Servidor NTP CentOS 7

01/02/2016 / jhonespetter

Servidores NTP para sincronização da data e hora dos servidores são primordiais para manter o ambiente correto e rotinas em execução corretas, abaixo os passos para configurar o fuso horário, região e servidor NTP para sincronização. Configure o Time Zone conforme sua região:

<strong># tzselect</strong> 
Please identify a location so that time zone rules can be set correctly.
Please select a continent or ocean.
 1) Africa
 2) Americas
 3) Antarctica
 4) Arctic Ocean
 5) Asia
 6) Atlantic Ocean
 7) Australia
 8) Europe
 9) Indian Ocean
10) Pacific Ocean
11) none - I want to specify the time zone using the Posix TZ format.
<strong>#? 2</strong>
Please select a country.
 1) Anguilla		     28) Haiti
 2) Antigua & Barbuda	     29) Honduras
 3) Argentina		     30) Jamaica
 4) Aruba		     31) Martinique
 5) Bahamas		     32) Mexico
 6) Barbados		     33) Montserrat
 7) Belize		     34) Nicaragua
 8) Bolivia		     35) Panama
 9) Brazil		     36) Paraguay
10) Canada		     37) Peru
11) Caribbean Netherlands    38) Puerto Rico
12) Cayman Islands	     39) St Barthelemy
13) Chile		     40) St Kitts & Nevis
14) Colombia		     41) St Lucia
15) Costa Rica		     42) St Maarten (Dutch part)
16) Cuba		     43) St Martin (French part)
17) Curacao		     44) St Pierre & Miquelon
18) Dominica		     45) St Vincent
19) Dominican Republic	     46) Suriname
20) Ecuador		     47) Trinidad & Tobago
21) El Salvador		     48) Turks & Caicos Is
22) French Guiana	     49) United States
23) Greenland		     50) Uruguay
24) Grenada		     51) Venezuela
25) Guadeloupe		     52) Virgin Islands (UK)
26) Guatemala		     53) Virgin Islands (US)
27) Guyana
<strong>#? 9</strong>
Please select one of the following time zone regions.
 1) Atlantic islands
 2) Amapa, E Para
 3) NE Brazil (MA, PI, CE, RN, PB)
 4) Pernambuco
 5) Tocantins
 6) Alagoas, Sergipe
 7) Bahia
 8) S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS)
 9) Mato Grosso do Sul
10) Mato Grosso
11) W Para
12) Rondonia
13) Roraima
14) E Amazonas
15) W Amazonas
16) Acre
<strong>#? 8</strong>

The following information has been given:

	Brazil
	S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS)

Therefore TZ='America/Sao_Paulo' will be used.
Local time is now:	Mon Oct 19 13:56:50 BRST 2015.
Universal Time is now:	Mon Oct 19 15:56:50 UTC 2015.
Is the above information OK?
1) Yes
2) No
<strong>#? 1</strong>

You can make this change permanent for yourself by appending the line
	TZ='America/Sao_Paulo'; export TZ
to the file '.profile' in your home directory; then log out and log in again.

Here is that TZ value again, this time on standard output so that you
can use the /usr/bin/tzselect command in shell scripts:
America/Sao_Paulo

# tzselect

Please identify a location so that time zone rules can be set correctly.

Please select a continent or ocean.

1) Africa

2) Americas

3) Antarctica

4) Arctic Ocean

5) Asia

6) Atlantic Ocean

7) Australia

8) Europe

9) Indian Ocean

10) Pacific Ocean

11) none - I want to specify the time zone using the Posix TZ format.

#? 2

Please select a country.

1) Anguilla 28) Haiti

2) Antigua & Barbuda 29) Honduras

3) Argentina 30) Jamaica

4) Aruba 31) Martinique

5) Bahamas 32) Mexico

6) Barbados 33) Montserrat

7) Belize 34) Nicaragua

8) Bolivia 35) Panama

9) Brazil 36) Paraguay

10) Canada 37) Peru

11) Caribbean Netherlands 38) Puerto Rico

12) Cayman Islands 39) St Barthelemy

13) Chile 40) St Kitts & Nevis

14) Colombia 41) St Lucia

15) Costa Rica 42) St Maarten (Dutch part)

16) Cuba 43) St Martin (French part)

17) Curacao 44) St Pierre & Miquelon

18) Dominica 45) St Vincent

19) Dominican Republic 46) Suriname

20) Ecuador 47) Trinidad & Tobago

21) El Salvador 48) Turks & Caicos Is

22) French Guiana 49) United States

23) Greenland 50) Uruguay

24) Grenada 51) Venezuela

25) Guadeloupe 52) Virgin Islands (UK)

26) Guatemala 53) Virgin Islands (US)

27) Guyana

#? 9

Please select one of the following time zone regions.

1) Atlantic islands

2) Amapa, E Para

3) NE Brazil (MA, PI, CE, RN, PB)

4) Pernambuco

5) Tocantins

6) Alagoas, Sergipe

7) Bahia

8) S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS)

9) Mato Grosso do Sul

10) Mato Grosso

11) W Para

12) Rondonia

13) Roraima

14) E Amazonas

15) W Amazonas

16) Acre

#? 8

The following information has been given:

Brazil

S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS)

Therefore TZ='America/Sao_Paulo' will be used.

Local time is now: Mon Oct 19 13:56:50 BRST 2015.

Universal Time is now: Mon Oct 19 15:56:50 UTC 2015.

Is the above information OK?

1) Yes

2) No

#? 1

You can make this change permanent for yourself by appending the line

TZ='America/Sao_Paulo'; export TZ

to the file '.profile' in your home directory; then log out and log in again.

Here is that TZ value again, this time on standard output so that you

can use the /usr/bin/tzselect command in shell scripts:

America/Sao_Paulo

Verifique a existência do arquivo “/etc/localtime” e seu apontamento, validando se esta apontando…

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OpenVPN Site-To-Client por usuário e senha no CentOS 7

31/01/2016 / jhonespetter

1 – Instalando pacotes e preparando o ambiente

[root@centos7 ~]# cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

1 2	[root@centos7 ~]# cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core)

[root@centos7 ~]# yum -y install epel-release

1	[root@centos7 ~]# yum -y install epel-release

[root@centos7 ~]# yum -y install openvpn easy-rsa

1	[root@centos7 ~]# yum -y install openvpn easy-rsa

[root@centos7 ~]# cp -Rfv /usr/share/easy-rsa/2.0/ /etc/openvpn/easy-rsa

1	[root@centos7 ~]# cp -Rfv /usr/share/easy-rsa/2.0/ /etc/openvpn/easy-rsa

[root@centos7 ~]# firewall-cmd --add-port=1194/udp --permanent
success
[root@centos7 ~]# firewall-cmd --reload
success
[root@centos7 ~]# firewall-cmd --list-port
1194/udp
[root@centos7 ~]# firewall-cmd --list-service
dhcpv6-client ssh

[root@centos7 ~]# firewall-cmd --add-port=1194/udp --permanent

success

[root@centos7 ~]# firewall-cmd --reload

success

[root@centos7 ~]# firewall-cmd --list-port

1194/udp

[root@centos7 ~]# firewall-cmd --list-service

dhcpv6-client ssh

2 – Gerando certificados CA/CA-SERVER/DH

[root@centos7 easy-rsa]# cd /etc/openvpn/easy-rsa/
[root@centos7 easy-rsa]# vi vars

# These are the default values for fields
# which will be placed in the certificate.
# Don't leave any of these fields blank.
export KEY_COUNTRY="BR"
export KEY_PROVINCE="SP"
export KEY_CITY="RIBEIRAOPRETO"
export KEY_ORG="JPCORP"
export KEY_EMAIL="JHONES@JPCORP.ETI.BR"
export KEY_OU="JPCORP"

# X509 Subject Field
export KEY_NAME="CA-JPCORP"

[root@centos7 easy-rsa]# cd /etc/openvpn/easy-rsa/

[root@centos7 easy-rsa]# vi vars

# These are the default values for fields

# which will be placed in the certificate.

# Don't leave any of these fields blank.

export KEY_COUNTRY="BR"

export KEY_PROVINCE="SP"

export KEY_CITY="RIBEIRAOPRETO"

export KEY_ORG="JPCORP"

export KEY_EMAIL="[email protected]"

export KEY_OU="JPCORP"

# X509 Subject Field

export KEY_NAME="CA-JPCORP"

[root@centos7 easy-rsa]# source ./vars
NOTE: If you run ./clean-all, I will be doing a rm -rf on /etc/openvpn/easy-rsa/keys

1 2	[root@centos7 easy-rsa]# source ./vars NOTE: If you run ./clean-all, I will be doing a rm -rf on /etc/openvpn/easy-rsa/keys

[root@centos7 easy-rsa]# ./clean-all

1	[root@centos7 easy-rsa]# ./clean-all

[root@centos7 easy-rsa]# ./build-ca
Generating a 2048 bit RSA private key
............................................+++
.........+++
writing new private key to 'ca.key'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [BR]:
State or Province Name (full name) [SP]:
Locality Name (eg, city) [RIBEIRAOPRETO]:
Organization Name (eg, company) [JPCORP]:
Organizational Unit Name (eg, section) [JPCORP]:
Common Name (eg, your name or your server's hostname) [JPCORP CA]:
Name [CA-JPCORP]:
Email Address [JHONES@JPCORP.ETI.BR]:

[root@centos7 easy-rsa]# ./build-ca

Generating a 2048 bit RSA private key

............................................+++

.........+++

writing new private key to 'ca.key'

-----

You are about to be asked to enter information that will be incorporated

into your certificate request.

What you are about to enter is what is called a Distinguished Name or a DN.

There are quite a few fields but you can leave some blank

For some fields there will be a default value,

If you enter '.', the field will be left blank.

-----

Country Name (2 letter code) [BR]:

State or Province Name (full name) [SP]:

Locality Name (eg, city) [RIBEIRAOPRETO]:

Organization Name (eg, company) [JPCORP]:

Organizational Unit Name (eg, section) [JPCORP]:

Common Name (eg, your name or your server's hostname) [JPCORP CA]:

Name [CA-JPCORP]:

Email Address [JHONES@JPCORP.ETI.BR]:

[root@centos7 easy-rsa]# ./build-key-server server
Generating a 2048 bit RSA private key
.........+++
...........+++
writing new private key to 'server.key'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [BR]:
State or Province Name (full name) [SP]:
Locality Name (eg, city) [RIBEIRAOPRETO]:
Organization Name (eg, company) [JPCORP]:
Organizational Unit Name (eg, section) [JPCORP]:
Common Name (eg, your name or your server's hostname) [server]:
Name [CA-JPCORP]:
Email Address [JHONES@JPCORP.ETI.BR]:

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
Using configuration from /etc/openvpn/easy-rsa/openssl-1.0.0.cnf
Check that the request matches the signature
Signature ok
The Subject's Distinguished Name is as follows
countryName           :PRINTABLE:'BR'
stateOrProvinceName   :PRINTABLE:'SP'
localityName          :PRINTABLE:'RIBEIRAOPRETO'
organizationName      :PRINTABLE:'JPCORP'
organizationalUnitName:PRINTABLE:'JPCORP'
commonName            :PRINTABLE:'server'
name                  :PRINTABLE:'CA-JPCORP'
emailAddress          :IA5STRING:'JHONES@JPCORP.ETI.BR'
Certificate is to be certified until Jan 28 23:35:47 2026 GMT (3650 days)
Sign the certificate? [y/n]:y


1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated

[root@centos7 easy-rsa]# ./build-key-server server

Generating a 2048 bit RSA private key

.........+++

...........+++

writing new private key to 'server.key'

-----

You are about to be asked to enter information that will be incorporated

into your certificate request.

What you are about to enter is what is called a Distinguished Name or a DN.

There are quite a few fields but you can leave some blank

For some fields there will be a default value,

If you enter '.', the field will be left blank.

-----

Country Name (2 letter code) [BR]:

State or Province Name (full name) [SP]:

Locality Name (eg, city) [RIBEIRAOPRETO]:

Organization Name (eg, company) [JPCORP]:

Organizational Unit Name (eg, section) [JPCORP]:

Common Name (eg, your name or your server's hostname) [server]:

Name [CA-JPCORP]:

Email Address [JHONES@JPCORP.ETI.BR]:

Please enter the following 'extra' attributes

to be sent with your certificate request

A challenge password []:

An optional company name []:

Using configuration from /etc/openvpn/easy-rsa/openssl-1.0.0.cnf

Check that the request matches the signature

Signature ok

The Subject's Distinguished Name is as follows

countryName :PRINTABLE:'BR'

stateOrProvinceName :PRINTABLE:'SP'

localityName :PRINTABLE:'RIBEIRAOPRETO'

organizationName :PRINTABLE:'JPCORP'

organizationalUnitName:PRINTABLE:'JPCORP'

commonName :PRINTABLE:'server'

name :PRINTABLE:'CA-JPCORP'

emailAddress :IA5STRING:'[email protected]'

Certificate is to be certified until Jan 28 23:35:47 2026 GMT (3650 days)

Sign the certificate? [y/n]:y

1 out of 1 certificate requests certified, commit? [y/n]y

Write out database with 1 new entries

Data Base Updated

[root@centos7 easy-rsa]# ./build-dh
Generating DH parameters, 2048 bit long safe prime, generator 2
................+............

[root@centos7 easy-rsa]# ./build-dh

Generating DH parameters, 2048 bit long safe prime, generator 2

................+............

[root@centos7 easy-rsa]# ll keys/
total 52
-rw-r--r-- 1 root root 5492 Jan 31 20:35 01.pem
-rw-r--r-- 1 root root 1732 Jan 31 20:35 ca.crt
-rw------- 1 root root 1704 Jan 31 20:35 ca.key
-rw-r--r-- 1 root root  424 Jan 31 20:39 dh2048.pem
-rw-r--r-- 1 root root  134 Jan 31 20:35 index.txt
-rw-r--r-- 1 root root   21 Jan 31 20:35 index.txt.attr
-rw-r--r-- 1 root root    0 Jan 31 20:35 index.txt.old
-rw-r--r-- 1 root root    3 Jan 31 20:35 serial
-rw-r--r-- 1 root root    3 Jan 31 20:35 serial.old
-rw-r--r-- 1 root root 5492 Jan 31 20:35 server.crt
-rw-r--r-- 1 root root 1078 Jan 31 20:35 server.csr
-rw------- 1 root root 1708 Jan 31 20:35 server.key

[root@centos7 easy-rsa]# ll keys/

total 52

-rw-r--r-- 1 root root 5492 Jan 31 20:35 01.pem

-rw-r--r-- 1 root root 1732 Jan 31 20:35 ca.crt

-rw------- 1 root root 1704 Jan 31 20:35 ca.key

-rw-r--r-- 1 root root 424 Jan 31 20:39 dh2048.pem

-rw-r--r-- 1 root root 134 Jan 31 20:35 index.txt

-rw-r--r-- 1 root root 21 Jan 31 20:35 index.txt.attr

-rw-r--r-- 1 root root 0 Jan 31 20:35 index.txt.old

-rw-r--r-- 1 root root 3 Jan 31 20:35 serial

-rw-r--r-- 1 root root 3 Jan 31 20:35 serial.old

-rw-r--r-- 1 root root 5492 Jan 31 20:35 server.crt

-rw-r--r-- 1 root root 1078 Jan 31 20:35 server.csr

-rw------- 1 root root 1708 Jan 31 20:35 server.key

[root@centos7 easy-rsa]# cd ..
[root@centos7 openvpn]# ln -s /etc/openvpn/easy-rsa/keys/ /etc/openvpn/ca-server

1 2	[root@centos7 easy-rsa]# cd .. [root@centos7 openvpn]# ln -s /etc/openvpn/easy-rsa/keys/ /etc/openvpn/ca-server

3 – Criando o .conf

[root@centos7 openvpn]# vi site-to-client.conf

port 1194
proto udp
dev tun
ca /etc/openvpn/ca-server/ca.crt
cert /etc/openvpn/ca-server/server.crt
key /etc/openvpn/ca-server/server.key
dh /etc/openvpn/ca-server/dh2048.pem
ifconfig-pool-persist /var/log/ipp_site-to-client.log
;push "route 172.16.1.1 255.255.255.0"
client-cert-not-required
tls-server
username-as-common-name
server 10.10.10.0 255.255.255.0
keepalive 10 120
comp-lzo
user nobody
group nobody
plugin /usr/lib64/openvpn/plugins/openvpn-plugin-auth-pam.so login
persist-key
persist-tun
status /var/log/status_site-to-client.log
log-append /var/log/site-to-client.log
verb 3

[root@centos7 openvpn]# vi site-to-client.conf

port 1194

proto udp

dev tun

ca /etc/openvpn/ca-server/ca.crt

cert /etc/openvpn/ca-server/server.crt

key /etc/openvpn/ca-server/server.key

dh /etc/openvpn/ca-server/dh2048.pem

ifconfig-pool-persist /var/log/ipp_site-to-client.log

;push "route 172.16.1.1 255.255.255.0"

client-cert-not-required

tls-server

username-as-common-name

server 10.10.10.0 255.255.255.0

keepalive 10 120

comp-lzo

user nobody

group nobody

plugin /usr/lib64/openvpn/plugins/openvpn-plugin-auth-pam.so login

persist-key

persist-tun

status /var/log/status_site-to-client.log

log-append /var/log/site-to-client.log

verb 3

4 – Ativando o serviço, o @site-to-client deve ser o mesmo nome do arquivo .conf criado, aqui neste caso site-to-client.conf

[root@centos7 openvpn]# systemctl enable openvpn@site-to-client
Created symlink from /etc/systemd/system/multi-user.target.wants/openvpn@site-to-client.service to /usr/lib/systemd/system/openvpn@.service.
[root@centos7 openvpn]# systemctl start openvpn@site-to-client
[root@centos7 openvpn]# systemctl status openvpn@site-to-client
● openvpn@site-to-client.service - OpenVPN Robust And Highly Flexible Tunneling Application On site/to/client
   Loaded: loaded (/usr/lib/systemd/system/openvpn@.service; enabled; vendor preset: disabled)
   Active: active (running) since Dom 2016-01-31 20:45:09 BRT; 4s ago
  Process: 1795 ExecStart=/usr/sbin/openvpn --daemon --writepid /var/run/openvpn/%i.pid --cd /etc/openvpn/ --config %i.conf (code=exited, status=0/SUCCESS)
 Main PID: 1796 (openvpn)
   CGroup: /system.slice/system-openvpn.slice/openvpn@site-to-client.service
           ├─1796 /usr/sbin/openvpn --daemon --writepid /var/run/openvpn/site-to-client.pid --cd /etc/openvpn/ --config site-to-cli...
           └─1797 /usr/sbin/openvpn --daemon --writepid /var/run/openvpn/site-to-client.pid --cd /etc/openvpn/ --config site-to-cli...

Jan 31 20:45:09 centos7 systemd[1]: Starting OpenVPN Robust And Highly Flexible Tunneling Application On site/to/client...
Jan 31 20:45:09 centos7 systemd[1]: PID file /var/run/openvpn/site-to-client.pid not readable (yet?) after start.
Jan 31 20:45:09 centos7 systemd[1]: Started OpenVPN Robust And Highly Flexible Tunneling Application On site/to/client.

[root@centos7 openvpn]# systemctl enable openvpn@site-to-client

Created symlink from /etc/systemd/system/multi-user.target.wants/openvpn@site-to-client.service to /usr/lib/systemd/system/openvpn@.service.

[root@centos7 openvpn]# systemctl start openvpn@site-to-client

[root@centos7 openvpn]# systemctl status openvpn@site-to-client

● openvpn@site-to-client.service - OpenVPN Robust And Highly Flexible Tunneling Application On site/to/client

Loaded: loaded (/usr/lib/systemd/system/openvpn@.service; enabled; vendor preset: disabled)

Active: active (running) since Dom 2016-01-31 20:45:09 BRT; 4s ago

Process: 1795 ExecStart=/usr/sbin/openvpn --daemon --writepid /var/run/openvpn/%i.pid --cd /etc/openvpn/ --config %i.conf (code=exited, status=0/SUCCESS)

Main PID: 1796 (openvpn)

CGroup: /system.slice/system-openvpn.slice/openvpn@site-to-client.service

├─1796 /usr/sbin/openvpn --daemon --writepid /var/run/openvpn/site-to-client.pid --cd /etc/openvpn/ --config site-to-cli...

└─1797 /usr/sbin/openvpn --daemon --writepid /var/run/openvpn/site-to-client.pid --cd /etc/openvpn/ --config site-to-cli...

Jan 31 20:45:09 centos7 systemd[1]: Starting OpenVPN Robust And Highly Flexible Tunneling Application On site/to/client...

Jan 31 20:45:09 centos7 systemd[1]: PID file /var/run/openvpn/site-to-client.pid not readable (yet?) after start.

Jan 31 20:45:09 centos7 systemd[1]: Started OpenVPN Robust And Highly Flexible Tunneling Application On site/to/client.

5 -…

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Linux – Pacotes essenciais CentOS 7

05/01/2016 / jhonespetter

1 – Epel-Release Epel-Release é um repositorio extra para o CentOS onde agrega mais um emaranhado de pacotes:

[root@storage packaging]# yum search epel-release
Plugins carregados: fastestmirror
Loading mirror speeds from cached hostfile
 * base: centos.xpg.com.br
 * epel: mirror.globo.com
 * extras: centos.xpg.com.br
 * updates: centos.xpg.com.br
======================================================= N/S matched: epel-release =======================================================
epel-release.noarch : Extra Packages for Enterprise Linux repository configuration

[root@storage packaging]# yum search epel-release

Plugins carregados: fastestmirror

Loading mirror speeds from cached hostfile

* base: centos.xpg.com.br

* epel: mirror.globo.com

* extras: centos.xpg.com.br

* updates: centos.xpg.com.br

======================================================= N/S matched: epel-release =======================================================

epel-release.noarch : Extra Packages for Enterprise Linux repository configuration

2 – Net-Tools Após instalar o CentOS a primeira pergunta: cade o comando ifconfig? para isso instale o pacote net-tools:

[root@storage packaging]# yum search net-tools
Plugins carregados: fastestmirror
Loading mirror speeds from cached hostfile
 * base: centos.xpg.com.br
 * epel: mirror.globo.com
 * extras: centos.xpg.com.br
 * updates: centos.xpg.com.br
======================================================== N/S matched: net-tools =========================================================
net-tools.x86_64 : Basic networking tools

[root@storage packaging]# yum search net-tools

Plugins carregados: fastestmirror

Loading mirror speeds from cached hostfile

* base: centos.xpg.com.br

* epel: mirror.globo.com

* extras: centos.xpg.com.br

* updates: centos.xpg.com.br

======================================================== N/S matched: net-tools =========================================================

net-tools.x86_64 : Basic networking tools

3 – Bind-Utils Algumas ferramentas para auxiliar num troubleshooting de rede é o bind-utils onde…

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Linux – Brincando com LVM

07/12/2015 / jhonespetter

O que é LVM? Logical Volume Manager ou Gerenciador de Volume Lógico, em palavras limpas acima do disco físico temos uma partição física que acima temos um grupo de volume e acima o volume lógico onde são armazenados os dados (creio que conseguiu abstrair essas informações em forma de desenho na sua mente, se não…

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Aplicando Coaching

24/10/2015 / jhonespetter

Sempre que lembramos em abertura de chamado nos call centers das operadoras de telefonia já vem uma angustia de ficar minutos, horas escutando “mais um momento, só mais um momento”, ou a ligação cair com 40, 90 minutos pendurado junto a telefonista e ela não retornar. Sim realmente é cansativo e estressante e já passei…

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Gestão de Telecom

11/10/2015 / jhonespetter

Gestão é o ato ou efeito de gerir, administrar, conduzir. Foi que então agregaram ao meu escopo de funções gerir contas, contratos e suporte aos serviços de telecom sendo telefonia fixa e móvel. Ai pensei o suporte é tranquilo, telefonia fixa sem novidade, mas e a móvel? Ao começar analisar o ambiente de imediato levei…

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Compilando Kernel CentOS

03/10/2015 / jhonespetter

Instalando Instant Client Oracle

08/09/2015 / jhonespetter

Instalando o Instant Client Oracle no Windows 1 – Download http://www.oracle.com/technetwork/topics/winsoft-085727.html 2 – Extrair o pacote e jogar em “C:\oracle” 3 – Colocar o “tnsnames.ora” com as configurações do seu banco dentro da pasta “C:\oracle” 4 – Para adicionar as variáveis irei mostrar via CMD, porém pode ser criada pelas “Configurações avançadas do sistema” Aqui…

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Instalando Skype Fedora 22

07/09/2015 / jhonespetter

Recentemente migrei meu desktop do Ubuntu para o “Fedora Mate Desktop” (Pow Gnome 2 é o melhor (8), ao instalar o Skype peguei pra subir o pacote na unha, abaixo o passo a passo que executei. Download do pacote:

 cd /tmp && wget http://download.skype.com/linux/skype-4.3.0.37.tar.bz2

1	cd /tmp && wget http://download.skype.com/linux/skype-4.3.0.37.tar.bz2

Descompactar e colocar o pacote dentro de “/opt”:

tar -jxvf skype-4.3.0.37.tar.bz2
mv skype-4.3.0.37 /opt/

1 2	tar -jxvf skype-4.3.0.37.tar.bz2 mv skype-4.3.0.37 /opt/

Criar links para o…

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Um pouco sobre o Systemd

25/08/2015 / jhonespetter

Trago aqui um vídeo explanando um pouco sobre o Systemd e suas diferenças entre o SystemV.