Recently I ran into another issue with Fedora 33, after the upgrade gcloud command not working anymore. Turn out it’s a python 3.9 issue, here is a quick fix
export CLOUDSDK_PYTHON=python2
Fedora
Fedora 33 git pull Permission denied (publickey)
I recently ran into this issue with git pull on Fedora 33, here is a quick fix to keep your current key pairs working
vim ~/.ssh/config
## Add the following lines at the top
Host *
PubkeyAcceptedKeyTypes +rsa-sha2-256,rsa-sha2-512Fedora Install VS Code using Terminal Command Line
The following command lines help installing VS code on the latest Fedora using Terminal
sudo rpm --import https://packages.microsoft.com/keys/microsoft.asc sudo sh -c 'echo -e "[code]\nname=Visual Studio Code\nbaseurl=https://packages.microsoft.com/yumrepos/vscode\nenabled=1\ngpgcheck=1\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc" > /etc/yum.repos.d/vscode.repo' sudo dnf update sudo dnf install code
Install MongoDB GUI tools Compass on Fedora
wget https://downloads.mongodb.com/compass/mongodb-compass-1.22.1.x86_64.rpm sudo dnf install ./mongodb-compass-1.22.1.x86_64.rpm
Install MongoDB server on Fedora command
sudo vi /etc/yum.repos.d/mongodb.repo
[Mongodb]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/amazon/2/mongodb-org/4.2/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.2.asc
sudo dnf update
sudo dnf install mongodb-org
sudo systemctl enable mongod.service
sudo systemctl start mongod.service
mongod --version
mongo
> use test;
switched to db test
> db.test.save({'hello':'world'})
WriteResult({ "nInserted" : 1 })
> db.test.find()
{ "_id" : ObjectId("5f82b166af5d9be8c5bd0449"), "hello" : "world" }
>
Use locate command to find files in Linux
locate is a very useful command, which can be use from time to time to find files in Linux when we don’t know where that file is.
sudo apt update sudo apt install locate sudo updatedb # need to let sometime for this to finish locate .bashrc # locate can be called from anywhere locate -c "*thingtosearch" # search by regex, show count locate -e "*thingtosearch" # search in real-time, regardless db not updated. locate -i "*thingToSearch" # search and ignore case locate -S # view locate db at 10:56:54 Database /var/cache/locate/locatedb is in the GNU LOCATE02 format. Database was last modified at 2020:10:07 10:38:37.467600124 +0200 Locate database size: 5860142 bytes All Filenames: 464048 File names have a cumulative length of 34300427 bytes. Of those file names, 1317 contain whitespace, 0 contain newline characters, and 32 contain characters with the high bit set. Compression ratio 82.92% (higher is better)
Install Midori browser using Terminal
Midori is probably one of the most lightweight browser for Linux, sometimes we just need it to quickly search for text information on Google and this is the browser for that purpose.
sudo apt update sudo apt install midori midori
Open port on Linux command using iptables
For this example let’s say we want to open port 8080
iptables -A INPUT -m state --state NEW -p tcp --dport 8080 -j ACCEPT iptables-save
Install PostgreSQL on Fedora with password login
sudo dnf update sudo dnf install postgresql postgresql-server sudo postgresql-setup initdb sudo systemctl enable postgresql sudo systemctl start postgresql sudo -u postgres psql
To change default postgres user password, create a database and grant all privileges to that user:
postgres=# \password postgres
Enter new password:
Enter it again:
postgres=# create database mydb;
CREATE DATABASE
postgres=# grant all privileges on database mydb to postgres;
GRANT
postgres=# SHOW config_file;
config_file
-----------------------------------------
/etc/postgresql/12/main/postgresql.conf
(1 row)
postgres=# SHOW hba_file;
hba_file
-------------------------------------
/etc/postgresql/12/main/pg_hba.conf
(1 row)
postgres-# \qTo make this change effective, changes in pg_hba.conf are necessary:
sudo vim /var/lib/pgsql/data/pg_hba.conf # TYPE DATABASE USER ADDRESS METHOD # "local" is for Unix domain socket connections only local all all md5 # IPv4 local connections: host all all 127.0.0.1/32 md5 # IPv6 local connections: host all all ::1/128 md5 # Allow replication connections from localhost, by a user with the # replication privilege. local replication all peer host replication all 127.0.0.1/32 ident host replication all ::1/128 ident service postgresql restart sudo -u postgres psql Password for user postgres: postgres=# \q