Since I just wanted to check the email and webserver remained up I constructed a noddy python script.
This is it with the actual addresses modified. Feel free to use it as you want. I just have it running every half hour on a cron job.
0,30 * * * * /home/colin/check_site.py
#!/usr/bin/python
import httplib
import smtplib
import poplib
def send_email(http_error, pop_error):
subject = ""
reason = ""
if http_error == "" :
subject = "Email down - website up"
reason = pop_error
elif pop_error == "":
subject = "Website down - email up"
reason = http_error
else:
subject = "Website and email down"
reason = http_error + "\r\nEmail - " + pop_error
try:
server = smtplib.SMTP("smtp.myhost.com")
from_add = "from@someserver.com"
to_add = ("my.email@server.com")
message = "Subject: " + subject + "\r\n"
message += "To: Name <my.email@server.com>\r\n"
message += "From: Name <from@someserver.com>\r\n"
message += "\r\n"
message += "Server down - " + reason
server.sendmail(from_add, to_add, message)
server.quit()
print "Sent email"
except:
print "Unable to send"
# guess we must not have a connection,
# don't bother storing the email because
# the problem is most likely at our end.
http_error = ""
pop_error = ""
try:
connection = httplib.HTTPConnection("www.ourserver.com")
connection.request("HEAD", "/")
response = connection.getresponse()
if response.status != 200:
print response.status, response.reason
send_email("Invalid response - %d %s" % (response.status, response.reason))
connection.close()
except Exception, inst:
http_error = "Unable to connect " + inst.message
try:
pop = poplib.POP3("pop3.ourserver.com")
pop.quit()
except Exception, inst:
pop_error = "Unable to connect " + inst.message
if not (http_error == "" and pop_error == ""):
send_email(http_error, pop_error)
