Migrasi Server USA 13-11-2018

Sehubungan akan dilakukan maintenance server hosting USA, maka kami informasikan bahwa akan dilakukan migrasi server hosting USA pada hari ini Selasa 13-11-2018 mulai pukul 17.00 WIB.
Akan terjadi pergantian IP address dari semula 207.244.157.188 menjadi 74.222.14.66.

Bila anda menggunakan NS kami sesuai prosedur yang diberikan di email aktifasi maka anda tidak perlu melakukan perubahan apapun di DNS record domain anda.

Akan tetapi bila anda menggunakan NS selain yang disebutkan di atas maka anda harus mengubah A record domain anda dari semula 207.244.157.188 menjadi 74.222.14.66.

Demikian disampaikan, mohon maaf atas ketidaknyamanan ini dan terima kasih atas kerjasama dan kepercayaan anda kepada Whplus selama ini.

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How to disable IPv6 on CentOS 7

To verify if IPv6 is enabled or not, execute :

# ifconfig -a | grep inet6
inet6 fe80::211:aff:fe6a:9de4 prefixlen 64 scopeid 0x20
inet6 ::1 prefixlen 128 scopeid 0x10[host]

1. Disable IPv6 in kernel module (requires reboot)
1. Edit /etc/default/grub and add ipv6.disable=1 in line GRUB_CMDLINE_LINUX, e.g.:

# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="ipv6.disable=1 crashkernel=auto rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

2. Regenerate a GRUB configuration file and overwrite existing one:

# grub2-mkconfig -o /boot/grub2/grub.cfg

3. Restart system and verify no line “inet6” in “ip addr show” command output.

# shutdown -r now

# ip addr show | grep net6
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How To Change SSH Port On CentOS 7

To change the default SSH port, the first thing you want to do is backup the current SSH configuration on your system. To do that, run the commands below.

cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak

Next, run the commands below to open the default SSH configuration file

sudo vi /etc/ssh/sshd_config

# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
Port 2244
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

Save the file.

After saving, don’t exit until you’ve completed these steps.
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