mttjohnson

Other people have run into this issue:
Warning: DOMDocumentFragment::appendXML(): Entity: line 1: parser error : CData section too big found in /magento/lib/internal/Magento/Framework/View/TemplateEngine/Xhtml/Template.php on line 60
https://github.com/magento/magento2/issues/4695
https://github.com/magento/magento2/issues/8084

Not saying they figured much out, but other people have been experiencing the issue as well.

The limit comes from the libxml library that PHP uses for XML processing:
http://php.net/manual/en/domdocument.loadxml.php#113676

mttjohnson

ssh -tq user@host1 "tail -f /var/log/nginx/www.example.com-access.log | grep -i '/mypath.html'"
ssh -tq user@host1 "tail -f /var/log/nginx/www.example.com-access.log | grep -i '/mypath.html'"
ssh -tq user@host1 "tail -f /var/log/nginx/www.example.com-access.log | grep -i '/mypath.html'"
ssh -tq user@host1 "tail -f /var/log/nginx/www.example.com-access.log | grep -i '/mypath.html'"

mttjohnson

# This example uses a GraphQL query meant for a Magento 2 (2.3 Alpha) endpoint

# Take a formatted GraphQL query and convert it to a JSON encoded string
GRAPHQL_QUERY=$(
echo '
{
    products(
      search: "Messenger"
      filter: {
             sku: {like: "24-MB%"}

mttjohnson

# Make a backup of the config
cp -a app/etc/env.php app/etc/env.php.bak

# Create new config file to use for replacement
cp -a app/etc/env.php app/etc/env.php.new

# Edit new config
vi app/etc/env.php.new

# Confirm syntax on file

mttjohnson

# Find the request URI from a PHP-FPM process in a long running MySQL process


# Show MySQL processes to locate the connection you want to investigate
mysql -Be 'SHOW PROCESSLIST;'

# Id	User	Host	db	Command	Time	State	Info	Rows_sent	Rows_examined
# 957890	myuser_prod	127.0.0.1:34452	mydbname_prod	Sleep	0		NULL	158	632

# Find the client port from the mysql process list and save that to a variable

mttjohnson

# To filter network requests to only show requests to a specific domain and exclude urls with specific keywords
domain:www.example.com -static -media

# https://stackoverflow.com/questions/38524801/chrome-dev-tool-any-way-to-exclude-each-call-containing-a-string-with-regex

mttjohnson

export NEW_CRYPT_KEY=$(cat /dev/urandom | env LC_CTYPE=C tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
php -r "
    \$doc = new DOMDocument();
    \$doc->load('app/etc/local.xml');
    \$xpath = new DOMXPath(\$doc);
    \$node = \$xpath->query('/config/global/crypt/key')->item(0);
    \$oldtext = \$doc->createTextNode( \$node->textContent);
    \$node->nodeValue = '${NEW_CRYPT_KEY}';
    echo 'replacing ' . \$oldtext->wholeText . ' with ' . \$doc->createTextNode( \$node->textContent)->wholeText . \"\n\";
    \$doc->save('app/etc/local.xml');

mttjohnson

# If local hosts files are routinely used it may be useful to have a script verify if the domain name
# is being overriden locally to a specific IP address, and if that IP should match what is publically 
# being listed by public DNS servers.

# This is useful as a sanity check to make sure you have a local hosts file entry in place before running
# some operation, so that it doesn't hit the live site, and instead operates against the expected configured
# destination.

# It can also be used to abort if this operation is unsafe to run against the server when it is responding
# publically, and you only want the script to operate when the server is not live.

mttjohnson

# Show the full list of all recent login sessions
last

# Find the last time users logged into the system
lastlog

# Find the last time users logged into the system from wtmp files
for USER in `getent passwd | awk -F ":" '{print $1}'`
do
   last -1 $USER | sed -e '/wtmp/d' -e '/^$/d'

mttjohnson

# Use this to capture packets on the web server side and then analyze in wireshark using 
# curl as the HTTP client to log the pre master secret so that the packets can be 
# decrypted and analyzed within wireshark

# This will work without exposing the server's private key and works with TLS 1.2 and DH ciphers
# During the handshake both client and server generate a new unique secret used to encrypt all 
# communication that happens after the handshake. Curl can log that secret and wireshark can
# reference that log to decrypt packets captured by tcpdump.

# Tested with curl 7.59.0