Source: Reset Root Password on AlmaLinux 9
Continue reading »2 月 232024
1 月 142024
Source: What are the file and file system size limitations for Red Hat Enterprise Linux?
Certified and [maximum] individual file size
File system | RHEL 3 | RHEL 4 | RHEL 5 | RHEL 6 | RHEL 7 | RHEL 8 |
---|---|---|---|---|---|---|
Ext2/3 | 1TiB (3.0) 2TiB (3.5+) | 2TiB | 2TiB | 2TiB | 2TiB | 2TiB |
Ext4 | n/a | n/a | 16TiB (5.6+)2 | 16TiB | 16TiB | 16TiB |
GFS1 | 2TiB | 16TiB [8EiB] | 16TiB [8EiB] | n/a | n/a | n/a |
GFS21 | n/a | n/a | 100TiB (5.3+) [8EiB] | 100TiB [8EiB] | 100TiB [8EiB] | 100TiB [8EiB] |
XFS3 | n/a | n/a | 100TiB [8EiB] | 100TiB [8EiB] | 500TiB [8EiB] | 8EiB |
Certified and [maximum] file system size
File system | RHEL 3 | RHEL 4 | RHEL 5 | RHEL 6 | RHEL 7 | RHEL 8 |
---|---|---|---|---|---|---|
Ext2/3 | 1TiB (3.0) 2TiB (3.5+) [8TiB] | 8TiB | 8TiB (5.0), 16TiB (5.1+)4 | 16TiB | 16TiB | 16TiB |
Ext4 | n/a | n/a | 16TiB [1EiB] (5.6+)2 | 16TiB [1EiB] | 50TiB [1EiB] | 50TiB [1EiB] |
GFS | 2TiB | 16TiB [8EiB] | 16TiB [8EiB] | n/a | n/a | n/a |
GFS21 | n/a | n/a | 100TiB (5.3+) [8EiB] | 100TiB [8EiB] | 100TiB [8EiB] | 100TiB [8EiB] |
XFS3 | n/a | n/a | 100TiB [16EiB] | 300TiB [16EiB]5 | 500TiB [16EiB] | 1PiB |
Units are given in binary prefix:
- TiB = Tebibyte = 240
- PiB = Pebibyte = 250
- EiB = Exbibyte = 260
12 月 242023
8 月 312022
vault.centos.org only supports TLS 1.2 and higher and CentOS 6.6 does not support TLS 1.2. You will either need to update your packages to allow your system to talk TLS 1.2.
Continue reading »8 月 232022
Source: How to enable or disable services?
sudo systemctl start SERVICE
: Use it to start a service. Does not persist after rebootsudo systemctl stop SERVICE
: Use it to stop a service. Does not persist after rebootsudo systemctl restart SERVICE
: Use it to restart a servicesudo systemctl reload SERVICE
: If the service supports it, it will reload the config files related to it without interrupting any process that is using the service.systemctl status SERVICE
: Shows the status of a service. Tells whether a service is currently running.sudo systemctl enable SERVICE
: Turns the service on, on the next reboot or on the next start event. It persists after reboot.sudo systemctl disable SERVICE
: Turns the service off on the next reboot or on the next stop event. It persists after reboot.systemctl is-enabled SERVICE
: Check if a service is currently configured to start or not on the next reboot.systemctl is-active SERVICE
: Check if a service is currently active.systemctl show SERVICE
: Show all the information about the service.sudo systemctl mask SERVICE
: Completely disable a service by linking it to/dev/null
; you cannot start the service manually or enable the service.sudo systemctl unmask SERVICE
: Removes the link to/dev/null
and restores the ability to enable and or manually start the service.
12 月 032020
3 月 302019
3 月 302019
3 月 052019
vi /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
HWADDR=XXXXXXXXXXX
UUID=XXXXXXXXXXX
BOOTPROTO="static"
IPADDR="10.255.69.122"
IPV6INIT="no"
NETMASK="255.255.255.252"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE="Ethernet"
vi /etc/rc.local
/sbin/ip route add 10.0.0.0/8 via 10.255.69.121
OR
vi /etc/sysconfig/network-scripts/route-eth1
10.0.0.0/8 via 10.255.69.121
2 月 032019
Bonding 2 Gigabyte NIC together to get 2Gbps performance.
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