SHANGHAI — LinkedIn is often held up as a model of how a foreign internet company can do business in China. Increasingly, it also serves as an example of how difficult that task can be.

This week, the jobs-and-professional-networking service blocked individuals from advertising jobs on its site in China, after it ran afoul of new government regulations requiring it to verify the individuals’ identities, according to a person familiar with the situation. LinkedIn said in a statement that companies could still post job listings but that it did not know when it would again allow individuals to do the same.

In August, China’s government increased scrutiny on internet job postings in response to a rash of online hiring scams, mostly for pyramid schemes. New regulations call for companies to have verification of the identities of those posting job listings.

Beijing has been following up its new regulation with audits, according to the person, who asked not to be named because the person was not authorized to speak publicly.