Vyacheslav, Автор в IT Blog

Replacing a word in Linux files

Once, when replacing the network adapter in the server, I needed to change its old name in the netplan configuration, that is, replace several hundred words in the file, so I came up with the command:

Solution “mod_auth_file/1.0: unable to use world-readable AuthUserFile /etc/proftpd/ftpd.passwd”

Once when running proftpd with configured users in a file, I noticed the following error:

LACP Link Aggregation on Cisco Nexus 3064

I will give an example of configuring LAG (LACP) on a Cisco Nexus 3064.

Mellanox ConnectX errors “Could not join netdev: No space left on device”

Once after installing the Mellanox ConnectX-3 Pro EN / HP 544+QSFP (764284-B21) network adapter into the HPE DL380 Gen10 server, I encountered errors in the /var/log/syslog file:

Intel 700 Series Network Adapters Firmware Update

For example, I will update the firmware in the Intel XL710-QDA1 network adapter from version 6.01 (6.01) to 8.21 (8.15).

Intel i40e driver update

For example, I will take an Intel XL710-QDA1 QSFP+ network adapter and a couple more with an Intel chip, for example, HPE 562SFP+, I will install them in an HPE DL380 Gen10 server running Ubuntu Server 18.04.

Configuring DHCP Relay on Cisco Nexus 3064

For example, I will configure DHCPv4 Relay on Cisco N3K-C3064PQ-10GX. Initially, I configured this switch for L2, but some VLANs had to be configured as L3 and DHCPv4 Relay enabled.

Configuring Cisco N3K-C3064PQ-10GX

For example, I will configure the Cisco Nexus N3K-C3064PQ-10GX switch.

How to delete a profile on Odnoklassniki

To remove a page (profile) from the odnoklassniki.ru (ok.ru) social network, you must:

How to disable “New release available” email notifications on Ubuntu

Once I noticed that new servers running Ubuntu Server 18.04 operating systems periodically send email notifications: