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How To Install The Latest Git On Ubuntu 14.04

How To Install The Latest Git On Ubuntu 14.04

This tutorial explains the process of installing Git on Ubuntu 14.04. For the uninitiated, Git, the client for the immensely popular GitHub, is a commonly used open source distributed version control system that was originally developed by Linus Torvalds with the objective of supporting Linux Kernel development.

PHP number_format() and a problem with negative values rounded to zero

PHP number_format() and a problem with negative values rounded to Zero

As is known, the PHP function number_format() rounds the given value to the needed amount of decimal places.

Securing SSH On Redhat/Centos With WiKID Two-Factor Authentication

Securing SSH On Ubuntu With WiKID Two-Factor Authentication

SSH offers a highly secure channel for remote administration of servers. However, if you face an audit for regulatory or business requirements, such as Visa/Mastercard PCI, you need to be aware of some potential authentication related short-comings that may cause headaches in an audit.

How to find outdated joomla versions on your server to reduce the risk of being hacked

Today I want to focus on a topic that can lead to huge problems of hacked accounts, spam mailings etc.: Outdated Joomla installations on your server.

Of course, this is valid for other software, too. The mentioned method should work in a similar way for other software. Since Joomla is widely spread throughout the internet, especially on shared hosting systems CMS (Content Management System), this howto will only cover Joomla so far.

How To Set Up Multi-Master Replication Using Tungsten And MySQL-Proxy For MySQL High Availability On Ubuntu 10.04.3 LTS

How To Set Up Multi-Master Replication Using Tungsten And MySQL-Proxy For MySQL High Availability On Ubuntu 10.04.3 LTS

This tutorial is based on my experience setting up Tungsten Replicator and MySQL-Proxy for a client's production setup.

Ubuntu 11.10 + saslauthd: SASL PLAIN authentication failed: no mechanism available

Error: Ubuntu 11.10 + saslauthd: SASL PLAIN authentication failed: no mechanism available

You have installed Postfix with saslauthd on Ubuntu 11.10 and get the following error in /var/log/mail.log when you try to send an email:

server1 postfix/smtpd[7868]: warning: unknown[1.2.3.4]: SASL PLAIN authentication failed: no mechanism available

Fedora 15 - Error: Package: glibc-2.14-5.i686 (updates) Requires: glibc-common = 2.14-5

Error: Fedora 15 - Error: Package: glibc-2.14-5.i686 (updates) Requires: glibc-common = 2.14-5

You get an error like the following one on Fedora 15:

Error: Package: glibc-2.14-5.i686 (updates)
Requires: glibc-common = 2.14-5
Installed: glibc-common-2.14-7.x86_64 (@updates-testing)
glibc-common = 2.14-7
Available: glibc-common-2.13.90-9.x86_64 (fedora)
glibc-common = 2.13.90-9
Available: glibc-common-2.14-5.x86_64 (updates)
glibc-common = 2.14-5
You could try using --skip-broken to work around the problem
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
nss_db-2.2.3-0.5.pre1.fc15.x86_64 has missing requires of libc.so.6(GLIBC_PRIVATE)(64bit)
nss_db-2.2.3-0.5.pre1.fc15.x86_64 has missing requires of libnss_files.so.2(GLIBC_PRIVATE)(64bit)

Debian/Ubuntu - unable to make backup link of `./usr/sbin/sshd' before installing new version: Operation not permitted

Error: Debian/Ubuntu - unable to make backup link of `./usr/sbin/sshd' before installing new version: Operation not permitted

You try to upgrade OpenSSH on Debian/Ubuntu (packages openssh-client and openssh-server) and get the following errors:

Unpacking replacement openssh-server ...
dpkg: error processing /var/cache/apt/archives/openssh-server_1%3a5.5p1-6_amd64.deb (--unpack):
unable to make backup link of `./usr/sbin/sshd' before installing new version: Operation not permitted
configured to not write apport reports
Preparing to replace openssh-client 1:5.1p1-5 (using .../openssh-client_1%3a5.5p1-6_amd64.deb) ...
Unpacking replacement openssh-client ...
dpkg: error processing /var/cache/apt/archives/openssh-client_1%3a5.5p1-6_amd64.deb (--unpack):
unable to make backup link of `./usr/bin/ssh' before installing new version: Operation not permitted

CentOS 5.6/Dovecot - Fatal: listen(::, 143) failed: Address already in use

Error: CentOS 5.6/Dovecot - Fatal: listen(::, 143) failed: Address already in use

You try to start Dovecot on CentOS 5.6 and get the following error:

Fatal: listen(::, 143) failed: Address already in use

Postfix/Greyfix - warning: problem talking to server private/greyfix: No such file or directory

Error: Postfix/Greyfix - warning: problem talking to server private/greyfix: No such file or directory

You get the following error in your mail log:

Aug 26 16:20:00 server1 postfix/smtpd[8471]: warning: problem talking to server private/greyfix: No such file or directory

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