I am trying to install (yum install git) but at the end it throws me an error that is: Error: Package: git-1.7.12.4-1.el5.rf.x86_64 (rpmforge)            Requires: libcurl.so.3 () (64bit)I want to install (git clone https://github.com/letsencrypt/letsencrypt) but I can not continue after the error.Then run (yum list --showduplicates libcurl \ *) to see what I have installed and this is what appears to me.Loaded plugins: fastestmirrorLoading mirror speeds from cached hostfile * atomic: mirror1.34sp.com * base: mirror.ratiokontakt.de * epel: mirrors.n-ix.net * extras: centos.datente.com * rpmforge: mirror.de.leaseweb.net * updates: centosmirror.netcup.netInstalled Packageslibcurl.x86_64                                                              7.19.7-37.el6_4                                                        @updatesAvailable Packageslibcurl.i686                                                                7.19.7-46.el6                                                          base    libcurl.x86_64                                                              7.19.7-46.el6                                                          base    libcurl-devel.i686                                                          7.19.7-46.el6                                                          base    libcurl-devel.x86_64                                                        7.19.7-46.el6    My server is a:CentOS release 6.5 (Final)Linux server x86_64 x86_64 x86_64 GNU/LinuxCan someone help me please? If I have to erase or delete it or be able to fix this? 
Requires: libcurl.so.3()(64bit)
centos