partition on reboot. For that use: <pre> tune2fs -c 1 /dev/sdXY </pre> The above will cause filesystem to get scanned on...")
- 05:16, 8 October 2023 Saurabh talk contribs created page CentOS 8.x migrate to CentOS 8.x Stream (Created page with "Home > CentOS > CentOS 8.x > System Administration > Package management > CentOS 8.x migrate to CentOS 8.x Stream If you have older CentOS 8 machines they wont work now as repositories have been discontinued. To make them usable, we can migrate from CentOS to CentOS 8.x stream using: # Change all repository configuration as follows ##...")
- 05:08, 8 October 2023 Saurabh talk contribs created page CentOS 8.x Control Web panel miscellaneous issues (Created page with "Home > CentOS > CentOS 8.x > Email servers > Control Web panel > Miscellaneous issues =Disable Excessive resource usage alerts for processes= Control web panel will send periodic alerts for processes using too much resources. For example for zabbix-agent2. To disable such alerts use: # SSH to server as root # Edit file '<tt>/etc/csf...")
- 06:27, 8 September 2023 Saurabh talk contribs created page Planning for migrating a firewall (Created page with "Home > Enterprise security devices or applications > Planning for migrating a firewall While coordinating on downtime / planning for migrating to a new firewall, it makes sense to have following information : # From when to when is the downtime? # Who is the contact person available during downtime to help with: #* Cable identification (ISP1 cable, LAN cable, etc.) locally on site #* Coordiante with local users on the site if and when services are...")
- 06:14, 8 September 2023 Saurabh talk contribs created page Paloalto URL filtering (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto URL filtering =Creating desired URL filtering policy= Clone the default URL filtering policy default and configure a URL filtering policy as per organization (Eg block violence sites). The meaning of category eg business is not explained anywhere on the interface and is left up to interpretation. However there is a check URL link. https://urlfiltering.paloalt...")
- 06:10, 8 September 2023 Saurabh talk contribs created page Paloalto troubleshooting options (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto troubleshooting options *Paloalto firewall packet capturing *Paltalto firewall Monitor Session Browser *Paltalto firewall Monitor allowed/denied traffic Home > Enterprise security devices or applications > Paloalto firewall > Paloalto troubleshooting options")
- 06:10, 8 September 2023 Saurabh talk contribs created page Paltalto firewall Monitor allowed/denied traffic (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto troubleshooting options > Paltalto firewall Monitor allowed/denied traffic Go to Monitor -> Logs -> Traffic. Here we filter for source/destination. Here unlike session monitoring we can see historic (Based on log storage capacity of firewall) sessions and whether they were allowed or denied. Example filter ( addr.dst in 192.168.0.0/24 ) Same as monitor ->...")
- 06:09, 8 September 2023 Saurabh talk contribs created page Paltalto firewall Monitor Session Browser (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto troubleshooting options > Paltalto firewall Monitor Session Browser We can monitor for sessions from specific source or to specific destinations to see whether they are even going through firewall. Once we go to Monitor -> Session Browser and configure filters. For filter click on any source / destination etc. listed and change the value. Example filter to s...")
- 06:06, 8 September 2023 Saurabh talk contribs created page Paloalto Policy based forwarding (PBF) (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto Policy based forwarding (PBF) On PBF note that: * We dont need PBF for incoming NAT reply packets. Using ECMP with symmetric return on router is enough. * Dont do PBF with a specific ISP when the same source machine LAN machine is NAT with public IP of other ISP. In that case reply packets try to use a different ISP (As per PBF) and configuration does not works...")
- 06:00, 8 September 2023 Saurabh talk contribs created page Paloalto using ECMP for active/active ISP connectivity (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > aloalto using ECMP for active/active ISP connectivity =Enabling ECMP= If organization has multiple ISPs then: # Enable ECMP in virtual router with symmetric return. We can enable up to 4 equal cost routes via ECMP # After commit check "runtime stats" local routing table of the device (Should be done on device, cant be done via panorama) and validate that we have default r...")
- 05:44, 8 September 2023 Saurabh talk contribs created page Paloalto NAT examples (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto NAT examples =NAT of public IP to private IP on a few ports= To NAT a public IP:port to private IP:port use: # Create WAN to WAN Security rule with destination as NATed public IP with all services and all ports # Create NAT rule from WAN to LAN with source IP as any and destination IP as WAN public IP. After NAT change the destination IP to LAN IP. Here in NAT...")
- 05:41, 8 September 2023 Saurabh talk contribs created page Paloalto Configure firewall for proxy DNS (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto Configure firewall for proxy DNS Palo Alto Networks firewalls can act as DNS servers for local users. By configuring DNS Proxy on the firewall, you can intercept DNS requests from internal clients and forward them to external DNS servers or resolve them locally. =Configure DNS proxy via setup and service route configuration= To check the DNS settings on a Palo A...")
- 05:34, 8 September 2023 Saurabh talk contribs created page Paloalto general notes or best practices (Created page with "Home > Enterprise security devices or applications > Paloalto firewall > Paloalto general notes or best practices =Add /32 netmask for a single IP= Adding netmask eg /32 for a single IP is important. Without this the policy / rule may get accepted and committed but does not works unless we add /32 netmask. This should be followed for all address objects without fail. Home > Enterprise security devices or applications >...")
- 04:43, 8 September 2023 Saurabh talk contribs created page Check cluster health via nagios plugin (Created page with "Home > Suse > SAP setup and maintenance > Check cluster health via nagios plugin We can monitor cluster health using nagios plugin using: '''Not tested in production''' #Create a plugin to be called via nrpe on the cluster host '<tt>/usr/lib64/nagios/plugins/cluster_check.sh</tt>' with: <source type="bash"> #!/bin/bash # Run crm status command and capture output crm_output=$(crm status 2>&1) # Check for error or warning in output, ignoring ca...")