Years of Web Developer Problems and Solutions

The following is a list of how I solved a large variety of issues encountered in the last 5+ years as a web developer. In many cases, I shorten down the problem and solution into 2 lines, even though the solution may have taken many, many hours to uncover.

Keep in mind the problems and solutions may not match your situation exactly. Use at your own risk.

Hopefully this thread can save a few folks hours of their lives, thus paying it forward for all the Google search help over the years.

Git

Mongo

SSH

SFTP

Linux

MySQL

CSF/LDF

Gzip

WHM/cPanel

Bash/sh Scripting

Apache 2.2

PHP

Drupal 5

Drupal 6

Drupal 7

SVN

PHPList

Plesk

Git

Problem: ‘Missing Dependency: perl-Git’ error when trying to install git on a cPanel server

Solution: yum --disableexcludes=main install --enablerepo=webtatic git , where webtatic is an already installed repository

Problem: git submodule update --init fails with No submodule mapping found in .gitmodules for path 'somedirectory'

Solution: The directory ‘somedirectory’ already exists. The git submodule is trying to initialize the directory, but can’t because it already exists. Do an rmdir somedir and git rm somedir and commit, push, and then re-run git submodule update --init

Problem: github.com[0: 207.97.227.239]: errno=Connection timed out fatal: unable to connect a socket (Connection timed out)

Solution: Open port 9418 outbound in any firewalls.


Mongo

 Problem: mongod dead but subsys locked

 Solution: rm -f /var/lock/subsys/mongod && rm -f /var/lib/mongodb/mongod.lock

SSH

 Problem: protocol version mismatch - is your shell clean?" when trying to do an rsync over SSH using authorized_keys

 Solution: Change the shell from /sbin/nologin to a shell that allows logging in via SSH

Problem: When I try to ssh <hostname> I get an error " name or service not known"  

           Solution: `pico /etc/resolv.conf`    and check for any bad DNS servers. For instance, this issue occurred because an old local IP was in the file after the server was moved to a new IP

 

Problem: Running ssh -v shows the error message 'Unspecified GSS failure'

Solution: Disable GSSAPI Authentication by setting      "GSSAPIAuthentication no"  in /etc/ssh/sshd_config

 

Problem: Public Authentication doesn't work and /var/log/auth or /var/log/secure show "Authentication refused: bad ownership or modes for directory /home/USERNAME"

Solution: Check that the permissions on the /home/USERNAME folder don't allow for write access to group, so something like 650

   

Problem: Public Authentication doesn't work after manually creating a .ssh directory and .ssh/authorized_keys and adding a key

Solution: Check that permissions on the .ssh dir is 700 and the .ssh/authorized_keys is 600

SFTP

Problem: SSH works, but SFTP connection does not. /var/log/secure shows "subsystem request for sftp"

Solution: In /etc/ssh/sshd_config, set Subsystem sftp internal-sftp

  Per https://forums.gentoo.org/viewtopic-t-733616.html, In a chrooted environment, /usr/ is unlikely to exist. That's alright though because you don't actually need to execute /usr/lib/misc/sftp-server to handle an SFTP connection. The SSH daemon has this functionality built-in.

Linux

Problem: 'bad interpreter permission denied'  AND 'cannot run C compiled programs'   while trying to ./configure subversion

Solution: Move the build source out of the /tmp/ directory and into /home/username

 

Problem: While trying to compile and make the PHP PECL Extension for svn an error while running `make` was "/usr/bin/ld: cannot find -lsvn_client-1  collect2: ld returned 1 exit status  make: *** [svn.la] Error 1"

Solution: Opened the Makefile and changed it to point at the folder where the libsvn_client libraries, and other SVN libraries, were located.  SVN_SHARED_LIBADD = -Wl,-rpath,/usr/local/subversion/lib -L/usr/local/subversion/lib -lsvn_client-1 -lsvn_fs-1 -lsvn_repos-1 -lsvn_subr-1 -lapr-1        it was point to /usr/local/apache/lib

 

Problem: Error "Disk quota exceeded", but the disk space was at 44% and no quotas were set.  Attempting to add one more file caused the error. Deleting any file, even a larger file, would allow for one file to replace it.

Solution: Hosting company had to increase the inodes limit for the VPS. This limits the number of files on a filesystem.

Problem: /usr/sbin/mingetty is eating up CPU

Solutions: As root,    mv /var/run/utmp /var/run/utmp.BAK && touch /var/run/utmp

Problem: When running yum updates “TypeProblem: unsubscriptable object”

Solution: yum clean metadata

MySQL

Problem: Can't connect to MySQL server on 'mysql.example.com' (13).

Solution: SELinux blocking, run   `setsebool -P httpd_can_network_connect=1`

 

Problem: #1037 - Out of memory; restart server and try again  -- generated while running a query with ORDER BY. It became an issue after Furman and Britt Peters' servers were migrated to new machines.

           Solution: It seems this issue can be fixed by increasing the "sort_buffer_size" memory value in MySQL's /etc/my.cnf configuration file.  Increase to 80M for Furman before it worked. This is likely too high, but it worked.

Problem: #1114 - The table 'COLUMNS' is full OR The table '#sql-1cb8_39a1' is full query (while doing an ALTER ADD INDEX

           Solution 1: Check the /etc/my.cnf and test increasing or decreasin limits on certain variables. This fixed the issue when an old my.cnf with high memory values was showing "table full"

           Solution 2: Most likely there are odd character set characters in the data. For instance, if the database is old and was created on a Windows computer and moved to Linux.  Try identifying odd dashes, hypens, ascent marks, apostrophes and double_quotes and replace them like UPDATE node_revisions SET body = REPLACE(body, "’", "'")  

           Solution 3: Bug in version 5.0.45, upgrade MySQL. http://bugs.mysql.com/bug.php?id=31379

 

Problem:  MySQL stops working. "ERROR! MySQL manager or server PID file could not be found! Starting MySQL. ERROR! Manager of pid-file quit without updating file."

    Reason: This occurred when the hostname of the server was changed. A process ID file using the hostname must get changed in the process and causes theProblem.

Solution: First, make sure your running the command as the root user or via sudo. Use `top` to find the PID of mysqld_safe and/or mysqld  Then use `pkill -P {pid}` to stop the existing proceess(es). Then do a `sudo /etc/init.d/mysql start`

            This may also occur if the diskinodes getting full, at which point the host would need to double the existing limit on the server

 

Problem:  MySQL won't start. "ERROR! Manager of pid-file quit without updating file."

Solution: First, make sure your running the command as the root user or via sudo. Check for errors in the configuration file /etc/my.cnf

 

Problem: Mysql doesn't start on a server reboot.

Solution: Enable mysql or mysql in run-levels 3,4,5          sudo /sbin/chkconfig --level 345 mysqld on

            To check existing run-levels to sudo /sbin/chkconfig --list  if mysql or mysqld doesn't exist then do making sure there exists a /etc/init.d/mysql (it must be executable – chmod +x), doing a chkconfig --add mysql and making sure that it starts up at the correct runlevels (typically 3, 4 and 5). A simple chkconfig --level 345 mysql on and you’re ready to rock.  

 

Problem: Wrong bytesec when repairing a table (note: this was reached when reached during a test of restoring a database by doing a schema dump, moving .MYD files, and repairing tables/indexes)

Solution: In this case the wrong .MDY file was copied into the restore. (Note that this method of restoring is not 100% trusted, it was just a test)

 

Problem: When trying to import a database through PHPMyAdmin, “1153 -- 'max_allowed_packet' exceeded”

Solution: Under the [mysqld] section of /etc/my.cnf add a value like   max_allowed_packet = 50M

CSF/LDF

Problem: When saving the CSF firewall configuration through WHM --- Problem: The VPS iptables rule limit (numiptent) is too low (119/128) - stopping firewall to prevent iptables blocking all connections, at line 1006"

Solution: Have the hosting company set the numiptent value has been set to 256 on your server and are able to restart the firewall The suggestedSolution on many message boards it that the VPS hosting company is able to increase the numiptent value.

Gzip

Problem: Unrecognized command line option

Solution: http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg75066.html

 

WHM/cPanel

Problem: Brute force error message.

Solution: Login via SSH. run mysql -u root -p  and login to MySQL. SELECT cphulkd;  delete from brutes;  delete from logins;

Problem: "Invalid License File" message upon logging into WHM

Solution: Connect via SSH and issue the command `service cpanel restart`   alternatively    `/usr/local/cpanel/cpkeyclt`   might also be necessary

Problem: Free IP addresses not showing under “Change Site IP Address” interface

Solution: Run ‘Rebuild the IP address Pool’ from the sidebar

Problem: In cPanel Cron Jobs section "/usr/bin/crontab permissions are wrong"

Solution: `chmod 4755 /usr/bin/crontab`

 

Problem: Error "Error fetching zone data for cpanel" when trying to edit the MX records.

Solution: This was a result of deleting the zone for the main domain. Went to "Add a DSN Zone" and then add a new zone. Then return to cPanel and edit the MX records as usual under Mail >> MX Entry

 

Problem: Error message sent to email "syslogd failed @ Fri Feb 19 16:01:01 2010. A restart was attempted automagically."

Solution: Restart the log daemon  /etc/init.d/rsyslog restart

 

Problem: In WHM "Your license could not be activated because: Unactivated License File"

Solution: Contact the hosting company if the cPanel site also says the IP address isn't registered.  If it says the IP is registered then run

Problem: When running /scripts/upcp  “Undefined subroutine &Cpanel::Update::automatic_updates_enabled called at /scripts/upcp line 273.”

Solution: http://forums.cpanel.net/f5/scripts-upcp-force-produces-error-173992.html 

Bash/sh Scripting

Problem: Log \#015: invalid numeric value error

           Solution: Don't create initial scripts in Windows because this adds hidden carriage returns (i.e. \r or character #015)

 

Problem: While executing an sh script the error "command not foundpts" and "not a valid identifier" along with strange behavior

Solution: Character set of the file is screwed up. Delete the file and create a new copy from scratch. The text editor used to create the original may be inserting breaklines or other non standard characters.

 

Named/bind

Problem: Error starting bind/named - "Starting named: /usr/sbin/named: symbol lookup Problem: /usr/sbin/named: undefined symbol: dns_dispatch_hash"

Solution: Reinstall bind, using a "cPanel >> Upgrade to Latest Version" and the "Service Configuration >> Nameserver Setup" in WHM/cPanel

 

Apache 2.2

Problem: While installing SSL Cert - in Firefox got the message "SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long)"  

Solution: Apache configuration was missing             SSLEngine On

 

Problem: In Apache error_log - SoftException in Application.cpp:376: Mismatch between target GID (32013) and GID (99)

Solution: Use chmod to set the correct permissions on the directory, like chmod 32011:32013 *   and chmod 32011:32013 .*

 

Problem: In Apache error_log - pcfg_openfile: unable to check htaccess file, ensure it is readable

Solution: chmod 755 on public_html

 

Problem: 404 error using mod_userdir  /~username  and Drupal

Solution: Set the RewriteBase directive in .htaccess to /~username

 

Problem: On apache2 restart "Syntax error on line 300 of /etc/apache2/apache2.conf: Cannot load /usr/local/apache2/modules/mod_dav_svn.so into server: /usr/local/subversion/lib/libsvn_subr-1.so.0: undefined symbol: apr_hash_clear"

Solution: Recompile SVN for Apache Server

  1. ./configure --prefix=/usr/local/subversion --with-apr=/usr/local/apache --with-apr-util=/usr/local/apache --with-apxs=/usr/local/apache/bin/apxs --with-neon=/usr/local/
  2. sudo make
  3. sudo make install

 

Problem: On apache2 restart "/usr/local/apache2/conf/httpd.conf: Cannot load /usr/local/apache2/modules/mod_dav_svn.so into server: /usr/lib/libsvn_fs_base-1.so.0: undefined symbol: db_create "

Solution: Install subversion 1.5.5 from source, link to the .so it creates and restart began working. Possibly an issue in the yum build not lining to BerkleyDB and/or BDB not being installed

 

Problem: After using EasyApache to rebuild Apache and PHP the error "/usr/local/modules/mod_dav_svn.so "Cannot open shared object file: No such file or directory"  

Solution: SVN must be built against the new installation. Temporarily commented out the LoadModule modules/mod_dav_svn.so and LoadModule module/mod_authz_svn.so and then rebuilt SVN against Apache from source

 

Problem: 403 Forbidden

Solution: Ensure the linux account under which Apache is running (use `top` to find out) has access to the /home/account/public_html  and also the files within it.

 

Problem: After installing SSL certificate, a restart shows no errors but still no connection

Solution: Verify port 443 is open. Open on any software (Lokkit/iptables) and hardware firewalls

   

Problem: 404 due to Rewrite rules and entire .htaccess file being ignored.

Solution: Enable AllOverride All via the appropriate <Directory ....> setting in httpd.conf

 

Problem: On Apache restart, “DocumentRoot /home/someuser/public_html does not exist.

Solution: SELinux is blocking. Use  `setsebool -P httpd_enable_homedirs true`  and then change the flags on the home directory via   `chcon -R -t httpd_sys_content_t /home/someusername/public_html`         then restart Apache again.

Problem: On restart "mixing * ports and non-* ports with a NameVirtualHost address is not supported"

Solution: If using cPanel/WHM then try running             /scripts/rebuildhttpdconf

PHP

Problem: Recompiling with suPHP errors in Apache error log "SoftException in Application.cpp:592: Directory / is not owned by alliance" and "Premature end of script headers: index.php"

Solution: suPHP requires the / directory be owned by root. It was owned by a random userid.   chown root:root /  fixed this issue

 

Problem: After recompiling with suPHP errors in Apache error log “SoftException in Application.cpp:256: File "/home/example/public_html/index.php" is writeable by group”

Solution: Remove group write permission    chmod -Rf g-w *

Problem: Configuring SSL Certificate in Apache .conf files with a .crt and .pem says “does not exist or is empty”

Solution: SELinux can’t read the files. Update the context to be readable by httpd like     sudo chcon -R -t httpd_user_content_t  somfilename.crt

Problem: On Apache restart Starting httpd: (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs

Solution: fuser -k -n tcp 80     (which kills any processes running on port 80

Problem: In Apache error logs, the following appears “symbolic link not allowed or link target not accessible” and files that are located in a symlink directory are not accessible.

Solution: In the /etc/http/conf/httpd.conf the main Options line probably includes +SymLinksIfOwnerMatch, it will need to be -SymLinksIfOwnerMatch in order for a user to follow a symlink outside of their home directory. Or, if using cPanel WHM go to  Main >> Service Configuration >> Apache Configuration >> Global Configuration Main >> Service Configuration >> Apache Configuration >> Global Configuration and uncheck the SymLinksIfOwnerMatch checkbox and save.

Drush

Problem: When trying to do a drush update -l example.com Warning: Cannot use a scalar value as an array in ~/public_html//sites/all/modules/domain/domain.bootstrap.inc on line 58  Warning: session_start(): Cannot send session cookie - headers already sent by (output started at ~/public_html/sites/all/modules/domain/domain.bootstrap.inc:58) in ~/public_html//includes/bootstrap.inc on line 1031

Solution: If the domains module is install the include statement at the bottom of the settings.php must be temporarily commented out.

 

Drupal 5

Problem: HTTP request staus fails, or Cron run failed, or Unable to fetch any information about available new releases and updates.

Solution: Correct Nameservers so they resolve the external IP addresses these scripts are calling. More details at http://drupal.org/node/222454#comment-1136650

 

Problem: httpd: bad user name key   when trying to (re)start

Solution: Check configuration files for old VirtualHosts which declare a User or Group parameter. For instance, if an Apache conf file had a rule for a domain which is no longer hosted on the server and the account and directory have since been deleted.

 

Drupal 6

 

Problem: “Trying to clone an uncloneable object of class mysqli” when trying to use a mysqi connection.  

Solution: Adding  'php_flag zend.ze1_compatibility_mode off'  to the .htaccess fixed this, plus an issue with a certain page rendering a blank page with no error messages in PHP or Apache and a HTTP/0.9 200 OK response.

 

Problem: Unable to login, no database access

Solution: Edit the /modules/user/user.module and bypass the validation function, like

            function user_login_final_validate($form, &$form_state) {

                      global $user;

                      $user->uid = 1;            // adding this line fakes out the login

 

Problem: On the /admin/reports/status the error "HTTP request status fails" appears

Solution: One possibleSolution is to change run the query UPDATE variable SET value = 'b:0' WHERE name = 'drupal_http_request_fails';

 

Problem: While upgrading from Drupal 5 to 6, a copy of the live Drupal database was made and setup as a development. When trying to login to Drupal (/user) with the development db Drupal would open a session but show "not authorized to access this page"  on any secured page.

Solution: Restart MySQL

   

Problem: "Attempting to re-run cron while it is already running."

Solution: Clear the cache and remove cron_semaphore and cron_last from the variables table. If the cron job gets "stuck" and you're unable to access any admin/* page then just wait a while. It seems the php job may need to timeout.

 

Problem: After migrating a D6 sandbox to a new server the /admin/* pages, but not regular pages showed "maximum execution time of 30 seconds exceeded" in various /include/* files.

Solution: Set php_value max_execution_time                 90        in the .htaccess file

 

Problem: The Comment wasn't showing a preview when the "Preview Comment" button was pressed

Solution: The button value was changed, it must be labedl "Preview", instead of something custom like "Preview Comment" because the comment_form function checks for ($op == t('Preview')

 

Problem: "directory does not exist" or "directory is not writable", despite 777 and appropriate permissions

Solution: On Fedora and other distros the SELinux can be running. Set each directory to make writeable by httpd, like this example

            sudo /usr/sbin/semanage fcontext -a -t httpd_sys_content_t "/home/user/public_html(/.*)?"

            sudo /sbin/restorecon -R ~/public_html

            To temporarily disable run        setenforce 0            See http://drupal.org/node/50280 for more info

            To set SELinux to only log errors  edit  /etc/selinux/config  and set  SELINUX=permissive        (as described in   man selinux)

 

Problem: In Drupal, errors "Error sending e-mail". In Sendmail log "NOQUEUE: SYSERR /etc/mail/sendmail.cf Permission denied".  PHP's mail function works from the command line, but not via the webserver.

Solution: SELinx is blocking httpd from sending mail.  To fix, run                    Then run        sudo /usr/sbin/semanage boolean  -l|grep sendmail        and verify that the output of the command shows          httpd_can_sendmail                 -> on        httpd_can_sendmail

            Note: Without the -P option, only the current boolean value is affected; the boot-time default settings are not changed. If the -P option is given, all pending values are written to the policy file on disk. So they will be persistent across reboots.

 

Problem: Ubercart's Payment methods "pane" doesn't render

Solution: Ajax was trying to call back to pages like, http://example.org/?q=cart/checkout/payment_details/credit, but these pages needed to use the https version. Adding /cart/checkout/* to the Securepages settings /admin/settings/securepages allowed the https versions of these ajax pages to load.

 

Problem: Unable to login because visiting /user redirects to https:// and no SSL certificate is present (usually when moving a copy to a development server or a dev domain name)

Solution: Temporarily move the /sites/all/modules/securepages directory to another name like /sites/all/modules/temp-securepages

 

Problem: Fatal Problem: Unsupported operand types in ~/public_html/flex-tek/modules/block/block.admin.inc on line 39 when accessing /admin/build/block

Solution: Occurred when a theme was renamed. The old theme name was still being set as the default in a settings.php. Removing it ultimately fixed the issue. However, as best practice, before moving or deleting a theme you should really disable any blocks associated to it, and uncheck any options associated with it on /admin/build/theme

 

Problem: Went trying to use Drush just after it was installed. includes/table.inc: No such file or directory Drush needs a copy of the PEAR Console_Table library saved as Drush  [error] includes/table.inc. Drush attempted to download this automatically, but failed. To continue you will need to download the 1.1.3 package from http://pear.php.net/package/Console_Table, extract, and move the file Table.php to includes/table.inc.    

Solution: Log out and log back in. This happened when I installed drush as root and tried to immediately run it

 

Problem "Cannot use a scalar value as an array" when trying to use Drush

Solution: This is due to the "Domains" module requiring "include './sites/all/modules/domain/settings.inc';" in the bottom of settings.php files. Temporarily comment out the "include './sites/all/modules/domain/settings.inc';", run Drush, then re-enable it.

 

Problem: Block(s) created in a hook_block won't appear.

Solution: Check the blocks table and see if the status flag is set to 1 without a region being set. If so, remove the record and make sure the status value is not set in the hook_block unless a region is also specified.

   

Problem: "MySQL server has gone away query:" message, and a lot of them, when trying to access the /admin/build/securepages page

Solution: Occurs when the 'admin/build/securepages' page is visited via http://, not https:.  Use PHPMyAdmin to temporarily disable the auto switching feature by executing  update variable set value = 'b:0' WHERE name Like 'securepages_switch';  Then, flush the Cache tables.  Then visit  https://www.example.com/admin/build/securepages  (be sure to use https). Then, Add admin/build/securepages to the list of "Make secure only the listed pages."  Re-enable "Switch back to http pages when there are no matches" and Save

Problem: Upon adding a new domain, content is not visible to Anonymous users, but is visible to the admin, when Domain Access module is installed.

Solution: When the Domain Strict module is enabled the roles must be explicitly granted access to use new domain.  This is done under the “User Defaults” tab /admin/build/domain/roles

Problem: PHP Fatal Problem:  Call to undefined function preg_last_error() in ~/public_html/sites/all/modules/invisimail/invisimail.module on line 157

Solution: Invismail uses a function that isn’t included in older version of PHP. Redhat PHP 5.1.6 doesn’t port future updates. Disabling Invismail fixes this issue.

Problem: Class 'XMLWriter' not found when trying to use xmlsitemap 6.x.2-beta2

Solution: yum install php-xml

Problem: Imagecache images won’t generate on PHP 5.1.6 even though the same code works on a different server.

Solutions: Permissions did not seem to be the issue. Going to Drupal’s Configuration -> File System and setting the download type to “Private”  

   was theSolution.

Drupal 7

Problem: Error logs show “The file permissions could not be set on public://filenamehere”. and Warning: filesize() [function.filesize]: stat failed for public://filenamehere in file_save() (line 573 of /home/example/public_html/includes/file.inc).

Solution: Drupal created a directory, literally named public: , in the root Drupal directory. Deleting this directory resolved the issue. This may have been caused by changing the location of the public file system path value via /admin/config/media/file-system after having used /sites/default/files  Kudos for the Solution go to this thread

SVN

Problem: When running  `svn --version`  SVN was compiles without, and doesn’t show,  handles 'https' scheme

Solution:  Install devel packages  `yum install expat-devel openssl-devel`

Problem: 'somedirectory' is not a working copy directory

Solution: Move that directory out of the SVN path. Run 'svn cleanup'. Move the directory back to the original location. Do an 'svn revert somedirectory'

 

Problem: Using Subverions + Apache2 dav_svn - error "commit failed path not found /svn/webby/!svn/9ac....3829"

Solution: The .htaccess file in the parent folder of the virtual host root was causingProblems. Probably rewrites or messing with the AuthUserFile authentication. Renamed .htaccess and it works. It's probably best not to mix an SVN repo virtualhost and a regular website with it's own .htaccess in the same folder for various security reasons.

   

Problem: Server sent unexpected return value (403 Forbidden) in response to PUT request for '/svn/biemedia/!svn

    Solutin: Add the following within the <Location> directive

            Order allow,deny

            Allow from all

   

Problem: When using svn propedit svn:ignore .   to ignore certain files, the use of svn add --force . doesn't pay attention to the ignore rules as it should according to the SVN book.

Solution: Used svn --version  and found the active version was was old 1.1.4-2.ent  Updated subversion to 1.5.5

   

Problem: When trying to use the http or https protocols the error "Unrecognized URL scheme for https"

Solution: Running svn --version shows there were no linked client libraries to handle http or https.  Rebuilding the clients into the subversion and linking in neon and/or serf will provide for use of http and https

   

Problem: "svn: None of the environment variables SVN_EDITOR, VISUAL or EDITOR are set, and no 'editor-cmd' run-time configuration option was found" - When trying to issue a command like svn propedit svn:ignore .

Solution: Type  export SVN_EDITOR=nano   or for a permanent change, open ~/.bashrc  and add   SVN_EDITOR=nano

 

Problem: "error while loading shared libraries: libaprutil-1.so.0" when trying to do any svn command

Solution: Ensure the linux account is not running in a jail shell. (Go to WHM -> Manage Shell Access and change to "Enable Normal Shell"). Alternatively, there could be aProblem with the linked libraries not being read, which could be corrected by adding the .so file's path to /etc/ld.so.conf and then saving and running     ldconfig

   

Problem: svn: Commit failed (details follow): svn: Directory '~/public_html/sites/all/modules/drush' is missing

Solution: Revert (recursively if necessary -R) the file or directory, like        svn -R revert sites/all/modules/drush

 

Problem: Server sent unexpected return value (405 Method Not Allowed)

Solution: The file or directory already exists in the repo. Deleting the local copy and doing an SVN up may fix the issue. Then move the changes back into the working copy.  If this doesn't work it may be best consider the working copy got corrupt. Make a copy of it, checkout a new copy of the entire repository and merge any changes from the corrupt copy as necessary.

 

Problem: When ./configure Neon “could not find library containing RSA_new”

Solution: Install openssl-devel        `yum install openssl-devel`  or   `apt-get install openssl-devel`

 

Problem: When ./configure Neon “no XML parser was found: expat or libxml 2.x required”

Solution: Install expat-devel  `yum install expat-devel`

 

Problem: svn: Checksum mismatch for

Solution: Corrupt svn files.  Checkout a copy of theProblem directory to a temporary location and then replace the corrupt directory with the fresh checkout

 

Problem: Need to revert back to a previous version of a file or directory and commit those changes to head.

Solution: Requires a reverse merge, see  http://www.jorgepablos.com/2010/03/revert-a-file-to-an-old-revision-in-subversion/

 

Problem: When checking out a large set of files, “svn: REPORT of '/svn/repo/!svn/vcc/default': Could not read response body: Secure connection truncated”

Solution:  By default, SVNPathAutz is on in the Apache config. Disabling path-based authorization, like via mod_authz_svn, to speed up access, but since we are using mod_authz_svn, it is best to keep it on. However, having it 'on' can cause  "Secure connection truncated" errors on large checkouts, due to memory leaks. In those cases it can be temporarily turned off to allow the checkout, and then turned back on See, http://svnbook.red-bean.com/en/1.5/svn.serverconfig.httpd.html

Problem: SSL handshake failed: SSL Problem: unknown protocol (https://example.com)

Solution: Ping the domain. Make sure it’s reachable.

PHPList

Problem: The From: address shows Default Name <default@example.com>

Solution: The From address in the message's From: textfield should be of the form "Actual Person" <actualperson@example.com>   Otherwise it may default to something like default@example.com

 

Plesk

Problem: Email matching the web domain won't send from the web server, but email to other domains works fine.

Solution: Email is not leaving the web server and it delivered locally or to a queue.  In Plesk, disabling Mail for the domain and pointing the MX records to the actual, remote MX server fixes. See Jim's post on 11/01/2010 here http://www.google.com/support/forum/p/Google+Apps/thread?tid=09165a87da6... for more details.        It may be necessary to setup an A record within the web server’s DNS for the MX domain if that MX domain is the same as the emailing domain.

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