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We install certutil and pk12util if necessary:

sudo apt install libnss3-tools

On Linux, Chromium uses the NSS Shared DB. Check if you have the ~/.pki/nssdb directory:

ls $HOME/.pki/nssdb

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{
  "AutoSelectCertificateForUrls": ["{\"pattern\":\"*\",\"filter\":{}}"]
}

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FortiClient VPN CLI - Linux

Installation

Before you install the program you also need to install xterm, if this is not already installed, as this program is sometimes used by the client to view the license. To do this open a Terminal and run the following command:

sudo apt-get install xterm

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Screen

Instalation

sudo apt install screen

Show sessions

screen -ls

Create a new session

screen -S name_of_the_session

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SQL Server Snippets

---

Force drop database

USE master;
ALTER DATABASE [database_name] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
DROP DATABASE [database_name];

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# WARNING! This will remove:
#  - all stopped containers
#  - all networks not used by at least one container
#  - all images without at least one container associated to them
#  - all build cache
docker system prune -a

# Stop all containers
docker stop `docker ps -qa`

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# post_loc.txt contains the json you want to post
# -p means to POST it
# -H adds an Auth header (could be Basic or Token)
# -T sets the Content-Type
# -c is concurrent clients
# -n is the number of requests to run in the test

ab -p post_loc.txt -T application/json -H 'Authorization: Token abcd1234' -c 10 -n 2000 http://example.com/api/v1/locations/

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Word jumping

Go to Preferences > Profiles > Keys and add folowing sequences:

FOR	ACTION	SEND
⌘←	"Send Hex Code"	0x01
⌘→	"Send Hex Code"	0x05
⌥←	"Send Escape Sequence"	b
⌥→	"Send Escape Sequence"	f

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 private void initialiseOnlinePresence() {
        final DatabaseReference onlineRef = databaseReference.child(".info/connected");
        final DatabaseReference currentUserRef = databaseReference.child("/presence/" + userId);
        onlineRef.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(final DataSnapshot dataSnapshot) {
                Log.d(TAG, "DataSnapshot:" + dataSnapshot);
                if (dataSnapshot.getValue(Boolean.class)){
                    currentUserRef.onDisconnect().removeValue();
                    currentUserRef.setValue(true);

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VACUUM
VACUUM [tablename]
VACUUM FULL
VACUUM FULL [tablename]

REINDEX TABLE mytable
REINDEX INDEX myindex