--- doc/install/linux/install.pl 2011/10/25 02:03:16 1.23 +++ doc/install/linux/install.pl 2017/05/26 02:18:11 1.42 @@ -72,7 +72,7 @@ if (!open(LOG,">>loncapa_install.log")) &mt('Stopping execution.')."\n"; exit; } else { - print LOG '$Id: install.pl,v 1.23 2011/10/25 02:03:16 raeburn Exp $'."\n"; + print LOG '$Id: install.pl,v 1.42 2017/05/26 02:18:11 raeburn Exp $'."\n"; } # @@ -320,6 +320,26 @@ sub check_locale { '/etc/sysconfig/language'); } $langvar = 'RC_LANG'; + } elsif ($distro =~ /^fedora(\d+)/) { + if ($1 >= 18) { + if (!open($fh,"= 7) { + if (!open($fh,"; chomp(@data); foreach my $item (@data) { - if ($item =~ /^\Q$langvar\E=\"([^\"]*)\"/) { + if ($item =~ /^\Q$langvar\E=\"?([^\"]*)\"?/) { my $default = $1; if ($default ne 'en_US.UTF-8') { if ($distro =~ /^debian/) { - $command = 'dpkg-reconfigure locales'; + $command = 'locale-gen en_US.UTF-8'."\n". + 'update-locale LANG=en_US.UTF-8'; } elsif ($distro =~ /^ubuntu/) { - $command = 'sudo set-language-env -E'; + $command = 'sudo locale-gen en_US.UTF-8'."\n". + 'sudo update-locale LANG=en_US.UTF-8'; } elsif ($distro =~ /^(suse|sles)/) { $command = 'yast language'; } else { @@ -363,8 +385,8 @@ sub check_required { unless ($localecmd eq '') { return ($distro,$gotprereqs,$localecmd); } - my ($mysqlon,$mysqlsetup,$dbh,$has_pass,$has_lcdb,%recommended,$downloadstatus, - $filetouse,$production,$testing,$apachefw,$tostop); + my ($mysqlon,$mysqlsetup,$mysqlrestart,$dbh,$has_pass,$has_lcdb,%recommended, + $downloadstatus,$filetouse,$production,$testing,$apachefw,$tostop,$uses_systemctl); my $wwwuid = &uid_of_www(); my $wwwgid = getgrnam('www'); if (($wwwuid eq '') || ($wwwgid eq '')) { @@ -376,31 +398,40 @@ sub check_required { $mysqlon = &check_mysql_running($distro); if ($mysqlon) { my $mysql_has_wwwuser = &check_mysql_wwwuser(); - ($mysqlsetup,$has_pass,$dbh) = - &check_mysql_setup($instdir,$dsn); - if ($mysqlsetup eq 'noroot') { - $recommended{'mysqlperms'} = 1; + ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser) = + &check_mysql_setup($instdir,$dsn,$distro,$mysql_has_wwwuser); + if ($mysqlsetup eq 'needsrestart') { + $mysqlrestart = ''; + if ($distro eq 'ubuntu') { + $mysqlrestart = 'sudo '; + } + $mysqlrestart .= 'service mysql restart'; + return ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,$mysqlrestart); } else { - unless ($mysql_has_wwwuser) { + if ($mysqlsetup eq 'noroot') { $recommended{'mysqlperms'} = 1; + } else { + unless ($mysql_has_wwwuser) { + $recommended{'mysqlperms'} = 1; + } + } + if ($dbh) { + $has_lcdb = &check_loncapa_mysqldb($dbh); + } + unless ($has_lcdb) { + $recommended{'mysql'} = 1; } - } - if ($dbh) { - $has_lcdb = &check_loncapa_mysqldb($dbh); - } - unless ($has_lcdb) { - $recommended{'mysql'} = 1; } } ($recommended{'firewall'},$apachefw) = &chkfirewall($distro); - ($recommended{'runlevels'},$tostop) = &chkconfig($distro,$instdir); + ($recommended{'runlevels'},$tostop,$uses_systemctl) = &chkconfig($distro,$instdir); $recommended{'apache'} = &chkapache($distro,$instdir); $recommended{'stopsrvcs'} = &chksrvcs($distro,$tostop); ($recommended{'download'},$downloadstatus,$filetouse,$production,$testing) = &need_download(); return ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow, - \%recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus, - $filetouse,$production,$testing,$apachefw); + $mysqlrestart,\%recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus, + $filetouse,$production,$testing,$apachefw,$uses_systemctl); } sub check_mysql_running { @@ -417,15 +448,34 @@ sub check_mysql_running { $process = 'mysqld'; $proc_owner = 'mysql'; } - } - if ($distro =~ /^fedora(\d+)/) { + } elsif ($distro =~ /^fedora(\d+)/) { if ($1 >= 16) { $process = 'mysqld'; $proc_owner = 'mysql'; $use_systemctl = 1; } + if ($1 >= 19) { + $mysqldaemon ='mariadb'; + } + } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) { + if ($1 >= 7) { + $mysqldaemon ='mariadb'; + $process = 'mysqld'; + $proc_owner = 'mysql'; + $use_systemctl = 1; + } + } elsif ($distro =~ /^sles(\d+)/) { + if ($1 >= 12) { + $use_systemctl = 1; + $proc_owner = 'mysql'; + $process = 'mysqld'; + } + } elsif ($distro =~ /^suse(\d+)/) { + if ($1 >= 13) { + $use_systemctl = 1; + } } - if (open(PIPE,"ps -ef |grep $process |grep -v grep 2>&1 |")) { + if (open(PIPE,"ps -ef |grep $process |grep ^$proc_owner |grep -v grep 2>&1 |")) { my $status = ; close(PIPE); chomp($status); @@ -493,6 +543,20 @@ sub chkconfig { if ($distro =~ /^(suse|sles)9/) { $daemon{'apache'} = 'apache'; } + if ($distro =~ /^(suse|sles)([\d\.]+)/) { + my $name = $1; + my $num = $2; + if ($num > 11) { + $uses_systemctl{'apache'} = 1; + if (($name eq 'sles') || ($name eq 'suse' && $num >= 13.2)) { + $uses_systemctl{'mysql'} = 1; + $uses_systemctl{'ntp'} = 1; + $uses_systemctl{'cups'} = 1; + $uses_systemctl{'memcached'} = 1; + $daemon{'ntp'} = 'ntpd'; + } + } + } } elsif ($distro =~ /^(?:debian|ubuntu)(\d+)/) { my $version = $1; @runlevels = qw/2 3 4 5/; @@ -504,7 +568,7 @@ sub chkconfig { if (($distro =~ /^ubuntu/) && ($version <= 8)) { $daemon{'cups'} = 'cupsys'; } - } elsif ($distro =~ /^(?:fedora)(\d+)/) { + } elsif ($distro =~ /^fedora(\d+)/) { my $version = $1; if ($version >= 15) { $uses_systemctl{'ntp'} = 1; @@ -512,6 +576,21 @@ sub chkconfig { if ($version >= 16) { $uses_systemctl{'mysql'} = 1; $uses_systemctl{'apache'} = 1; + $uses_systemctl{'memcached'} = 1; + $uses_systemctl{'cups'} = 1; + } + if ($version >= 19) { + $daemon{'mysql'} = 'mariadb'; + } + } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) { + my $version = $1; + if ($version >= 7) { + $uses_systemctl{'ntp'} = 1; + $uses_systemctl{'mysql'} = 1; + $uses_systemctl{'apache'} = 1; + $uses_systemctl{'memcached'} = 1; + $uses_systemctl{'cups'} = 1; + $daemon{'mysql'} = 'mariadb'; } } my $nocheck; @@ -534,13 +613,18 @@ sub chkconfig { foreach my $type ('apache','mysql','ntp','cups','memcached') { my $service = $daemon{$type}; if ($uses_systemctl{$type}) { - if (!-l "/etc/systemd/system/multi-user.target.wants/$service.service") { - $needfix{$type} = "systemctl enable $service.service"; + if (($type eq 'memcached') || ($type eq 'cups')) { + if (-l "/etc/systemd/system/multi-user.target.wants/$service.service") { + $tostop{$type} = 1; + } + } else { + if (!-l "/etc/systemd/system/multi-user.target.wants/$service.service") { + $needfix{$type} = "systemctl enable $service.service"; + } } - next; } else { my $command = $checker_bin.' --list '.$service.' 2>/dev/null'; - if ($type eq 'cups') { + if ($type eq 'cups') { if ($distro =~ /^(?:debian|ubuntu)(\d+)/) { my $version = $1; if (($distro =~ /^ubuntu/) && ($version <= 8)) { @@ -597,7 +681,7 @@ sub chkconfig { } } } - return (\%needfix,\%tostop); + return (\%needfix,\%tostop,\%uses_systemctl); } sub chkfirewall { @@ -639,17 +723,47 @@ sub chkfirewall { sub chkapache { my ($distro,$instdir) = @_; my $fixapache = 1; - if ($distro =~ /^(debian|ubuntu)/) { - if (!-e "$instdir/debian-ubuntu/loncapa") { + if ($distro =~ /^(debian|ubuntu)(\d+)$/) { + my $distname = $1; + my $version = $2; + my ($stdconf,$stdsite); + if (($distname eq 'ubuntu') && ($version > 12)) { + $stdconf = "$instdir/debian-ubuntu/ubuntu14/loncapa_conf"; + $stdsite = "$instdir/debian-ubuntu/ubuntu14/loncapa_sites"; + } else { + $stdconf = "$instdir/debian-ubuntu/loncapa"; + } + if (!-e $stdconf) { $fixapache = 0; print &mt('Warning: No LON-CAPA Apache configuration file found for installation check.')."\n"; - } elsif ((-e "/etc/apache2/sites-available/loncapa") && (-e "$instdir/debian-ubuntu/loncapa")) { - if (open(PIPE, "diff --brief $instdir/debian-ubuntu/loncapa /etc/apache2/sites-available/loncapa |")) { - my $diffres = ; - close(PIPE); - chomp($diffres); - unless ($diffres) { - $fixapache = 0; + } else { + my ($configfile,$sitefile); + if (($distname eq 'ubuntu') && ($version > 12)) { + $sitefile = '/etc/apache2/sites-available/loncapa'; + $configfile = "/etc/apache2/conf-available/loncapa"; + } else { + $configfile = "/etc/apache2/sites-available/loncapa"; + } + if (($configfile ne '') && (-e $configfile) && (-e $stdconf)) { + if (open(PIPE, "diff --brief $stdconf $configfile |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + unless ($diffres) { + $fixapache = 0; + } + } + } + if ((!$fixapache) && ($distname eq 'ubuntu') && ($version > 12)) { + if (($sitefile ne '') && (-e $sitefile) && (-e $stdsite)) { + if (open(PIPE, "diff --brief $stdsite $sitefile |")) { + my $diffres = ; + close(PIPE); + chomp($diffres); + unless ($diffres) { + $fixapache = 0; + } + } } } } @@ -695,11 +809,15 @@ sub chkapache { } else { my $configfile = 'httpd.conf'; if ($distro =~ /^(?:centos|rhes|scientific)(\d+)$/) { - if ($1 > 5) { + if ($1 >= 7) { + $configfile = 'apache2.4/httpd.conf'; + } elsif ($1 > 5) { $configfile = 'new/httpd.conf'; } } elsif ($distro =~ /^fedora(\d+)$/) { - if ($1 > 10) { + if ($1 > 17) { + $configfile = 'apache2.4/httpd.conf'; + } elsif ($1 > 10) { $configfile = 'new/httpd.conf'; } } @@ -845,13 +963,36 @@ sub need_download { } sub check_mysql_setup { - my ($instdir,$dsn) = @_; + my ($instdir,$dsn,$distro,$mysql_has_wwwuser) = @_; my ($mysqlsetup,$has_pass); my $dbh = DBI->connect($dsn,'root','',{'PrintError'=>0}); if ($dbh) { $mysqlsetup = 'noroot'; } elsif ($DBI::err =~ /1045/) { $has_pass = 1; + } elsif ($distro =~ /^ubuntu(\d+)$/) { + my $version = $1; + if ($1 > 12) { + print_and_log(&mt('Restarting mysql, please be patient')."\n"); + if (open (PIPE, "service mysql restart 2>&1 |")) { + while () { + print $_; + } + close(PIPE); + } + unless ($mysql_has_wwwuser) { + $mysql_has_wwwuser = &check_mysql_wwwuser(); + } + $dbh = DBI->connect($dsn,'root','',{'PrintError'=>0}); + if ($dbh) { + $mysqlsetup = 'noroot'; + } elsif ($DBI::err =~ /1045/) { + $has_pass = 1; + } else { + $mysqlsetup = 'needsrestart'; + return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser); + } + } } if ($has_pass) { print &mt('You have already set a root password for the MySQL database.')."\n"; @@ -878,11 +1019,11 @@ sub check_mysql_setup { } } } - } elsif ($mysqlsetup ne 'noroot') { + } elsif ($mysqlsetup ne 'noroot') { print_and_log(&mt('Problem accessing MySQL.')."\n"); $mysqlsetup = 'rootfail'; } - return ($mysqlsetup,$has_pass,$dbh); + return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser); } sub check_mysql_wwwuser { @@ -1138,9 +1279,9 @@ my %prompts = &texthash( print "\n".&mt('Checking system status ...')."\n"; my $dsn = "DBI:mysql:database=mysql"; -my ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,$recommended, - $dbh,$has_pass,$has_lcdb,$downloadstatus,$filetouse,$production, - $testing,$apachefw) = &check_required($instdir,$dsn); +my ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,$mysqlrestart, + $recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus,$filetouse,$production, + $testing,$apachefw,$uses_systemctl) = &check_required($instdir,$dsn); if ($distro eq '') { print "\n".&mt('Linux distribution could not be verified as a supported distribution.')."\n". &mt('The following are supported: [_1].', @@ -1149,6 +1290,13 @@ if ($distro eq '') { &mt('Stopping execution.')."\n"; exit; } +if ($mysqlrestart) { + print "\n".&mt('The mysql daemon needs to be restarted using the following command:')."\n". + $mysqlrestart."\n\n". + &mt('Stopping execution of install.pl script.')."\n". + &mt('Please run the install.pl script again, once you have restarted mysql.')."\n"; + exit; +} if ($localecmd ne '') { print "\n".&mt('Although the LON-CAPA application itself is localized for a number of different languages, the default locale language for the Linux OS on which it runs should be US English.')."\n"; print "\n".&mt('Run the following command from the command line to set the default language for your OS, and then run this LON-CAPA installation set-up script again.')."\n\n". @@ -1176,8 +1324,8 @@ if (!$gotprereqs) { exit; } else { ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow, - $recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus, - $filetouse,$production,$testing,$apachefw) = + $mysqlrestart,$recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus, + $filetouse,$production,$testing,$apachefw,$uses_systemctl) = &check_required($instdir,$dsn); } } else { @@ -1303,7 +1451,7 @@ if ($callsub{'apache'}) { if ($distro =~ /^(suse|sles)/) { ©_apache2_suseconf($instdir); } elsif ($distro =~ /^(debian|ubuntu)/) { - ©_apache2_debconf($instdir); + ©_apache2_debconf($instdir,$distro); } else { ©_httpd_conf($instdir,$distro); } @@ -1592,7 +1740,17 @@ sub kill_extra_services { if ($distro =~ /^(debian|ubuntu)/) { &print_and_log(`update-rc.d -f $daemon remove`); } else { - &print_and_log(`/sbin/chkconfig --del $service`); + if (ref($uses_systemctl) eq 'HASH') { + if ($uses_systemctl->{$service}) { + if (`systemctl is-enabled $service`) { + &print_and_log(`systemctl disable $service`); + } + } else { + &print_and_log(`/sbin/chkconfig --del $service`); + } + } else { + &print_and_log(`/sbin/chkconfig --del $service`); + } } } } @@ -1630,8 +1788,29 @@ CREATE TABLE IF NOT EXISTS metadata (tit sub setup_mysql_permissions { my ($dbh,$has_pass,@mysql_lc_commands) = @_; - my $mysqlversion = &get_mysql_version(); - my @mysql_commands = ("INSERT user (Host, User, Password) VALUES('localhost','www',password('localhostkey'));"); + my ($mysqlversion,$mysqlsubver,$mysqlname) = &get_mysql_version(); + my ($usesauth,$hasauthcol,@mysql_commands); + if ($mysqlname =~ /^MariaDB/i) { + if ($mysqlversion >= 10.2) { + $usesauth = 1; + } elsif ($mysqlversion >= 5.5) { + $hasauthcol = 1; + } + } else { + if (($mysqlversion > 5.7) || (($mysqlversion == 5.7) && ($mysqlsubver > 5))) { + $usesauth = 1; + } elsif (($mysqlversion >= 5.6) || (($mysqlversion == 5.5) && ($mysqlsubver >= 7))) { + $hasauthcol = 1; + } + } + if ($usesauth) { + @mysql_commands = ("INSERT user (Host, User, ssl_cipher, x509_issuer, x509_subject) VALUES('localhost','www','','','')", + "ALTER USER 'www'\@'localhost' IDENTIFIED BY 'localhostkey'"); + } elsif ($hasauthcol) { + @mysql_commands = ("INSERT user (Host, User, Password, ssl_cipher, x509_issuer, x509_subject, authentication_string) VALUES('localhost','www',password('localhostkey'),'','','','');"); + } else { + @mysql_commands = ("INSERT user (Host, User, Password, ssl_cipher, x509_issuer, x509_subject) VALUES('localhost','www',password('localhostkey'),'','','');"); + } if ($mysqlversion < 4) { push (@mysql_commands," INSERT db (Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv,Grant_priv,References_priv,Index_priv,Alter_priv) VALUES('localhost','loncapa','www','Y','Y','Y','Y','Y','Y','N','Y','Y','Y')"); @@ -1712,23 +1891,28 @@ INSERT db (Host,Db,User,Select_priv,Inse } sub new_mysql_rootpasswd { - my ($currmysqlpass) = @_; - return ("SET PASSWORD FOR 'root'\@'localhost'=PASSWORD('$currmysqlpass')", - "FLUSH PRIVILEGES;"); + my ($currmysqlpass,$usesauth) = @_; + if ($usesauth) { + return ("ALTER USER 'root'\@'localhost' IDENTIFIED BY '$currmysqlpass'", + "FLUSH PRIVILEGES;"); + } else { + return ("SET PASSWORD FOR 'root'\@'localhost'=PASSWORD('$currmysqlpass')", + "FLUSH PRIVILEGES;"); + } } sub get_mysql_version { - my $version; + my ($version,$subversion,$name); if (open(PIPE," mysql -V |")) { my $info = ; chomp($info); close(PIPE); - ($version) = ($info =~ /(\d+\.\d+)\.\d+,/); + ($version,$subversion,$name) = ($info =~ /(\d+\.\d+)\.(\d+)\-?(\w*),/); } else { print &mt('Could not determine which version of MySQL is installed.'). "\n"; } - return $version; + return ($version,$subversion,$name); } ########################################################### @@ -1742,11 +1926,15 @@ sub copy_httpd_conf { my ($instdir,$distro) = @_; my $configfile = 'httpd.conf'; if ($distro =~ /^(?:centos|rhes|scientific)(\d+)$/) { - if ($1 > 5) { + if ($1 >= 7) { + $configfile = 'apache2.4/httpd.conf'; + } elsif ($1 > 5) { $configfile = 'new/httpd.conf'; } } elsif ($distro =~ /^fedora(\d+)$/) { - if ($1 > 10) { + if ($1 > 17) { + $configfile = 'apache2.4/httpd.conf'; + } elsif ($1 > 10) { $configfile = 'new/httpd.conf'; } } @@ -1766,19 +1954,7 @@ sub copy_httpd_conf { ######################################################### sub copy_apache2_debconf { - my ($instdir) = @_; - print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default symlink'")."\n"); - my $apache2_sites_enabled_dir = '/etc/apache2/sites-enabled'; - my $apache2_sites_available_dir = '/etc/apache2/sites-available'; - if (-l "$apache2_sites_enabled_dir/000-default") { - unlink("$apache2_sites_enabled_dir/000-default"); - } - if (-e "$apache2_sites_available_dir/loncapa") { - copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.original"); - } - copy("$instdir/debian-ubuntu/loncapa","$apache2_sites_available_dir/loncapa"); - chmod(0444,"$apache2_sites_available_dir/loncapa"); - symlink("$apache2_sites_available_dir/loncapa","$apache2_sites_enabled_dir/000-default"); + my ($instdir,$distro) = @_; my $apache2_mods_enabled_dir = '/etc/apache2/mods-enabled'; my $apache2_mods_available_dir = '/etc/apache2/mods-available'; foreach my $module ('headers.load','expires.load') { @@ -1787,6 +1963,47 @@ sub copy_apache2_debconf { print_and_log(&mt('Enabling "[_1]" Apache module.',$module)."\n"); } } + my $apache2_sites_enabled_dir = '/etc/apache2/sites-enabled'; + my $apache2_sites_available_dir = '/etc/apache2/sites-available'; + my $defaultconfig = "$apache2_sites_enabled_dir/000-default"; + my ($distname,$version); + if ($distro =~ /^(debian|ubuntu)(\d+)$/) { + $distname = $1; + $version = $2; + } + if (($distname eq 'ubuntu') && ($version > 12)) { + $defaultconfig = "$apache2_sites_enabled_dir/000-default.conf"; + } + if (-l $defaultconfig) { + unlink($defaultconfig); + } + if (($distname eq 'ubuntu') && ($version > 12)) { + print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from conf-enabled.',"'apache2'","'/etc/apache2/conf-available'","'loncapa.conf symlink'")."\n"); + my $apache2_conf_enabled_dir = '/etc/apache2/conf-enabled'; + my $apache2_conf_available_dir = '/etc/apache2/conf-available'; + if (-e "$apache2_conf_available_dir/loncapa") { + copy("$apache2_conf_available_dir/loncapa","$apache2_conf_available_dir/loncapa.original"); + } + my $defaultconf = $apache2_conf_enabled_dir.'/loncapa.conf'; + copy("$instdir/debian-ubuntu/ubuntu14/loncapa_conf","$apache2_conf_available_dir/loncapa"); + chmod(0444,"$apache2_conf_available_dir/loncapa"); + if (-l $defaultconf) { + unlink($defaultconf); + } + symlink("$apache2_conf_available_dir/loncapa","$defaultconf"); + print_and_log(&mt('Copying loncapa [_1] site file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default.conf symlink'")."\n"); + copy("$instdir/debian-ubuntu/ubuntu14/loncapa_site","$apache2_sites_available_dir/loncapa"); + chmod(0444,"$apache2_sites_available_dir/loncapa"); + symlink("$apache2_sites_available_dir/loncapa","$defaultconfig"); + } else { + print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default symlink'")."\n"); + if (-e "$apache2_sites_available_dir/loncapa") { + copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.original"); + } + copy("$instdir/debian-ubuntu/loncapa","$apache2_sites_available_dir/loncapa"); + chmod(0444,"$apache2_sites_available_dir/loncapa"); + symlink("$apache2_sites_available_dir/loncapa","$apache2_sites_enabled_dir/000-default"); + } print_and_log("\n"); } 500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.