Hi, I am using a Digital Ocean droplet with CentOS version 7, I have successfully created a swap file as well, but certbot keeps failing with this command. Anyone has any ideas?
[root@mail letsencrypt]# ./letsencrypt-auto -vv -h --server https://intrafeed.co certonly -a manual
Bootstrapping dependencies for RedHat-based OSes...
yum is /usr/bin/yum
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base: mirror.hmc.edu
epel: mirror.prgmr.com
extras: mirror.n5tech.com
updates: mirror.cogentco.com
Package gcc-4.8.5-4.el7.x86_64 already installed and latest version
Package dialog-1.2-4.20130523.el7.x86_64 already installed and latest version
Package augeas-libs-1.4.0-2.el7.x86_64 already installed and latest version
Package 1:openssl-1.0.1e-51.el7_2.5.x86_64 already installed and latest version
Package 1:openssl-devel-1.0.1e-51.el7_2.5.x86_64 already installed and latest version
Package libffi-devel-3.0.13-16.el7.x86_64 already installed and latest version
Package redhat-rpm-config-9.1.0-68.el7.centos.noarch already installed and latest version
Package ca-certificates-2015.2.6-70.1.el7_2.noarch already installed and latest version
Package python-2.7.5-34.el7.x86_64 already installed and latest version
Package python-devel-2.7.5-34.el7.x86_64 already installed and latest version
Package python-virtualenv-1.10.1-2.el7.noarch already installed and latest version
Package python-tools-2.7.5-34.el7.x86_64 already installed and latest version
Package python-pip-7.1.0-1.el7.noarch already installed and latest version
Package 1:mod_ssl-2.4.6-40.el7.centos.1.x86_64 already installed and latest version
Nothing to do
Creating virtual environment...
Running virtualenv with interpreter /usr/bin/python2.7
New python executable in /root/.local/share/letsencrypt/bin/python2.7
Also creating executable in /root/.local/share/letsencrypt/bin/python
Installing setuptools, pip, wheel...done.
Installing Python packages...
Had a problem while installing Python packages:
Collecting argparse==1.4.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 5))
Downloading argparse-1.4.0-py2.py3-none-any.whl
Collecting pycparser==2.14 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 11))
Downloading pycparser-2.14.tar.gz (223kB)
Collecting cffi==1.4.2 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 14))
Downloading cffi-1.4.2.tar.gz (365kB)
Collecting ConfigArgParse==0.10.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 31))
Downloading ConfigArgParse-0.10.0.tar.gz
Collecting configobj==5.0.6 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 33))
Downloading configobj-5.0.6.tar.gz
Collecting cryptography==1.2.3 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 35))
Downloading cryptography-1.2.3.tar.gz (373kB)
Collecting enum34==1.1.2 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 57))
Downloading enum34-1.1.2.tar.gz (46kB)
Collecting funcsigs==0.4 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 60))
Downloading funcsigs-0.4-py2.py3-none-any.whl
Collecting idna==2.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 63))
Downloading idna-2.0-py2.py3-none-any.whl (61kB)
Collecting ipaddress==1.0.16 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 66))
Downloading ipaddress-1.0.16-py27-none-any.whl
Collecting linecache2==1.0.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 69))
Downloading linecache2-1.0.0-py2.py3-none-any.whl
Collecting ndg-httpsclient==0.4.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 72))
Downloading ndg_httpsclient-0.4.0.tar.gz
Collecting ordereddict==1.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 74))
Downloading ordereddict-1.1.tar.gz
Collecting parsedatetime==2.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 76))
Downloading parsedatetime-2.1-py2-none-any.whl
Collecting pbr==1.8.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 79))
Downloading pbr-1.8.1-py2.py3-none-any.whl (89kB)
Collecting psutil==3.3.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 82))
Downloading psutil-3.3.0.tar.gz (261kB)
Collecting pyasn1==0.1.9 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 104))
Downloading pyasn1-0.1.9-py2.py3-none-any.whl
Collecting pyOpenSSL==0.15.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 116))
Downloading pyOpenSSL-0.15.1-py2.py3-none-any.whl (102kB)
Collecting pyRFC3339==1.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 119))
Downloading pyRFC3339-1.0-py2.py3-none-any.whl
Collecting python-augeas==0.5.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 122))
Downloading python-augeas-0.5.0.tar.gz (90kB)
Collecting python2-pythondialog==3.3.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 124))
Downloading python2-pythondialog-3.3.0.tar.bz2 (1.8MB)
Collecting pytz==2015.7 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 127))
Downloading pytz-2015.7-py2.py3-none-any.whl (476kB)
Collecting requests==2.9.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 141))
Downloading requests-2.9.1-py2.py3-none-any.whl (501kB)
Collecting six==1.10.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 144))
Downloading six-1.10.0-py2.py3-none-any.whl
Collecting traceback2==1.4.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 147))
Downloading traceback2-1.4.0-py2.py3-none-any.whl
Collecting unittest2==1.1.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 150))
Downloading unittest2-1.1.0-py2.py3-none-any.whl (96kB)
Collecting zope.component==4.2.2 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 153))
Downloading zope.component-4.2.2.tar.gz (546kB)
Collecting zope.event==4.1.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 155))
Downloading zope.event-4.1.0.tar.gz (476kB)
Collecting zope.interface==4.1.3 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 157))
Downloading zope.interface-4.1.3.tar.gz (141kB)
Collecting mock==1.0.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 175))
Downloading mock-1.0.1.zip (861kB)
Collecting letsencrypt==0.7.0 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 178))
Downloading letsencrypt-0.7.0-py2-none-any.whl
Collecting acme==0.8.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 184))
Downloading acme-0.8.1-py2.py3-none-any.whl (91kB)
Collecting certbot==0.8.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 187))
Downloading certbot-0.8.1-py2-none-any.whl (217kB)
Collecting certbot-apache==0.8.1 (from -r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 190))
Downloading certbot_apache-0.8.1-py2-none-any.whl (103kB)
Requirement already satisfied (use --upgrade to upgrade): setuptools>=1.0 in /root/.local/share/letsencrypt/lib/python2.7/site-packages (from cryptography==1.2.3->-r /tmp/tmp.vm9DPUqhle/letsencrypt-auto-requirements.txt (line 35))
Installing collected packages: argparse, pycparser, cffi, ConfigArgParse, six, configobj, idna, pyasn1, enum34, ipaddress, cryptography, funcsigs, linecache2, pyOpenSSL, ndg-httpsclient, ordereddict, parsedatetime, pbr, psutil, pytz, pyRFC3339, python-augeas, python2-pythondialog, requests, traceback2, unittest2, zope.interface, zope.event, zope.component, mock, acme, certbot, letsencrypt, certbot-apache
Running setup.py install for pycparser: started
Running setup.py install for pycparser: finished with status 'done'
Running setup.py install for cffi: started
Running setup.py install for cffi: finished with status 'done'
Running setup.py install for ConfigArgParse: started
Running setup.py install for ConfigArgParse: finished with status 'done'
Running setup.py install for configobj: started
Running setup.py install for configobj: finished with status 'done'
Running setup.py install for enum34: started
Running setup.py install for enum34: finished with status 'done'
Running setup.py install for cryptography: started
Running setup.py install for cryptography: finished with status 'error'
Complete output from command /root/.local/share/letsencrypt/bin/python2.7 -u -c "import setuptools, tokenize;file='/tmp/pip-build-FAjqsR/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(file).read().replace('\r\n', '\n'), file, 'exec'))" install --record /tmp/pip-XvLkmy-record/install-record.txt --single-version-externally-managed --compile --install-headers /root/.local/share/letsencrypt/include/site/python2.7/cryptography:
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/init.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/about.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/fernet.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/exceptions.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/utils.py -> build/lib.linux-x86_64-2.7/cryptography
creating build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/init.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/name.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/general_name.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/base.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/extensions.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/oid.py -> build/lib.linux-x86_64-2.7/cryptography/x509
creating build/lib.linux-x86_64-2.7/cryptography/hazmat
copying src/cryptography/hazmat/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/multibackend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/interfaces.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/keywrap.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/cmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/constant_time.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/serialization.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/padding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings
copying src/cryptography/hazmat/bindings/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ciphers.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/cmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x509.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ec.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/backend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/ciphers.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/backend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/totp.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/hotp.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dh.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ec.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/padding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/rsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/x963kdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/concatkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/hkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/pbkdf2.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/algorithms.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/modes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/base.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/interfaces
copying src/cryptography/hazmat/primitives/interfaces/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/interfaces
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/_conditional.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/binding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
copying src/cryptography/hazmat/bindings/commoncrypto/init.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
copying src/cryptography/hazmat/bindings/commoncrypto/binding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
running egg_info
writing requirements to src/cryptography.egg-info/requires.txt
writing src/cryptography.egg-info/PKG-INFO
writing top-level names to src/cryptography.egg-info/top_level.txt
writing dependency_links to src/cryptography.egg-info/dependency_links.txt
writing entry points to src/cryptography.egg-info/entry_points.txt
warning: manifest_maker: standard file '-c' not foundreading manifest file 'src/cryptography.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
no previously-included directories found matching 'docs/_build'
warning: no previously-included files matching '*' found under directory 'vectors'
writing manifest file 'src/cryptography.egg-info/SOURCES.txt'
running build_ext
generating cffi module 'build/temp.linux-x86_64-2.7/_padding.c'
creating build/temp.linux-x86_64-2.7
generating cffi module 'build/temp.linux-x86_64-2.7/_constant_time.c'
generating cffi module 'build/temp.linux-x86_64-2.7/_openssl.c'
building '_openssl' extension
creating build/temp.linux-x86_64-2.7/build
creating build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_openssl.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_openssl.o
In file included from /usr/include/krb5.h:8:0,
from /usr/include/openssl/kssl.h:72,
from /usr/include/openssl/ssl.h:165,
from build/temp.linux-x86_64-2.7/_openssl.c:512:
/usr/include/krb5/krb5.h:8193:24: fatal error: et/com_err.h: No such file or directory
#include <et/com_err.h>
^
compilation terminated.
error: command 'gcc' failed with exit status 1
Command "/root/.local/share/letsencrypt/bin/python2.7 -u -c "import setuptools, tokenize;file='/tmp/pip-build-FAjqsR/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(file).read().replace('\r\n', '\n'), file, 'exec'))" install --record /tmp/pip-XvLkmy-record/install-record.txt --single-version-externally-managed --compile --install-headers /root/.local/share/letsencrypt/include/site/python2.7/cryptography" failed with error code 1 in /tmp/pip-build-FAjqsR/cryptography
You are using pip version 8.0.3, however version 8.1.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
[root@mail letsencrypt]#