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Slackware Application

Running applications (@software) on Slackware… most are applicable to all distributions.

'Hidden' Application

There are a couple (a few?)of applications that I thought have great features but relatively unknown (I only knew about them after looking for specific solution). Here they are:

xfig - nice app to create figures for use with latex
xpaint - can do screen capture (xpaint -snapshot)

Apache (web server) Setup

Modify httpd config file:

change document root to a folder my main user have full access
- also create a link to it from my user account
allow php to be indexed ⇒ add to directory index in dir_module
enable php (towards the end of the file) ⇒ include mod_php.conf
enable mod_rewrite (API server?) ⇒ LoadModule … mod_rewrite.so
optional: set serveradmin email and servername
optional: to only serve locally, set listen localhost:80 ???

More modifications for https:

enable loadmodule mod_ssl.so
enable loadmodule mod_socache_shmcb.so

generate private key:
- ```
openssl genrsa -out privkey.pem 2048
```
- rsa private key with 2048-bit long modulus written to file

generate cert:

openssl req -new -x509 -key privkey.pem -out cacert.pem -days 1095

include httpd-ssl.conf
- modify httpd-ssl.conf accordingly…

mariadb/mysql Setup

run
```
mysql_install_db
```
make sure permision given to user mysql
```
chown -R mysql:mysql /var/lib/mysql
```
start daemon rc.mysqld
run
```
/usr/bin/mysql_secure_installation
```

create specific database for specific app
```
create database app_db;
```

create specific user for specific app and grant all access

grant all privileges on app_db.* to 'user_app'@'localhost' identified by 'pass_app';

just formality, run
```
flush privileges;
```

to additionally create specific user for specific app

create user 'user_app'@'localhost' identified by 'pass_app';

recover root password:
stop daemon rc.mysqld

run

# mysqld_safe --skip-grant-tables &
# mysql -u root
$ mysql -uroot -p
mysql> use mysql;
mysql> update user set password=PASSWORD('<newpass>') where User='root';
mysql> flush privileges;
mysql> exit

Backup a DB:

mysqldump -p -u user userdb > userapp-$(date +%Y%m%d%H%M%S).sql

TeXLive Install/Setup

The default tetex is usable, but it is no longer maintained and some new packages are not available.

The recommended TeX distribution is TeXLive.

Download from here
- get Unix Installer
- extract path: /home/share/tool/texlive

Execute

./install-tl -gui

install path: /home/share/tool/texlive/YYYY (currently, YYYY=2020)
select basic, then customize (e.g. lang:en, graphics, math, etc.)

setup environment variable

TL_VERS="2020"
TL_PATH="/home/share/tool/texlive/${TL_VERS}"
export PATH=${TL_PATH}/bin/x86_64-linux:$PATH
export MANPATH=${TL_PATH}/texmf-dist/doc/man:$MANPATH
export INFOPATH=${TL_PATH}/texmf-dist/doc/info:$INFOPATH

setup tlmgr (tlmgr option repository ctan)

Run manager
```
tlmgr --gui
```
- needs perl-tk
- to get collection of a package
```
tlmgr show <package>
```

2023/08/29 13:04

rsync server

create /{etc}/rsyncd.conf

rsync.conf

max connections = 2
log file = /var/log/rsync.log
timeout = 300
 
[share]
comment = Shared Stuff
path = /home/share
read only = yes
list = yes 
hosts allow = 192.168.3.0/24
uid = nobody
gid = nobody
#auth users = pub
#secrets file = /{etc}/rsyncd.secrets

modify subnet mask address for host allow accordingly

in inetd.conf (etc)

insert this line

rsync	stream	tcp	nowait	root	/usr/bin/rsync	rsync --daemon

in services (etc)
- insert this line
```
rsync	873/tcp
```
create rsyncd.secrets in etc
rsyncd.secrets
```
pub:pub
```

start rsync daemon

/usr/bin/rsync --daemon --config=/{etc}/rsyncd.conf

Azman @UniMAP

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